X-Junk-Score: 0 [] X-Cloudmark-Score: 0 [] X-Cloudmark-Analysis: v=2.3 cv=PbaBeRpd c=1 sm=1 tr=0 a=GNns0A+hMfDB3dPTwgDFUw==:117 a=x7bEGLp0ZPQA:10 a=JZygid9Izu4A:10 a=_RQrkK6FrEwA:10 a=vnREMb7VAAAA:8 a=pGLkceISAAAA:8 a=Ia-xEzejAAAA:8 a=hOpmn2quAAAA:8 a=eKhGbfrDAAAA:8 a=3oc9M9_CAAAA:8 a=ULeB_WkQ81ltMzsrX7UA:9 a=UTUW4WR5eb4MChLH:21 a=iDQhXqiNqWeCq5eO:21 a=QEXdDO2ut3YA:10 a=gvSQh4r-fQ0A:10 a=MapYJXmLHEFGg5zlEYMA:9 a=q932OZh0PsWQGWCc:21 a=TqQoCAT2Ud5gdBQc:21 a=EpB9yZargrRnZivF:21 a=Urk15JJjZg1Xo0ryW_k8:22 a=GyA-uvUxXSCciAkwuKQO:22 a=UDUmxsVa2tvOjJGaeGiU:22 From: "Kelly Troyer keltro@gmail.com" Received: from mail-lj1-f194.google.com ([209.85.208.194] verified) by logan.com (CommuniGate Pro SMTP 6.2.14) with ESMTPS id 532836 for flyrotary@lancaironline.net; Wed, 15 Jul 2020 18:40:17 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.208.194; envelope-from=keltro@gmail.com Received: by mail-lj1-f194.google.com with SMTP id r19so4557574ljn.12 for ; Wed, 15 Jul 2020 15:40:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to; bh=VfGyaLBlR0ldRUKt3S3RNr9J8hb8oo3RgtEYeiIYf14=; b=nfXsGLKMihNPOTcv1/jkLOZo0Kr+jnDU/8cEiJU8IlUFmvONa7rujbzF4JLumcoh/o XST7ufhx3k38WES9fW4NMuAoACHeq4QDlaGrPtgZlbYNOe6nzSVzOCIJaFBFE8W4ChmL 7CvYRC99KSNpmVoUiDjoApvGXu2XuuzbEM3gv67vVApmVQZ+0uxkmXxhdY/U2Rf01G1/ 36TDxFFwG18jFv6r74DRsG68+UuUqrjXXtA3BQK6cNc8OhmkANpWZNNy4+opAys2ISV6 clktbDuNwnqfUBM+JgAPa7/gf5C3k50J2JprprCx6OVi5GNO2UivsyZ7Siuzr5Ukf5ev LHdw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to; bh=VfGyaLBlR0ldRUKt3S3RNr9J8hb8oo3RgtEYeiIYf14=; b=FaonsZY1iBIjogqjkjZTuzxM3iL0CnSvXl7pxi/l8+fY2ucUcLutm5B03hOZ6zbbTR z+PeIfgia3EWutngfWl77++oejxYGDafOyjoP+ajsX8aWEfySwL1BBopvvddA+nuEr3R jtWhKxGjJ5EYh0p5Oraw2Vzy9UYBO1lOTt8AnjeB2EFCSAU4FzUXB47pAS+7FZQ9x1Cg FMROkiFI0vz7Cf/8DLTHxj76jYci6t0CLBp+O1pL0WzYjqtGr4dcjDt/YWKmX2a+zDIV k5eg5J6qRmhmssd2vjzBDb48L/g89T73+HPuOQ9iMuqBo5R3k0w8+lbFBLjzbq6sK0MW mYQA== X-Gm-Message-State: AOAM530a8FVu7hncgBNVoBxrzC0M2IrfVSH6NtOotQAGUZqONvMatsuX hvnWOqCbPrikugFiTjEM9QKx8GjVafo/el0BX3/oLB8T X-Google-Smtp-Source: ABdhPJwZno+XYUvOj1UBfJVOyVP0fFuHnx+GPhFSaGOpjcZs6tddvdqZ9JSkbyFdEyYlWOIy7iAxZW2UchvyCUDALO0= X-Received: by 2002:a2e:8043:: with SMTP id p3mr604369ljg.469.1594852799927; Wed, 15 Jul 2020 15:39:59 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: Date: Wed, 15 Jul 2020 17:37:30 -0500 Message-ID: Subject: Re: [FlyRotary] Re: FW: [FlyRotary] Re: Aviation Specific 13B/20B Mazda Front Side Housing-pics To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary="0000000000009bda7c05aa829afa" --0000000000009bda7c05aa829afa Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Group, Link to a little "EYE Candy"............Expensive 20B all alloy buildup.......... https://www.youtube.com/watch?v=3DVvh04D7hiZo&feature=3Demb_rel_end Kelly Troyer On Wed, Jul 15, 2020 at 4:50 PM Kelly Troyer keltro@gmail.com < flyrotary@lancaironline.net> wrote: > Marc, > The footprint (gasket ) of the Renesis Rx8 front cover is almost the > same as the early 13B/20B front covers...........Their are some bolt > spacing differences that are easily programed into > the "Aircraft Specific Front housing" that we are trying to > produce............Mark Stietle (formally of this group but since passed) > adapted the RX8 Renesis water pump to his 20B powered > Lancair by cutting the water pump part of a Renesis from a front cover an= d > bolted it to his 20B.........One mounting bolt was not able to be > used.......He retained the original 20B front cover......... > I do not know how many flight hours Mark put on this water pump conversio= n > but it was still flying up until his passing.........If you are just > wanting to put the complete Renesis front cover on > a stock 13BREW or 20B front iron housing I am not sure if there would be > bolt bosses in the proper place......With an alloy front housing bolt > bosses can be located wherever we want them.. > Renesis front covers are readily available as are their water > pumps.......If you look into the Rotary Racing Crowd you will find turbo > versions of the Renesis......If anything the Renesis water > pump has a bigger heat load because of the exhaust exiting into the side > housings...........IMHO.........Hope this answers some of your > questions.......... > > Best, > Kelly Troyer > > On Wed, Jul 15, 2020 at 2:39 PM Marc Wiese cardmarc@charter.net < > flyrotary@lancaironline.net> wrote: > >> Kelly, >> >> I=E2=80=99m still in, but need to make sure what needs to change from a >> 13Brewtt/20B to mate up to a RX8 2004-2008 cover. And are they and their >> water pump still (more or less) available? Not sure the RX8 pump can han= dle >> the turbo variants=E2=80=A6=E2=80=A6=E2=80=A6=E2=80=A6=E2=80=A6=E2=80=A6= .might need options. >> >> M >> >> >> >> *From:* Rotary motors in aircraft >> *Sent:* Saturday, July 11, 2020 6:48 PM >> *To:* Rotary motors in aircraft >> *Subject:* [FlyRotary] Re: FW: [FlyRotary] Re: Aviation Specific 13B/20B >> Mazda Front Side Housing-pics >> >> >> >> Marc & Ernest, >> >> Ernest first.............Nothing available to buy at this time and n= o >> guarantee there will ever be..........Backplate / Mount is in CAD design >> stage...........The plate for a stock engine is not the >> problem..........There >> >> are several companies already producing alloy replacement side plates >> (For an all alloy 13B/20B)..........What we are try to do is produce a >> front sideplate (Firewall side in an aircraft) that incorporates the fou= r >> >> (4) mounting points that will allow the engine to be a "Bolt up" to the >> Lycoming O/IO 540 mount ring using "30 degree , Dyna 1" mount cushions a= s >> used by "Vans" RV10 and any other aircraft (Experimental) >> >> that normally use any of the several variations O/IO 540 >> engines..........As stated previously this mount ring is available (Just >> the Ring) from "Vans" currently for about $150.00.........I have already >> purchased >> >> two of these...........Let it be known that some Lycoming O/IO 540 >> engines used a "18 degree , Dyna 2" mount........We currently have no pl= ans >> to produce Blackplate / Mounts for the "Dyna 2" mount........The >> >> *"Mount Ears"* of The O-540 are bolted on to the crankcase and oil >> sump so the two different types (Dyna 1 & Dyna 2) are removable and >> replaceable......... >> >> >> >> Marc the bolt patterns for all the various front covers are virtuall= y >> the same with some slight variations in bolt spacing and the number of >> bolts..........We are currently planning on the use of the RX8 Renesis >> >> 2004-2008 front cover and water pump and it looks like it will fit withi= n >> the confines of the O/IO 540 mount ring by removing the alternator boss >> which stands on top of the water pump housing..............This will >> >> necessitate relocating the alternator..........This has not been worked >> out at this time.........The RX8 Renesis 2009-2011 front cover could be >> used also (We Think) but it is more complicated and incorporates the >> >> oil filter and we think a larger remote filter is a better >> option...........Also the current plan is to take oil directly from the = oil >> pump (As "Mistral" did) from the oil galley on the side of the front >> housing (Plugged on the >> >> stock side housing) directly to the oil filter and oil cooler instead of >> out the front cover (A weak point particularly in early covers at high o= il >> pressure).............As far as front covers it would be simple to order >> bolt >> >> spacing for what ever cover you want (*But) Here is the problem*........= .......The >> early water pump alloy housings and cast iron water pumps are not only >> heavy but they do not fit in the confines of the O/IO 540 >> >> mount ring and if the use of the 1986-1991 13B/20B ignition is planned w= e >> are not sure at this time if it would clear the mount ring ........That = is >> the reason for use of the RX8 Renesis front cover (which requires >> >> the use of a crankshaft trigger ignition).........We do not >> anticipate producing a plate to fit the RX8 Renesis engine so anything w= e >> produce will be only for the 13B/20B engines...........All good questio= ns >> and we >> >> are trying to come up with best solutions for several possible >> problems......... >> >> >> >> Just as a note of interest I have purchased a non airworthy (Junk) >> O-540 crankcase and currently have the "Vans" O-540 mount ring bolted to >> it........This was done so we could accurately place the Eccentric >> >> shaft centerline of the 13B/20B in the exact same place of the O-540 >> crankshaft centerline within the confines of the mount ring and judge ho= w >> everything will fit........... >> >> >> >> Best, >> >> Kelly Troyer >> >> >> >> On Sat, Jul 11, 2020 at 4:08 PM Marc Wiese cardmarc@charter.net < >> flyrotary@lancaironline.net> wrote: >> >> Just remember there must be an option on the bolt pattern, to fit the >> what?? The 13Brew tt, the Renesis, the 20B (only has the non-crankshaft >> trigger ign type distributor arrangement, and which was only offered in = the >> AT version), etc. I am not sure what the bolt differences are in them, b= ut >> I bet there are some! So what water pump and alternator provisions, as w= ell >> as the trigger/distributor needs to be made clear as to requirements. >> >> I think that place in Australia offers aluminum side housings, abeit wit= h >> some sort of embedded wear surface (??? important), and maybe others. I= =E2=80=99ve >> seen them offered before. >> >> >> >> Marc >> >> >> >> *From:* Rotary motors in aircraft >> *Sent:* Friday, July 10, 2020 10:25 PM >> *To:* Rotary motors in aircraft >> *Subject:* [FlyRotary] Re: FW: [FlyRotary] Re: Aviation Specific 13B/20B >> Mazda Front Side Housing-pics >> >> >> >> Charlie, >> >> After rereading your post I missed your point of using a "Mistral >> Type" bolt on housing to the Renesis iron plate............Now that is >> something that could be doable...........Just for your >> >> information my "Mistral" bolt on "Mount/Housing" will bolt on to the >> "Renesis" front iron housing..........I do not have a "Renesis" front >> housing in front of me but I believe it is a little thicker >> >> than a 13B/20B front housing because of the exhaust port..........This >> extra thickness would probably make modifications to the oil pump gear , >> spacers , and pulley stack necessary........ >> >> Something to investigate !!.......... >> >> Best >> >> Kelly Troyer >> >> >> >> On Fri, Jul 10, 2020 at 10:07 PM Kelly Troyer wrote: >> >> Charlie, >> >> Interesting point.........First question off the top of my head is how >> well would alloy Renesis side plates tolerate exhaust gas going through >> them and could stainless or inconel exhaust >> >> inserts as in the 13B/20B be put in them (cost being a factor also) >> ?.............All the aftermarket alloy side plates being produced to my >> knowledge are for the 13B/20B engines..........I >> >> suppose it could be done but as of now all the aftermarket auto >> performance people using alloy side plates use the 13B/20B >> platform...........Food for thought though......... >> >> >> >> Best >> >> Kelly Troyer >> >> >> >> On Fri, Jul 10, 2020 at 8:01 PM Charlie England ceengland7@gmail.com < >> flyrotary@lancaironline.net> wrote: >> >> Hi Kelly, >> >> I hate to muddy the waters, but I wonder how much interest there would b= e >> in a Renesis plate vs the 13B plate. My personal preference is to use th= e >> Renesis, for various reasons. My wish list would be for a Mistral-style >> accessory housing, but made for the Renesis. >> >> Do keep posting any updates, though. Like Todd said, any and all info is >> welcome. >> >> Charlie >> >> On 7/10/2020 6:33 PM, Kelly Troyer keltro@gmail.com wrote: >> >> Todd, >> >> Thanks for the comment and it is well received............Unless I >> hear otherwise from a majority of the group I will then keep all further >> discussion on the group forum...............As a further >> >> note if and when I acquire the mount/backplate under discussion I will >> probably add it to my "P" port 13BREW that I mentioned instead of the >> "Mistral" mount/housing that I have......I have >> >> a 20B but it would be seriously too much power and weight for my "Dyke >> Delta" even if the 20B were all alloy housings.......... >> >> >> >> Thanks Again, >> >> Kelly Troyer >> >> >> >> On Fri, Jul 10, 2020 at 5:55 PM Todd Bartrim bartrim@gmail.com < >> flyrotary@lancaironline.net> wrote: >> >> Hi Kelly; >> >> This mount idea is an excellent idea worth pursuing as a practical >> engine mount is a major roadblock to many builders that are otherwise >> considering alternative engines. >> >> While I'm not currently in the market for one myself, so I hadn't >> raised my hand to say "count me in", but the future could bring another >> project where I would be happy to have that availability of a ready to g= o >> engine mount. >> >> However I'd like to encourage you to keep all further discussion of >> this topic online. I'd much rather simply delete a conversation that I m= ay >> not have an interest in, than see the list with no discussion at all as >> we've seen all too often in the recent past. Any and all discussion >> pertaining to rotary powered aircraft helps to keep the list active and >> encouraging to other builders, as well as adding ideas to the archives. >> >> The archives have been a gold mine of info for me over the years, >> sometimes even reading my own comments to give me an insight as to "what >> the hell was I thinking" when I came up with some failed concept. But mo= re >> often than not as a source of info for more successful concepts. >> >> >> >> Todd >> >> C-FSTB >> >> RV9 13Bturbo >> >> >> >> On Fri., Jul. 10, 2020, 11:21 Kelly Troyer keltro@gmail.com, < >> flyrotary@lancaironline.net> wrote: >> >> Flyrotary Forum Members, >> >> I appreciate the response of all members to my posts >> regarding the possible production of an *"Aircraft Specific Alloy >> 13B/20B combination Engine mount/Side plate"* >> >> that would be a direct bolt in to a* Lycoming O/IO 540 "30 degree Dyna >> 1" engine mount ring.............. *There are several aftermarket >> companies currently producing all the alloy >> >> side housings that are necessary for an all alloy 13B/20B for the auto >> Racing crowd.........What we are trying to do is produce at this time is= a >> front side housing specifically designed >> >> with the proper mount points to be essentially bolt in to any aircraft >> that normally be powered by any of several versions of the Lycoming O/IO >> 540 engine..........The current plan is to >> >> use the RX8 Renesis front cover with its water pump and ignition pickup >> and retain the stock oil pump........This mount could also be used many >> other aircraft that normally would use >> >> the Lycoming O/IO 320-360 engines by using the Lycoming O/IO 540 mount >> ring (currently available from "Vans" for about $150.00) with a 13BREW >> engine (all alloy if wanted)........ >> >> >> >> This is a project that I have a personal interest in and at >> this time cannot report a time schedule for its completion.........I hav= e >> committed for the first "Beta" housing for testing >> >> and will keep the forum appraised of progress...........The forum is >> probably tired of me cluttering it up with this subject so for the time >> being any of the group that have an interest in >> >> this project or have any additional questions or concerns may E mail me >> directly if they choose..........Thanks for listening........... >> >> >> >> Best Regards >> >> Kelly Troyer >> >> >> >> >> >> On Thu, Jul 9, 2020 at 5:50 PM Kelly Troyer keltro@gmail.com < >> flyrotary@lancaironline.net> wrote: >> >> Guys, >> >> More info on the "Glasair 3" in Europe with "Mistral" 20 B based >> rotary engine......... >> >> >> >> https://www.kitplanes.com/more-mistral-magic/ >> >> >> >> Kelly Troyer >> >> >> >> On Thu, Jul 9, 2020 at 4:59 PM Kelly Troyer keltro@gmail.com < >> flyrotary@lancaironline.net> wrote: >> >> Lynn, >> >> Forgot to mention what the "Black" plate is.........."Mistrall" took >> oil from the normally plugged oil galley on the side of the front iron t= o a >> machined "O" ringed alloy plate that >> >> incorporated the oil filter and a "Vernitherm" (a Continental part I >> think) to bypass the oil cooler until oil temp got up to about 150 degr= ees >> F........I have this plate also.......... >> >> >> >> Kelly Troyer >> >> >> >> On Thu, Jul 9, 2020 at 4:43 PM Kelly Troyer keltro@gmail.com < >> flyrotary@lancaironline.net> wrote: >> >> Marc & Lynn >> >> Yes the photo of the "Mistral" 13B engine on the bench is like what m= y >> 13BREW will look like except it will have "Racing Beat" alloy center & r= ear >> housings and will be "P" ported........Their >> >> early 13B engines were based on the 1986-1991 models.............Yes Lyn= n >> this is the early mount scheme that combines the alloy mount casting and >> front cover into one unit that bolts to the >> >> front iron and incorporates the water pump and mount for the alternator >> plus the pickup for their electronic ignition..........It also had >> provisions for a drive for a vacuum pump.........I did not get >> >> the gears for this drive (less expense)(electric airplane) with my >> housing.........This casting mounts to a "Dynafocal Type 1" Lycoming O/I= O >> 320-360 mount ring......... >> >> >> >> Thanks, >> >> Kelly Troyer >> >> >> >> On Thu, Jul 9, 2020 at 1:31 PM lehanover lehanover@aol.com < >> flyrotary@lancaironline.net> wrote: >> >> In both pictures the mount appears to attach to the front iron. And to a >> cast oil pan and a plate bolted to the left side of the front iron (blac= k >> plate).............LEH >> >> >> >> In a message dated 7/9/2020 1:38:35 PM Eastern Standard Time, >> flyrotary@lancaironline.net writes: >> >> >> >> >> >> Great stuff. I saw and read that Kitplanes article with great interest >> back when. >> >> Here=E2=80=99s some conical mounting back plate pictures I found on my h= ard >> drive, I believe they are all Mistral, but don=E2=80=99t know where they= came from >> originally (perhaps Paul Lamar=E2=80=99s group) One is a 13B named =E2= =80=98Steve=E2=80=99. >> Hopefully these pics get thru-there is a picture limit on this list that >> makes it difficult to send larger files, so I didn=E2=80=99t send all of= them I >> have just of the backplate, what is the MB/KB limit here? >> >> Marc >> >> >> >> *From:* Rotary motors in aircraft >> *Sent:* Thursday, July 09, 2020 1:28 AM >> *To:* Rotary motors in aircraft >> *Subject:* [FlyRotary] Re: Aviation Specific 13B/20B Mazda Front Side >> Housing >> >> >> >> Le Roux, >> >> Thanks for digging this up as it will answer a lot of questions from >> the group..........This was the final iteration of "Mistrals" alloy side >> housing / accessory drive >> >> that was headed for US & European certification.........It incorporated >> the *"30 Degree/#1 Dyna Mount Ears"* for the Lycoming O/IO 540 engine >> mount..........This is >> >> what this thread is all about..........My friend is attempting to come u= p >> with a less expensive version of this plate but without all the >> accessory drives and using the >> >> stock RX 8 front cover with stock water pump and ignition pickup >> (electric airplanes)............Photos are worth a thousand words.......= ... >> >> Thanks Again, >> >> Kelly troyer >> >> >> >> On Thu, Jul 9, 2020 at 12:24 AM Le Roux Breytenbach >> breytenbachleroux@gmail.com wrote: >> >> Kelly : Just saw this on the archive on our group thread you post in >> April 2011 >> >> >> >> >> http://mail.lancaironline.net:81/Lists/flyrotary/Message/54713-02-B/MIST= RAL_%20FINAL%20BACKPLATE%20VERSION.jpg >> >> >> >> >> http://mail.lancaironline.net:81/Lists/flyrotary/Message/54713-03-B/MIST= RAL_FINAL%20RearPlate_drawing%20(Large).jpg >> >> >> >> >> >> >> >> >> Dating back to April 2011 that you have post regarding the Mistral >> mounting here you post some photos of the Mistral dynafocal set up and >> mounting >> >> Here is the article of Paul Janssens Glasair 111 >> >> >> >> https://www.kitplanes.com/mistral-magic/ >> >> >> >> Le Roux >> >> >> >> On Thu, Jul 9, 2020 at 6:35 AM Kelly Troyer keltro@gmail.com < >> flyrotary@lancaironline.net> wrote: >> >> Dave & Charlie, >> >> >> >> Only the early "Mistral" 13B/20B based engines used the bolt on fron= t >> cover/accessory drive alloy cover that had mount points that used the >> Lycoming O/IO 320-360 "Dynafocal Type 1" mount ring.........I know this >> >> as fact as I am the proud owner of one of these alloy housings.........I >> have all the housings and parts to build a bastardized part alloy "P por= t" >> 13BREW engine.........I retained the cast iron front (Rear in tractor A/= C) >> >> side housing because I was not comfortable having my engine hang on its >> mounts from a housing attached only by several 6 mm bolts threaded into = a >> cast alloy "Racing Beat" front side housing.........All the other >> >> housings (Center & Rear) are alloy "Racing Beat"..........The earliest >> "Mistral" 20B engines also used this alloy front cover but also had moun= t >> points at the redrive end of the engine (Essentially a Bed type Mount) a= nd >> >> only used the bottom two mount points on the accessory end of the >> engine.........At that point in "Mistral's" engine development the engin= es >> they sold to experimenters were basically "Mazda" engines and all their >> parts >> >> were directly adaptable to a stock "Mazda" engine (such as my >> engine)............The last iteration of their engines were designed to = be >> certifiable so they had to have a verifiable manufacturing >> trail..........So they made >> >> engineering changes in their parts to eliminate things about the stock >> "Mazda" parts that were not needed or were improvements for aircraft >> use..........Most of the last versions of their engines had parts that w= ere >> not >> >> adaptable to the stock "Mazda" engines...........Long winded but perhaps >> will enlighten some about the "Mistral" series of engines.......... >> >> >> >> Best, >> >> Kelly Troyer >> >> >> >> On Wed, Jul 8, 2020 at 10:45 PM Kelly Troyer wrote: >> >> Charlie and Mark, >> >> Yes Charlie the accessory "iron" side housing is what would be >> replaced with an aluminum housing with built in mount points that replic= ate >> the Lycoming O/IO 540 mount ears and locate the Mazda eccentric >> >> shaft centerline in the same place as the Lycoming crankshaft centerline >> and make the Mazda a bolt in to any aircraft using the O/IO 540 30 degre= e >> "Dyna1" mount system............. >> >> >> >> Mark I am well aware of the different opinions on using the rear >> dyna focal mount on the Mazda.........Bill is correct about the need for >> .500 in/12.5mm studs and a stiffening plate and/or rigid oil sump to >> >> further resistance to torsional twisting..........But remember that the >> O/IO 540 family of engines with firewall forward weights of 400+ to over >> 500 lbs for some turbo models are all using this mount system and >> >> that an all alloy 13B or 20B (even with reduction drive) will be much >> lighter..........I do not believe that the "Mistral" 13B or 20B used all= oy >> housings for other than the front accessory housing and I have never >> >> heard if they used the oversize .500 inch/12.5 mm studs in any of their >> engines..........This is probably a question that will have to be proven >> one way or another in actual use..........IMHO >> >> Best >> >> Kelly Troyer >> >> >> >> On Wed, Jul 8, 2020 at 5:49 PM Marcus Wiese cardmarc@charter.net < >> flyrotary@lancaironline.net> wrote: >> >> Wonder why Mistral used dynafocal type mounting on their 13b and 20b >> designs? >> >> M >> >> Sent from my iPad >> >> >> >> On Jul 8, 2020, at 12:11 PM, William Jepson wrjjrs@gmail.com < >> flyrotary@lancaironline.net> wrote: >> >> >> >> Kelly, >> >> The "dynafocal" type mount has been tried on the rotary but has not >> worked out well..One of the obvious rotary traits is that it has a hot a= nd >> cold side. Various methods have been used to limit this but there is no = way >> to eliminate it completely. Because of this the engine tends to "work" a= nd >> move around on the studs. Using the engine as a stressed member is not >> recommended with the rotary. If you were to do this anyway I wouldn't d= o >> it without a stud kit. You will have better results using a bed mount. Y= MMV >> >> Bill Jepson >> >> >> >> On Wed, Jul 8, 2020 at 1:18 AM Kelly Troyer keltro@gmail.com < >> flyrotary@lancaironline.net> wrote: >> >> *I am in contact with a person with the design and manufacturing **capab= ility >> to produce an **Aviation Specific 13B/20B Mazda Front Side Housing >> machined from 7075-T6* *with mount points that would allow these engines= * >> >> *to be a bolt in to the engine mount ring (30 degree number 1 Dyna) as >> used by the "Vans" RV-10 and other aircraft that use the Lycoming O/IO 5= 40 >> engine..........This side plate is in the preliminary design stage and a= t >> this* >> >> >> >> >> >> >> >> >> >> *point I am a go between to see if there would be any interest in this >> product if and when it is produced...........I personally am interested >> this side plate........As we on this forum know both the 13B / 20B are >> capable of trulyamazing power levels both naturally aspirated and turbo >> boosted.........The 20B would make the Van's RV-10 , Glasair 3 or Lancai= r's >> that use the Lycoming O/IO 540 an easy 300+ hp almost bolt in >> engine...........The "Reno" Sport Class "Glasairs" and Lancairs" are >> producing almost 400 mph speeds using dual turbo Lycoming IO-550 engines >> that are virtual hand grenades pulling over 700 hp...........There are >> turbo 20B's pulling1200 hp out in the auto racing world with good >> reliability..........A 20B boosted to 700+ hp is not even breathing >> hard.........IMHOWould like to hear what interest there may be in this >> product if and when it may be produced............Or any comments pro or >> con..............* >> >> >> >> >> >> Kelly Troyer >> >> >> >> >> >> >> >> >> >> >> > > -- > --=20 Kelly Troyer Dyke Delta_"Eventually" 13B_RD1C_EC2_EM2 --0000000000009bda7c05aa829afa Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Group,
=C2=A0 =C2=A0Link to a little = "EYE Candy"............Expensive 20B all alloy buildup..........<= /div>


<= div>Kelly Troyer

On Wed, Jul 15, 2020 at 4:50 PM Kelly Troyer keltro@gmail.com <flyrotary@lancaironline.net> wrote:
=C2=A0 Marc,
=C2=A0 =C2=A0The footprint (gasket ) of the Re= nesis Rx8 front cover is almost the same as the early 13B/20B front covers.= ..........Their are some bolt spacing differences that are easily programed= into=C2=A0
the "Aircraft Specific Front housing" that = we are trying to produce............Mark Stietle (formally of this group bu= t since passed) adapted the RX8 Renesis water pump=C2=A0to his 20B powered= =C2=A0
Lancair by cutting the water pump=C2=A0part of a Renesis f= rom a front cover and bolted it to his 20B.........One mounting bolt was no= t=C2=A0 able to be used.......He retained the original 20B front cover.....= ....
I do not know how many flight hours Mark put on this water p= ump conversion but it was still flying up until his passing.........If you = are just wanting to put the complete Renesis front cover on=C2=A0
a stock 13BREW or 20B front iron housing I am not sure if there would be b= olt bosses in the proper place......With an alloy front housing bolt bosses= can be located wherever=C2=A0we want them..
=C2=A0 Renesis front= covers are readily available as are their water pumps.......If you look in= to the Rotary Racing Crowd you will find turbo versions of the Renesis.....= .If anything the Renesis water=C2=A0
pump has a bigger heat load = because of the exhaust exiting into the side housings...........IMHO.......= ..Hope this answers some of your questions..........

Best,
Kelly Troyer=C2=A0

On Wed, Jul 15, 2020 at 2:39 PM = Marc Wiese cardma= rc@charter.net <flyrotary@lancaironline.net> wrote:

Kelly,

I=E2=80=99m still in, but need to make sure what nee= ds to change from a 13Brewtt/20B to mate up to a RX8 2004-2008 cover. And a= re they and their water pump still (more or less) available? Not sure the R= X8 pump can handle the turbo variants=E2=80=A6=E2=80=A6=E2=80=A6=E2=80=A6= =E2=80=A6=E2=80=A6.might need options.

M<= /u>

=C2=A0

From: Rotary motors in = aircraft
Sent: Saturday, July 11, 2020 6:48 PM
To: Rot= ary motors in aircraft <flyrotary@lancaironline.net>
Subject: [Fl= yRotary] Re: FW: [FlyRotary] Re: Aviation Specific 13B/20B Mazda Front Side= Housing-pics

=C2=A0

Marc & Ernest,<= /p>

=C2=A0 =C2=A0 Ernest=C2=A0first.............= Nothing available to buy at this time and no guarantee there will ever be..= ........Backplate / Mount is in CAD design stage...........The plate for a = stock engine is not the problem..........There

=

are several companies already producing alloy replac= ement side plates (For an all alloy 13B/20B)..........What we are try to do= is produce a front sideplate (Firewall side in an aircraft) that incorpora= tes the four

(4) mountin= g points that will allow the engine to be a "Bolt up" to the Lyco= ming O/IO 540 mount ring using "30 degree , Dyna 1" mount cushion= s as used by "Vans" RV10 and any other aircraft (Experimental)=

that normally=C2=A0use any= of the several variations O/IO 540 engines..........As stated previously t= his mount ring=C2=A0is available (Just the Ring) from "Vans" curr= ently for about $150.00.........I have already purchased=C2=A0

two of these...........Let it be kno= wn that some Lycoming O/IO 540 engines used a "18 degree , Dyna 2"= ; mount........We currently have no plans to produce Blackplate / Mounts fo= r the "Dyna 2" mount........The

"Mount Ears" of The O-540 are bolted on = to the crankcase and oil sump=C2=A0so the two different types (Dyna 1 &= Dyna 2) are=C2=A0removable and replaceable.........=C2=A0

=C2=A0

=C2=A0 =C2=A0 Marc the bolt patterns for all the various = front covers are virtually the same with some slight variations=C2=A0 in bo= lt spacing and the number of bolts..........We=C2=A0 are currently=C2=A0pla= nning on the use of the RX8 Renesis

2004-2008 front cover and water pump and it looks like it will = fit within the confines of the O/IO 540 mount ring by removing the alternat= or=C2=A0boss which stands on top of the water pump=C2=A0housing............= ..This will

necessitate = relocating the alternator..........This has not been worked out at this tim= e.........The RX8 Renesis 2009-2011 front cover could be used also (We Thin= k) but it is more complicated=C2=A0and incorporates the=C2=A0=

oil=C2=A0filter and we think a larger= remote filter is a better option...........Also the current plan is to tak= e oil directly=C2=A0from the oil pump (As "Mistral" did) from the= oil galley on the side of the front housing (Plugged=C2=A0on the=C2=A0<= /u>

stock side housing) directl= y to the oil filter=C2=A0and oil cooler instead of out the front=C2=A0cover= (A weak point particularly=C2=A0in early covers at high oil pressure).....= ........As far as front covers it would=C2=A0be simple to order bolt=C2=A0<= u>

spacing for what ever=C2= =A0cover you want (But) Here is the problem...............The early = water pump=C2=A0alloy housings and cast iron water pumps are not only heavy= but they do not fit in the confines of the O/IO 540

mount ring and if the use of the 1986-1991 13B= /20B ignition is planned we are not sure at this time if it would clear the= mount ring ........That is the reason for use of the RX8 Renesis front cov= er (which requires=C2=A0

the use of a crankshaft trigger ignition).........We do not anticipate=C2= =A0producing a plate to fit the RX8 Renesis engine so anything=C2=A0we prod= uce=C2=A0 will be only for the 13B/20B engines...........All good questions= and we=C2=A0

are trying= to come up with best solutions for several=C2=A0 possible problems........= .

=C2=A0

=C2=A0 Just as a note of interest I hav= e purchased a non airworthy (Junk)=C2=A0 O-540 crankcase and currently have= the "Vans" O-540 mount ring bolted to it........This was done so= we could accurately place the Eccentric

shaft centerline of the 13B/20B in the exact same place of= the O-540 crankshaft centerline within the confines of the mount ring and = judge how everything will fit...........=C2=A0 =C2=A0=C2=A0

=C2=A0

Best,

Kelly Troyer=C2=A0 =C2=A0 =C2=A0 =C2=A0

=C2=A0

= On Sat, Jul 11, 2020 at 4:08 PM Marc Wiese cardmarc@charter.net <flyrotary@lancaironline.net> wrote:

Just r= emember there must be an option on the bolt pattern, to fit the what?? The = 13Brew tt, the Renesis, the 20B (only has the non-crankshaft trigger ign ty= pe distributor arrangement, and which was only offered in the AT version), = etc. I am not sure what the bolt differences are in them, but I bet there a= re some! So what water pump and alternator provisions, as well as the trigg= er/distributor needs to be made clear as to requirements.<= /u>

I think that place in Australia offers aluminum side housings, abeit= with some sort of embedded wear surface (??? important), and maybe others.= I=E2=80=99ve seen them offered before.

=C2=A0

Marc

=C2=A0

From: Rotary motors in aircraft
Sent: Friday, July 1= 0, 2020 10:25 PM
To: Rotary motors in aircraft <flyrotary@lancaironline.= net>
Subject: [FlyRotary] Re: FW: [FlyRotary] Re: Aviation= Specific 13B/20B Mazda Front Side Housing-pics

=C2=A0

Charlie,

=C2=A0 =C2=A0 After = rereading your post I missed your point of using a "Mistral Type"= bolt on housing to the Renesis iron plate............Now that is something= that could=C2=A0be doable...........Just for your

<= div>

information=C2=A0my "Mistral" bolt on = "Mount/Housing" will bolt on to the "Renesis" front iro= n housing..........I do not have a "Renesis" front housing in fro= nt=C2=A0of me but I believe it is a little thicker

<= div>

than a 13B/20B front housing because of the exha= ust port..........This extra thickness would=C2=A0probably make modificatio= ns to the oil pump gear , spacers , and pulley stack necessary........

=C2=A0 Something to investig= ate !!..........

Best=

Kelly Troyer=C2=A0=C2=A0

=C2=A0

=

On Fri, Jul 10, 2020 at 10:07 PM Kelly Tro= yer <keltro@gmail.= com> wrote:

Charlie,

=C2=A0Interes= ting point.........First question off the top of my head is how well would = alloy Renesis side plates tolerate exhaust gas going through them and could= stainless or inconel exhaust

inserts as in the 13B/20B be put in them (cost being a factor also) ?= .............All the aftermarket alloy side plates being produced to my kno= wledge are for the 13B/20B engines..........I

<= p class=3D"MsoNormal">suppose=C2=A0it could be done but as of now all the a= ftermarket auto performance people using alloy side plates use the 13B/20B = platform...........Food for thought though.........

=

=C2=A0

Best=C2=A0

Ke= lly Troyer=C2=A0=C2=A0

= =C2=A0

On Fri, Jul 10, 20= 20 at 8:01 PM Charlie England ceengland7@gmail.com <flyrotary@lancaironline.net> wrote:<= u>

Hi Kelly,
I hate to muddy the waters, but I wonder how much interest there woul= d be in a Renesis plate vs the 13B plate. My personal preference is to use = the Renesis, for various reasons. My wish list would be for a Mistral-style= accessory housing, but made for the Renesis.

Do keep posting any up= dates, though. Like Todd said, any and all info is welcome.

Charlie<= br>
On 7/10/2020 6:33 PM, Kelly Troyer keltro@gmail.com wrote:

=C2=A0 Todd,

=C2=A0= =C2=A0 Thanks for the comment and it is well received............Unless I = hear otherwise from a majority of the group I will then keep all further di= scussion on the group forum...............As a further

note if and when I acquire the mount/backpla= te under discussion I will probably add it to my "P" port 13BREW = that I mentioned instead of the "Mistral" mount/housing that I ha= ve......I have=C2=A0

a 2= 0B but it would be seriously=C2=A0too much power and weight for my "Dy= ke Delta" even if the 20B were all alloy housings..........<= /u>

=C2=A0

Thanks Again,

Kelly Troyer

=C2=A0

On Fri, Jul 1= 0, 2020 at 5:55 PM Todd Bartrim bartrim@gmail.com <flyrotary@lancaironline.net> wrote:

Hi Kelly;

=C2=A0 =C2=A0This mount idea is an= excellent idea worth pursuing as a practical engine mount is a major roadb= lock to many builders that are otherwise considering alternative engines.

=C2=A0 While I'm not = currently in the market for one myself, so I hadn't raised my hand to s= ay "count me in", but the future could bring another project wher= e I would be happy to have that availability of a ready to go engine mount.=

=C2=A0 =C2=A0However I&= #39;d like to encourage you to keep all further discussion of this topic on= line. I'd much rather simply delete a conversation that I may not have = an interest in, than see the list with no discussion at all as we've se= en all too often in the recent past. Any and all discussion pertaining to r= otary powered aircraft helps to keep the list active and encouraging to oth= er builders, as well as adding ideas to the archives.

=C2=A0 The archives have been a gold mine of = info for me over the years, sometimes even reading my own comments to give = me an insight as to "what the hell was I thinking" when I came up= with some failed concept. But more often than not as a source of info for = more successful concepts.

=C2=A0

Todd<= /u>

C-FSTB

RV9 13Bturbo

=C2=A0

On = Fri., Jul. 10, 2020, 11:21 Kelly Troyer keltro@gmail.com, <flyrotary@lancaironline.net> wrot= e:

Fly= rotary=C2=A0Forum Members,=C2=A0=C2=A0

=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0I appreciate=C2= =A0the response of all members to my posts regarding the possible productio= n of an "Aircraft Specific Alloy 13B/20B combination Engine mount/S= ide plate"

that= would be a direct bolt in to a Lycoming O/IO 540 "30 degree Dyna 1= " engine mount ring.............. There are several aftermarket co= mpanies currently producing all the alloy

side housings that are necessary=C2=A0for an all a= lloy 13B/20B for the auto Racing crowd.........What we are trying to do is = produce at this time is a front side housing specifically designed

with the proper mount points to = be essentially bolt in to any aircraft that normally be powered by any of s= everal=C2=A0versions of the Lycoming O/IO 540 engine..........The current p= lan is to

use the RX8 Re= nesis front cover with its water pump and ignition=C2=A0pickup and retain t= he stock oil pump........This mount could also be used many other aircraft= =C2=A0that normally would use=C2=A0

the Lycoming O/IO 320-360 engines by using the Lycoming O/IO 54= 0 mount ring (currently available from "Vans" for about $150.00) = with a 13BREW engine (all alloy if wanted)........=C2=A0

<= /div>

=C2=A0

=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 This is a project= that I have a personal interest in and at this time cannot report a time s= chedule for its completion.........I have committed for the first "Bet= a" housing for testing=C2=A0

and will keep the forum appraised of progress...........The forum= is probably tired of me cluttering it up with this subject so for the time= being any of the group that have an interest in

this project or have any additional questions or c= oncerns may E=C2=A0mail=C2=A0me directly if they choose..........Thanks for= listening...........

= =C2=A0

Best Regards

Kelly Troyer=C2=A0 =C2=A0 = =C2=A0 =C2=A0=C2=A0

=C2= =A0

=C2=A0

On Thu, Jul 9, 2020 at 5:50 PM Kelly = Troyer keltro@gmail.c= om <flyrotary@lancaironline.net> wrote:

Guys,

=C2=A0 =C2=A0 More info on the "Glasair 3" in Europe wi= th "Mistral" 20 B based rotary engine.........

<= /div>

=C2=A0

=C2=A0=

Kelly Troyer

<= /div>

=C2=A0

On Thu, Jul 9, 2020 at 4:59 PM Kelly Troyer keltro@gmail.com <flyrotary@lancaironline.net= > wrote:

Lynn,

=C2=A0 =C2=A0= Forgot to mention what the "Black" plate is.........."Mistr= all" took oil from the normally plugged oil galley on the side of the = front iron to a machined "O" ringed alloy plate that

incorporated the oil filter and a &q= uot;Vernitherm" (a Continental part I think)=C2=A0 to bypass the oil= =C2=A0cooler until=C2=A0oil temp got up to about 150 degrees F........I hav= e this plate also..........

=C2=A0

Kelly Troyer<= u>

=C2=A0

On Thu, Jul 9, 2020 at 4:43 PM Kelly Troy= er keltro@gmail.com <fly= rotary@lancaironline.net> wrote:

Marc & Lynn

=C2=A0 =C2=A0Yes the photo of the "Mistral" 13B e= ngine on the bench is like what my 13BREW will look like=C2=A0except it wil= l have "Racing Beat" alloy center & rear housings and will be= "P" ported........Their

early 13B engines were based on the 1986-1991 models............= .Yes Lynn this is the early mount scheme that combines the alloy mount cast= ing and front cover into one unit that bolts to the=C2=A0

=

front iron and incorporates the water pum= p=C2=A0and mount for the alternator plus the pickup for their electronic ig= nition..........It also had provisions for a drive for a vacuum=C2=A0pump..= .......I did not get

the= gears for this drive (less expense)(electric airplane) with my housing....= .....This casting mounts to a "Dynafocal=C2=A0Type 1" Lycoming O/= IO 320-360 mount ring.........

=C2=A0

Thanks,=

Kelly Troyer=

=C2=A0

On Thu, Jul 9, 2020 at 1:31 PM lehanover lehanover@aol.com <flyrotary@lancair= online.net> wrote:

In both pictures the mount appears to attach to the front = iron. And to a cast oil pan and a plate bolted to the left side of the fron= t iron (black plate).............LEH

=C2=A0

In a message dated 7/9/2020 1:38:35 PM Eastern Standard Time, flyrotary@lanca= ironline.net writes:

=C2= =A0

=C2=A0

Great stuff. I saw and read that Kitplanes artic= le with great interest back when.

Here=E2=80=99s some conical mounting = back plate pictures I found on my hard drive, I believe they are all Mistra= l, but don=E2=80=99t know where they came from originally (perhaps Paul Lam= ar=E2=80=99s group) One is a 13B named =E2=80=98Steve=E2=80=99. Hopefully t= hese pics get thru-there is a picture limit on this list that makes it diff= icult to send larger files, so I didn=E2=80=99t send all of them I have jus= t of the backplate, what is the MB/KB limit here?

<= p>Marc=

=C2=A0

<= strong>From:= Rotary motors in aircraft
Sent: Thursday, July 09, 2020 1:28 AM
To: Rotary = motors in aircraft <flyrotary@lancaironline.net>
Subject: [FlyRotary] Re: Av= iation Specific 13B/20B Mazda Front Side Housing

= =C2=A0

Le Roux,

=C2= =A0 =C2=A0 Thanks for digging=C2=A0this up as it will answer a lot of quest= ions from the group..........This was the final iteration of "Mistrals= " alloy side housing / accessory drive

= that was headed for US & European certification.........It incorporated= the "30 Degree= /#1 Dyna Mount Ears" for the Lycoming O/IO 540 engine = mount..........This is

what this thread is a= ll about..........My friend is attempting=C2=A0to come up with a less expen= sive version of this=C2=A0plate but without all the accessory=C2=A0drives a= nd using the

stock RX 8 front cover with sto= ck water pump and ignition pickup (electric airplanes)............Photos ar= e worth a thousand words..........

Thanks Ag= ain,

Kelly troyer=C2=A0

=C2=A0

On Thu, Jul 9, 2020 at 12:= 24 AM Le Roux Breytenbach breytenbachleroux@gmail.com <flyrotary@lancaironline.net&g= t; wrote:

Kelly : Just saw this= on the archive on our group thread you post in April 2011

=C2=A0

=C2=A0

<= p>=C2=A0

Dating back to April 2011 that you = have post regarding the Mistral mounting here you post some photos of the M= istral dynafocal set up and mounting

Here is= the article of Paul Janssens Glasair 111

= =C2=A0

=C2=A0

= =C2=A0 Dave & Charlie,

=C2=A0<= /u>

=C2=A0 =C2=A0 Only the early "Mistral" 13B/2= 0B based engines used=C2=A0the bolt on front cover/accessory drive alloy co= ver that had mount points that used the Lycoming=C2=A0O/IO 320-360 "Dy= nafocal Type 1" mount ring.........I know this

=

as fact as I am the proud owner of one of these alloy housings.....= ....I have all the housings and parts to build a bastardized part alloy &qu= ot;P port" 13BREW engine.........I retained the cast iron front (Rear = in tractor A/C)

side housing because I was n= ot comfortable having my engine hang on its mounts from a housing attached = only by several 6 mm bolts threaded=C2=A0into a cast alloy "Racing Bea= t" front side housing.........All the other

housings (Center & Rear) are alloy "Racing Beat"........= ..The earliest "Mistral" 20B engines also used this alloy front c= over but also had mount points at the redrive end of the engine (Essentiall= y a Bed type Mount) and

only used the bottom= two mount points on the accessory end of the engine.........At that=C2=A0p= oint in "Mistral's" engine development the engines they sold = to experimenters were basically "Mazda" engines and all their par= ts

were directly adaptable to a stock "= Mazda" engine (such as my engine)............The last iteration of the= ir engines were designed=C2=A0to be certifiable so they had to have a verif= iable=C2=A0manufacturing trail..........So they made

engineering changes in their parts to eliminate things about the s= tock "Mazda" parts that were=C2=A0not needed or were improvements= for aircraft use..........Most of the last versions of their engines had p= arts that were not

adaptable to the stock &q= uot;Mazda" engines...........Long winded but perhaps will enlighten so= me about the "Mistral" series of engines..........<= /p>

=C2=A0

Best,<= /p>

Kelly Troyer=C2=A0 =C2=A0

=C2=A0=

On Wed, Jul 8, 2020 at 10:45 PM Kelly Troyer= <keltro@gmail.com= > wrote:

Charlie an= d Mark,

=C2=A0 =C2=A0 =C2=A0Yes Charlie the = accessory=C2=A0"iron"=C2=A0side housing is what would be replaced= with an aluminum housing with built in mount points that replicate the Lyc= oming O/IO 540 mount ears and locate the Mazda eccentric

<= /div>

shaft centerline in the same place as the Lycoming crankshaft = centerline and make the Mazda a bolt in to any aircraft using=C2=A0the O/IO= 540 30 degree "Dyna1" mount system.............

=C2=A0

=C2=A0 =C2=A0 =C2=A0Ma= rk I am well aware of the different opinions on using the rear dyna focal m= ount on the Mazda.........Bill is correct about the need for .500 in/12.5mm= studs and a stiffening plate and/or rigid oil sump to

further resistance to torsional twisting..........But remember t= hat the O/IO 540 family of engines with firewall forward weights of 400+ to= over 500 lbs for some turbo models are all using this mount system and<= /u>

that an all alloy 13B or 20B (even with reducti= on drive) will be much lighter..........I do not believe that the "Mis= tral" 13B or 20B used alloy housings for other than the front accessor= y housing and I have never

heard if they use= d the oversize .500 inch/12.5 mm studs in any of their engines..........Thi= s is probably a question that will have to be proven one way or another in = actual use..........IMHO

Best<= /p>

Kelly Troyer

=C2=A0

On Wed, Jul 8, 2020 at 5:49 PM Marcus Wiese cardmarc@charter.net <<= a href=3D"mailto:flyrotary@lancaironline.net" target=3D"_blank">flyrotary@l= ancaironline.net> wrote:

Wonder why Mistral used dynafocal type mounting on their 13b and 20b desig= ns?

M

Sent from my iPad

=C2=A0

On Jul 8, 2020, at 12:11 P= M, William Jepson wrj= jrs@gmail.com <flyrotary@lancaironline.net> wrote:

=C2=A0

Kelly,

The &qu= ot;dynafocal" type mount has been tried on the rotary but has not work= ed out well..One of the obvious rotary traits is that it has a hot and cold= side. Various methods have been used to limit this but there is no way to = eliminate it completely. Because of this the engine tends to "work&quo= t; and move around on the studs. Using the engine as a stressed member is n= ot recommended with the rotary. If=C2=A0 you were to do this anyway I would= n't do it without a stud kit. You will have better results=C2=A0using a= bed mount. YMMV

Bill Jepson

=C2=A0

On Wed, Jul 8, 2020 a= t 1:18 AM Kelly Troyer keltro@gmail.com <flyrotary@lancaironline.net> wrote:

I am in contact with a person with the des= ign and manufacturing=C2=A0capability to produce an= =C2=A0Aviation Specific 13B/20B Mazda Front Side=C2=A0H= ousing machined from 7075-T6=C2=A0wit= h mount points that=C2=A0would allow these engines

<= strong>to be a bolt in to th= e engine mount ring (30 degree number 1 Dyna) as used by the "Vans&quo= t; RV-10 and other aircraft that use the Lycoming O/IO 540 engine..........= This side plate is in the preliminary design stage and at this

point = I am a go between to see if there would be any interest in this product if = and when it is=C2=A0produced...........I personally am interested this side= plate........As we on this forum know both the 13B / 20B are capable of tr= uly

amazing power levels both naturally aspirated and turbo boosted.....= ....The 20B would make the Van's RV-10 , Glasair 3 or Lancair's tha= t use the Lycoming O/IO 540 an easy 300+ hp almost bolt in engine..........= .

The "Reno" Sport Class "Glasairs" and Lancairs&quo= t; are producing almost 400 mph speeds using dual turbo Lycoming IO-550 eng= ines that are virtual hand grenades pulling over 700 hp...........There are= turbo 20B's pulling

1200 hp out in the auto racing world with good = reliability..........A 20B boosted to 700+ hp is not even breathing hard...= ......IMHO

Would like to hear what interest there may be in this product= if and when it may be produced............Or any comments pro or con......= ........=C2=A0=C2=A0

= =C2=A0

=C2=A0

Kelly Troyer

<= /div>
<= /div>
<= /div>


=C2=A0

=C2=A0<= /u>

=C2=A0

=C2=A0

<= /div>


--=C2=A0


--
Kelly Troyer
Dyke Delta_"Eventually"= ;
13B_RD1C_EC2_EM2
--0000000000009bda7c05aa829afa--