X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from qw-out-2122.google.com ([74.125.92.26] verified) by logan.com (CommuniGate Pro SMTP 5.2.13) with ESMTP id 3567988 for flyrotary@lancaironline.net; Thu, 02 Apr 2009 11:06:47 -0400 Received-SPF: pass receiver=logan.com; client-ip=74.125.92.26; envelope-from=rwstracy@gmail.com Received: by qw-out-2122.google.com with SMTP id 3so441839qwe.25 for ; Thu, 02 Apr 2009 08:06:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:sender:received:in-reply-to :references:date:x-google-sender-auth:message-id:subject:from:to :content-type; bh=6oZX58N9EJujOURT2hAE3J8qvZx7swQpqPJ0UzCcRyE=; b=bfI2y0hs+CDMT0J3bpMEl4nkdX6+JPweCyWu/7wqG8vMMqH9HFAeIdyuzgFieHHaFN FbsPLfF9YUQdhrMfqLrRVyh2kXpp+JV433bZzGhG46cXyvr3HlYcmyj5N7Pho4DeiDMU NwQPIhfQIvnNDBkyTnkdqwkEt0pdDpworxe24= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:content-type; b=gKYKEIpNypRZSTT+nbPN5PJh5HG7q/DbLhpS/vDPJPIey5qlHBYhjZxzbUE2VdVTQs Q6mKYvSYUKsH9zxJZVCIvhjpPaFskm1daGIfP/g+HHb2HZ/Zy1Q66CPy1i+4Q9znhpe1 taYFg21mKgRrZ8ToIqiuqJJna/maCbceWSxfs= MIME-Version: 1.0 Sender: rwstracy@gmail.com Received: by 10.224.6.83 with SMTP id 19mr192299qay.242.1238684770235; Thu, 02 Apr 2009 08:06:10 -0700 (PDT) In-Reply-To: References: Date: Thu, 2 Apr 2009 11:06:10 -0400 X-Google-Sender-Auth: 72f0237a574fc169 Message-ID: <1b4b137c0904020806i865482cq3a55f6f0443bc69c@mail.gmail.com> Subject: Re: [FlyRotary] Re: 20B mated to RV-10 From: Tracy Crook To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary=0015175cdc0eb7f5f6046693c5f9 --0015175cdc0eb7f5f6046693c5f9 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Wow, Forward CG on an RV-10 with a Renesis? I'm flabergasted! Unless your engine CG WAY forward of where the stock O - 540 is mounted I don't understand how you got there, even with the supercharger. My RV-8 with a * 20B* is turning out *tail* heavy! Like Ed said, Pay attention to those ounces during construction. They turn into 100 pounds when its finished :>) Tracy 2009/4/1 Bobby J. Hughes > Phil, > > Just as a reference my Renesis RV10 came out with a forward CG. Added 13 > lbs of tail ballast until I can relocate one battery after phase 1. With > the ballast N416AS matches Van's factory RV10. Firewall to prop flange > is 47", with a 2.25" cowl spacing. The MT prop is 39lbs. The super > charger is about 25 lbs with mounts. Two radiators, oil/ water exchanger > and two batteries are on the firewall. I also have a full interior and > IFR stack. > > If I was mounting a 20B I would stick with 47-48" to prop flange and > move one or both batteries to the standard position. Radiator placement > with coolant and prop weight would need to be considered. > > > Extreme Composite's > http://www.extremecomposites.com/aircraftparts.htmlhas the molds for my > cowl. The mold was made to accommodate 53.25" to 49.25" from prop to > firewall. Spinner is 15". They also make the cowls and 15" spinners for > the F1 rocket. The upper and lower parts are just shells so inlets can > be added as needed. Talk to Jimmy if your interested. The cowl was a lot > more work then I anticipated. > > I have two 400ci radiators with an oil to water exchanger plumbed > between them. No issues with ground cooling during extended runs. > > Bobby > (wondering how my plane gained 100 pounds) > > > -----Original Message----- > From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On > Behalf Of Phil White > Sent: Wednesday, April 01, 2009 7:03 PM > To: Rotary motors in aircraft > Subject: [FlyRotary] 20B mated to RV-10 > > After much head scratching, I have managed to attach my 20B to my RV-10. > I kept the Lyc dynafocal mount, in case I fail in making the rotary work > satisfactorily, or if I need to sell to some cretan who doesn't believe > in engines with only 4 moving parts. I managed to get the prop flange > within 1/4" vert and 1/2" horiz of where I wanted it, tho it is 51" from > the firewall compared to the stock location of 43". > Guess I get to build a sleek turbine-look cowling! > > If anyone with a proven cooling system design for the 20B can > provide radiator sizes and source(s), it would be most welcome. > > Phil White > > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: > http://mail.lancaironline.net:81/lists/flyrotary/List.html > > --0015175cdc0eb7f5f6046693c5f9 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Wow,=A0 Forward CG on an RV-10 with a Renesis?=A0=A0=A0 I'm flabergaste= d! Unless your engine CG=A0 WAY forward of where the stock O - 540 is mount= ed I don't understand how you got there, even with the supercharger.=A0= =A0 My RV-8 with a 20B is turning out tail heavy!=A0

Like Ed said, Pay attention to those ounces during construction.=A0=A0= =A0 They turn into 100 pounds when its finished :>)

Tracy

=
2009/4/1 Bobby J. Hughes <<= a href=3D"mailto:bhughes@qnsi.net">bhughes@qnsi.net>
Phil,

Just as a reference my Renesis RV10 came out with a forward CG. Added 13 lbs of tail ballast until I can relocate one battery after phase 1. With the ballast N416AS matches Van's factory RV10. Firewall to prop flange<= br> is 47", with a 2.25" cowl spacing. The MT prop is 39lbs. The supe= r
charger is about 25 lbs with mounts. Two radiators, oil/ water exchanger and two batteries are on the firewall. I also have a full interior and
IFR stack.

If I was mounting a 20B I would stick with 47-48" to prop flange and move one or both batteries to the standard position. Radiator placement
with coolant and prop weight would need to be considered.


Extreme Composite's
http://www.extremecomposites.com/aircraftparts.htmlhas the = molds for my
cowl. The mold was made to accommodate 53.25" to 49.25" from prop= to
firewall. Spinner is 15". They also make the cowls and 15" spinne= rs for
the F1 rocket. The upper and lower parts are just shells so inlets can
be added as needed. Talk to Jimmy if your interested. The cowl was a lot more work then I anticipated.

I have two 400ci radiators with an oil to water exchanger plumbed
between them. No issues with ground cooling during extended runs.

Bobby
(wondering how my plane gained 100 pounds)


-----Original Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On
Behalf Of Phil White
Sent: Wednesday, April 01, 2009 7:03 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] 20B mated to RV-10

After much head scratching, I have managed to attach my 20B to my RV-10. I kept the Lyc dynafocal mount, in case I fail in making the rotary work satisfactorily, or if I need to sell to some cretan who doesn't believe=
in engines with only 4 moving parts. =A0I managed to get the prop flange within 1/4" vert and 1/2" horiz of where I wanted it, tho it is 5= 1" from
the firewall compared to the stock location of 43".
Guess I get to build a sleek turbine-look cowling!

=A0 =A0If anyone with a proven cooling system design for the 20B can
provide radiator sizes and source(s), it would be most welcome.

Phil White

--
Homepage: =A0http:/= /www.flyrotary.com/
Archive and UnSub: =A0 http://mail.lancaironline.net:81/lists= /flyrotary/List.html


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