X-Junk-Score: 0 [] X-Cloudmark-Score: 0 [] X-Cloudmark-Analysis: v=2.2 cv=No+TSIVJ c=1 sm=1 tr=0 a=qClb9Ql7wM4GXenlcXDlgg==:117 a=+RMWgKEoAmvAU9SO+WtW8Q==:17 a=x7bEGLp0ZPQA:10 a=A-0mRrAPPO4A:10 a=3JhidrIBZZsA:10 a=pGLkceISAAAA:8 a=Ia-xEzejAAAA:8 a=vggBfdFIAAAA:8 a=4LZCcvUXAAAA:8 a=wrnlkVK_AAAA:8 a=7g1VtSJxAAAA:8 a=HLElNSDFAAAA:8 a=N4BA22dSAAAA:8 a=_6GpL_ENAAAA:8 a=LkI7K-JoyZZ_pfAhk7wA:9 a=UWG0R6-2BItINd0d:21 a=vAuSPxq24utJ7fZA:21 a=QEXdDO2ut3YA:10 a=jpqcyI-gQgoA:10 a=Qa1je4BO31QA:10 a=izEWSWqvyK8A:10 a=KqsoOQp8tHIA:10 a=ooph3NpzJo8A:10 a=gvSQh4r-fQ0A:10 a=4PR2P7QzAAAA:8 a=tEArh1PlBcvXwkkeGFYA:9 a=lDNl2lIEhZKvKMjIUR5gOGDH5rM=:19 a=RWdJW0Rgh_s-21MB:21 a=z6cEIi4XP7akVDlT:21 a=pVAgWjhLSe3IDvKV:21 a=_W_S_7VecoQA:10 a=Urk15JJjZg1Xo0ryW_k8:22 a=TRfWRy4FXhQwmuKf2c8o:22 a=ABpvz31vvg_prsUBKvxG:22 a=grOzbf7U_OpcSX4AJOnl:22 a=NTybjnMHmzLOwcLJc94Q:22 a=DfVtRexSPdyR86Qi2_78:22 a=4dqwQCo7Po2mVW515mGf:22 From: "Charlie England ceengland7@gmail.com" Received: from mail-yb1-f174.google.com ([209.85.219.174] verified) by logan.com (CommuniGate Pro SMTP 6.2.10) with ESMTPS id 12077459 for flyrotary@lancaironline.net; Mon, 07 Jan 2019 11:12:24 -0500 Received-SPF: pass receiver=logan.com; client-ip=209.85.219.174; envelope-from=ceengland7@gmail.com Received: by mail-yb1-f174.google.com with SMTP id o73so362529ybc.0 for ; Mon, 07 Jan 2019 08:12:24 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=in-reply-to:references:thread-topic:user-agent:mime-version :content-transfer-encoding:subject:from:date:to:message-id; bh=6xCsC0WfOc0GCmT8c7Eu/oalnMLf1S6dDlz5rHcfi1A=; b=qUix7J34J/ixnQtahgyxlfEO23cT+4FQkOOHJQ5qIseJxYRPRHUlRVXSQdWwSkOIWY G0uLzuudyqhbHUJOWhFzVg/VrZgDZP6tQCpyEC6OFZSmBpSDqS8vpekg43jN8rXiAEoc U/XAL3q+gqn4YJANXYLPweuBt4d65o0qs0CDZRHLuKFC9IUqNPrSzcFvFbXHVzSwD0eV N4RIH6SyHqTUD7I/2NAZUhwnap7kmtDqkiOb/2pMonJhdRqG1QVsVuzDpxaG3tJpaSFN WlFTn+Tnj7fxopkHo329lUKhUjqbKi8amTlrAtv+xCUlBxnrOzTmPBbbZhmarY5xqwV4 Ltdw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:in-reply-to:references:thread-topic:user-agent :mime-version:content-transfer-encoding:subject:from:date:to :message-id; bh=6xCsC0WfOc0GCmT8c7Eu/oalnMLf1S6dDlz5rHcfi1A=; b=l4ZCbBBasWBIFqSHEEn4zUvaMR9u51iq4leGEZFQM6eJklnRHmwmpIIPJJE05yDFAO i1FTWJXUtslMdSymQBBFAOHmOkNyx14voEEOKv3eEOBAHw5HE3Fx/rTSiRWoMLcxombz pXyvUYMOHRALcU9Qs/+ZnocKECs/3Eu6Y+fcOR5kcmJVOjmkWtDVfl3u9QNe+rbtEPfN sIgQUaFRaWhQBCY51fLleH7JGHy5AzTezZCW73VrLR1wRTrO8mM+7IGHHEHzlTPqpTZD wb6+SyOQo7bpnicLp84EU0TI7H3ElEnyCDzc9gc3qs2EiKhHPTlBb1GP7QUMWoZTjRgu Ry4Q== X-Gm-Message-State: AJcUukdP818X9kkh6j5ICH2YJeVHtvmpGz1jv98+pY7hv4NM/OyoZt0q Oxfw8MBRRwjkIarPjfRHejP1/caK X-Google-Smtp-Source: AFSGD/U7JBuIPPdQ9YRRiXdfu8I0WspqNutXZyWj8FSA3XUrR3WvlmehFHxvHYUzdd9OtmSXC5uN5A== X-Received: by 2002:a25:cb4e:: with SMTP id b75mr63377526ybg.362.1546877525798; Mon, 07 Jan 2019 08:12:05 -0800 (PST) Return-Path: Received: from [10.200.25.77] ([76.8.245.162]) by smtp.gmail.com with ESMTPSA id n16sm27715919ywn.31.2019.01.07.08.12.04 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 07 Jan 2019 08:12:05 -0800 (PST) In-Reply-To: References: X-Referenced-Uid: 40520 Thread-Topic: [FlyRotary] Re: Exhaust setup's User-Agent: Android X-Is-Generated-Message-Id: true MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----P9CYTO4YCHGN7AMDQV3KWUH1YM626O" Content-Transfer-Encoding: 7bit X-Local-Message-Id: <1f769e8a-59d8-4237-94e8-b7aa08f3c003@gmail.com> Subject: Re: [FlyRotary] Re: Exhaust setup's Date: Mon, 07 Jan 2019 10:11:48 -0600 To: Rotary motors in aircraft Message-ID: <1f769e8a-59d8-4237-94e8-b7aa08f3c003@gmail.com> ------P9CYTO4YCHGN7AMDQV3KWUH1YM626O Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=UTF-8 That's the idea; a big, smoothly curved transition to the exit point, with = the exhaust firing through it=2E The extra pipe is likely just extra drag (= and extra weight)=2E =E2=81=A3Charlie=E2=80=8B On Jan 6, 2019, 10:35 PM,= at 10:35 PM, "Matt Boiteau mattboiteau@gmail=2Ecom" wrote: >That's pretty interesting idea, to end the exhaust short = and shoot it >into a larger (eductor) pipe with a bellmouth on the front=2E= I'm >wondering if I even need a larger pipe, or would the inside of the >s= ubcowl act as the pipe? SO much to think about=2E Add some Fiberfrax and >t= his heat barrier, and you can good over 2000F easy=2E >https://www=2Eamazon= =2Ecom/gp/product/B00029KC2K/ref=3Dox_sc_saved_title_1?smid=3DATVPDKIKX0DER= &psc=3D1 > >I think I'll secure the pipe as it comes past the firewall, and= allow a >slip joint that I'll be able to test a whole bunch of different >= configurations=2E For now, I just need to get the dam thing flying=2E lol= =2E >Have to stop changing things and stick to a plan=2E > >I'm good with e= lectronics, so I'll be building a remote bluetooth >device that will have a= bunch of air temp, EGT probes & pressure >sensors on it=2E Maybe even a ca= mera if I can figure that one out=2E Be >able to data log all these differe= nt ideas=2E > >- Matt Boiteau >On 1/6/2019 5:11:40 PM, Charlie England ceen= gland7@gmail=2Ecom > wrote: >There's a Lanca= ir guy and a Mustang II guy who both post fairly often >on the list=2E I'm = sure you'd survive, as long as the subject can be tied >to RVs in some way= =2E > >Did you compare the outside shape of your 'afterbody' to Vetterman's= ? >His is much more of a convex 'egg' shape=2E Have you tried to tuft test = >yours? I'm thinking about the horizontal equivalent of what's happening >i= n the vertical plane in the video in that 2nd thread=2E > >The eductors I'v= e seen seem to have much shorter ducts, and the exhaust >energizes the duct= by shooting into it, rather than being submerged in >it=2E I just found th= is site, which looks closer to what I was thinking=2E >http://nickugolini= =2Ecom/website/Eductor=2Ehtml >[http://nickugolini=2Ecom/website/Eductor=2E= html] >The super high velocity exhaust stream is pretty potent in dragging = >cooling air along with it, without the drag of all those small holes=2E >A= nother example is what was once the world's fasted RV-6, that had the >pipe= cut just an inch or so inside the cooling outlet (just forward of >the fir= ewall)=2E I talked to the builder at SNF; he described cutting the >pipes a= half inch at a time, trying to tune for power=2E when he got to >the exit,= he decided to 'gamble' on shortening them one more time where >they'd exit= inside the cowl, and he saw an improvement in oil cooling >after the cut= =2E > >Charlie > >On 1/6/2019 11:59 AM, Matt Boiteau mattboiteau@gmail=2Eco= m >[mailto:mattboiteau@gmail=2Ecom] wrote: > >Thanks guys=2E I browse the R= V forum religiously, there is so much good >information on there=2E I did c= ome across and save a lot of posts from >DanH but not the second one you me= ntioned Charlie=2E I don't know how >they feel, if I post stuff on there wi= thout being an RV owner? The >subcowl I fiberglassed, is the back half shap= e of a tear drop=2E Much >like the Vetterman setup=2E Should help speed up = the inside cowl air to >align to the tip of the tear drop, where an opening= will be for the >exhaust pipe=2E Also will allow the outside air the stay = attached to the >bottom and sides of the subcowl=2E > >The perforated inner= tube would face aft=2E The idea was to allow the >slowing moving cowl air,= to get sucked into the faster moving exhaust >tube=2E But I think for now,= I'll just cut the exhaust pipe short inside >the bigger outer pipe=2E This= will take place inside the subcowl=2E Then >the bigger outer pipe will exi= t the tip of the tear drop, all the way >down the belly of the plane=2E Whe= re the pipe stops changing color from >the exhaust heat, I'll cut off there= =2E That will be my baseline=2E > >Inside the subcowl, the front of the out= er tube (eductor) will have >some type of bellmouth on it=2E I found a few = on the internet, but I may >3D print one as a mold, then fiberglass overtop= =2E I've done that a few >times now with designing parts=2E >https://www=2E= summitracing=2Ecom/int/parts/vpe-10953/overview/ >[https://www=2Esummitraci= ng=2Ecom/int/parts/vpe-10953/overview/] > >I have a butterfly valve on my o= il outlet, which will keep temps where >I want them during slow / fast spee= ds=2E Still need to make a big flap >for my coolant outlet though, so it ca= n do the same thing=2E This will >allow me to really know if my inlets are = too big / too small based on >how far the flaps need to close / open to kee= p temps=2E > >- Matt Boiteau >On 1/5/2019 10:49:04 PM, Charlie England ceen= gland7@gmail=2Ecom >[mailto:ceengland7@gmail=2Ecom] >[mailto:flyrotary@lancaironline=2Enet] wrote: >On 1/5/2019 11:32 = AM, Matt Boiteau mattboiteau@gmail=2Ecom >[mailto:mattboiteau@gmail=2Ecom] = wrote: > >*Anybody have advice on how they run their exhaust exit systems?*= > > >- Matt Boiteau >------ Forwarded Message -------- >From: Matt Boiteau= mattboiteau@gmail=2Ecom [mailto:mattboiteau@gmail=2Ecom] > [mailto:flyrotary@lancaironline=2Enet] >Date: 12/9/2018 10:= 13:56 PM >Subject: [FlyRotary] Exhaust setup's >To: Rotary motors in aircra= ft >[mailto:flyrotary@lancaironline=2Enet] = > >I'm at the stage of securing an exhaust setup=2E How do you guys do it? = >I'll have a sub-cowl under the belly of the plane (shape of a tear >drop),= which will streamline the main cowl air (coolant and oil >outlets)=2E > >I= 'm thinking I exit the exhaust (2=2E5" pipe) inside the sub-cowl and >have = a 5" wrapped around it which ends out the sub-cowl for x length=2E >This sh= ould help create a vacuum and pump out the main cowl air=2E > > >Before exi= ting the main exhaust pipe, should I have perforated holes or >louvers in i= t? > > > >- Matt Boiteau >-- Homepage: http://www=2Eflyrotary=2Ecom/ [http:= //www=2Eflyrotary=2Ecom/] >Archive and UnSub: >http://mail=2Elancaironline= =2Enet:81/lists/flyrotary/List=2Ehtml >[http://mail=2Elancaironline=2Enet:8= 1/lists/flyrotary/List=2Ehtml] > >Hi Matt, > >I'm no engineer, but I do kno= w a few engineers with recent hotel time=2E >:-) > >Have you read this thre= ad? >http://www=2Evansairforce=2Ecom/community/showthread=2Ephp?t=3D68241&h= ighlight=3Dcowl >[http://www=2Evansairforce=2Ecom/community/showthread=2Eph= p?t=3D68241&highlight=3Dcowl] > >This is a later thread, with postings = & references back to the link >above: >http://www=2Evansairforce=2Ecom/comm= unity/showthread=2Ephp?t=3D159473&highlight=3Dcowl >[http://www=2Evansairfo= rce=2Ecom/community/showthread=2Ephp?t=3D159473&highlight=3Dcowl] >Watc= h Onewinglo's youtube video & try to visualize what the air's doing >wrong = as it comes out of the cowl=2E > >It's about cooling a Lyc, but cooling is = cooling=2E It's a long thread, >but reading anything posted by DanH is wort= hy of respect=2E Note all the >attention to smoothly curved entry areas, an= d the ultimate 'bluff body' >(squared off) exit, with the external surfaces= parallel to the free >stream around the a/c=2E > >I could be wrong, but I = see a lot of skin drag with the tube-in-a-tube, >with the exit air having t= o scrub on both tubes to get out=2E Also a >*lot* of drag where the cooling= outlet air enters the outer tube >(reference: 'bellmouth' & 'velocity stac= k')=2E Is the perforated inner >tube intended to be a muffler? If so, it's = kinda like the inner tube of >a Spintech muffler, but the dimpled slots fac= e aft in the Spintech=2E The >spintech works great as a rotary muffler, if = that's your goal=2E > >There's lots of NACA & NASA research on eductors, if= you do a little >digging=2E Most of the stuff I've seen says that they can= work great at >low speeds, at the expense of excess cooling drag in cruise= =2E A good >storehouse of reading material is the CAFE Foundation=2E Try he= re: >https://cafe=2Efoundation/v2/tech_enablingtech_dragreduction=2Ephp >[h= ttps://cafe=2Efoundation/v2/tech_enablingtech_dragreduction=2Ephp] >and her= e: >https://cafe=2Efoundation/v2/research_reports=2Ephp >[https://cafe=2Efo= undation/v2/research_reports=2Ephp] >with attention to the three 'Local Flo= w' articles in the 2nd link=2E > >Here's hoping I'm not making things worse= , > >Charlie > > > >[Avast logo] [https://www=2Eavast=2Ecom/antivirus] >Thi= s email has been checked for viruses by Avast antivirus software=2E >www=2E= avast=2Ecom [https://www=2Eavast=2Ecom/antivirus] > >[#DAB4FAD8-2DD7-40BB-A= 1B8-4E2AA1F9FDF2] > >-- Homepage: http://www=2Eflyrotary=2Ecom/ [http://www= =2Eflyrotary=2Ecom/] >Archive and UnSub: >http://mail=2Elancaironline=2Enet= :81/lists/flyrotary/List=2Ehtml >[http://mail=2Elancaironline=2Enet:81/list= s/flyrotary/List=2Ehtml] ------P9CYTO4YCHGN7AMDQV3KWUH1YM626O Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable
That's the idea; a = big, smoothly curved transition to the exit point, with the exhaust firing = through it=2E The extra pipe is likely just extra drag (and extra weight)= =2E

Charlie
On Jan 6, 2019, at 10:35 PM= , "Matt Boiteau mattboiteau@gmail=2Ecom" <flyrotary@lancaironline=2Enet> = wrote:
That's pretty intere= sting idea, to end the exhaust short and shoot it into a larger (eductor) p= ipe with a bellmouth on the front=2E I'm wondering if I even need a larger = pipe, or would the inside of the subcowl act as the pipe? SO much to think = about=2E Add some Fiberfrax and this heat barrier, and you can good over 20= 00F easy=2E
https://www=2Eamazon=2Ecom/gp/product/B00029KC2K/ref=3Dox_sc= _saved_title_1?smid=3DATVPDKIKX0DER&psc=3D1

I think I'll secure = the pipe as it comes past the firewall, and allow a slip joint that I'll be= able to test a whole bunch of different configurations=2E For now, I just = need to get the dam thing flying=2E lol=2E Have to stop changing things and= stick to a plan=2E

I'm good with electronics, so I'll be building a= remote bluetooth device that will have a bunch of air temp, EGT probes &am= p; pressure sensors on it=2E Maybe even a camera if I can figure that one o= ut=2E Be able to data log all these different ideas=2E

- Matt Boiteau

On 1/6/2019 5:11:40 PM, Charlie En= gland ceengland7@gmail=2Ecom <flyrotary@lancaironline=2Enet> wrote:

There's a Lancair guy and a Mustang II guy who both = post fairly often on the list=2E I'm sure you'd survive, as long as t= he subject can be tied to RVs in some way=2E

Did you c= ompare the outside shape of your 'afterbody' to Vetterman's? His is m= uch more of a convex 'egg' shape=2E  Have you tried to tuft test= yours? I'm thinking about the horizontal equivalent of what's happen= ing in the vertical plane in the video in that 2nd thread=2E
=
The eductors I've seen seem to have much shorter ducts, and th= e exhaust energizes the duct by shooting into it, rather than being = submerged in it=2E I just found this site, which looks closer to = what I was thinking=2E
http://nickugolini=2Ec= om/website/Eductor=2Ehtml
The super high velocity exhaust str= eam is pretty potent in dragging cooling air along with it, without t= he drag of all those small holes=2E
Another example is what= was once the world's fasted RV-6, that had the pipe cut just an inch= or so inside the cooling outlet (just forward of the firewall)=2E I = talked to the builder at SNF; he described cutting the pipes a half i= nch at a time, trying to tune for power=2E when he got to the exit, h= e decided to 'gamble' on shortening them one more time where they'd e= xit inside the cowl, and he saw an improvement in oil cooling after t= he cut=2E

Charlie

On 1/6/2019 11:= 59 AM, Matt Boiteau mattboiteau@gmail=2Ecom wrote:
=
=
Thanks guys=2E I browse the RV forum re= ligiously, there is so much good information on there=2E I did come= across and save a lot of posts from DanH but not the second one yo= u mentioned Charlie=2E I don't know how they feel, if I post stuff = on there without being an RV owner? The subcowl I fiberglassed, is = the back half shape of a tear drop=2E Much like the Vetterman setup= =2E Should help speed up the inside cowl air to align to the tip of= the tear drop, where an opening will be for the exhaust pipe=2E Al= so will allow the outside air the stay attached to the bottom and s= ides of the subcowl=2E

The perforated inner tube w= ould face aft=2E The idea was to  allow the slowing moving cow= l air, to get sucked into the faster moving exhaust tube=2E But I t= hink for now, I'll just cut the exhaust pipe short inside the bigge= r outer pipe=2E This will take place inside the subcowl=2E Then the= bigger outer pipe will exit the tip of the tear drop, all the way = down the belly of the plane=2E Where the pipe stops changing color = from the exhaust heat, I'll cut off there=2E That will be my baseli= ne=2E

Inside the subcowl, the front of the outer t= ube (eductor) will have some type of bellmouth on it=2E I f= ound a few on the internet, but I may 3D print one as a mold, the= n fiberglass overtop=2E I've done that a few times now with desig= ning parts=2E
https://ww= w=2Esummitracing=2Ecom/int/parts/vpe-10953/overview/

=
I have a butterfly valve on my oil outlet, whic= h will keep temps where I want them during slow / fast speeds=2E = Still need to make a big flap for my coolant outlet though, so it= can do the same thing=2E This will allow me to really know if my= inlets are too big / too small based on how far the flaps need t= o close / open to keep temps=2E

<= /div>
- Matt Boiteau

On 1/5/2019 10:49:04 PM, Charlie England ceengland= 7@gmail=2Ecom <flyrotary@lancaironline=2Enet> wrote:

On 1/5/2019 11:32 AM, Matt = Boiteau mattboiteau@gmail=2Ecom wrote:
=
*Anybody have advice on how they run their exhaust exi= t systems?*

=
- Matt Boiteau

------ Forwarded Message --------
= From: Matt Boiteau mattboiteau@g= mail=2Ecom <flyrotary@lancaironline= =2Enet>
Date: 12/9/2018 10:13:56 PM
= Subject: [FlyRotary] Exhaust setup's
= To: Rotary motors in aircraft <flyr= otary@lancaironline=2Enet>

=
=

I'm = at the stage of securing an exhaust setup=2E H= ow do you guys do it?

=
I'll have a sub-cowl under the belly o= f the plane (shape of a tear drop), which= will streamline the main cowl air (coola= nt and oil outlets)=2E
=
I'm thinking I e= xit the exhaust (2=2E5" pipe) inside the = sub-cowl and have a 5" wrapped around it = which ends out the sub-cowl for x length= =2E This should help create a vacuum and = pump out the main cowl air=2E
=

Be= fore exiting the main exhaust pipe, sho= uld I have perforated holes or louvers = in it?

=
=
- Matt Boiteau
=
=
=
= -- Homepage: http://www=2Eflyrotary=2Ec= om/ Archive and UnSub: http://mail=2Elancaironline=2Enet:81/lists/f= lyrotary/List=2Ehtml
=

= Hi Matt,

I'm no engineer, but I do know a= few engineers with recent hotel time=2E :-)
Have you read this thread?
http://w= ww=2Evansairforce=2Ecom/community/showthread=2Ephp?t=3D68241&highlight= =3Dcowl

This is a later thread, with p= ostings & references back to the link above:
= http://www=2Evansairforce=2Ecom/community/showthread=2Ephp?t=3D= 159473&highlight=3Dcowl
Watch Onewinglo's youtube v= ideo & try to visualize what the air's doing wrong as it co= mes out of the cowl=2E

It's about cooling = a Lyc, but cooling is cooling=2E It's a long thread, but readin= g anything posted by DanH is worthy of respect=2E Note all the = attention to smoothly curved entry areas, and the ultimate 'blu= ff body' (squared off) exit, with the external surfaces paralle= l to the free stream around the a/c=2E

= I could be wrong, but I see a lot of skin drag with the = tube-in-a-tube, with the exit air having to scrub on both tub= es to get out=2E Also a *lot* of drag where the cooling outlet = air enters the outer tube (reference: 'bellmouth' & 'veloci= ty stack')=2E Is the perforated inner tube intended to be a muf= fler? If so, it's kinda like  the inner tube of a Spintech= muffler, but the dimpled slots face aft in the Spintech=2E The= spintech works great as a rotary muffler, if that's your goal= =2E

There's lots of NACA & NASA resear= ch on eductors, if you do a little digging=2E Most of the stuff= I've seen says that they can work great at low speeds, at the = expense of excess cooling drag in cruise=2E A good storehouse o= f reading material is the CAFE Foundation=2E Try here:
= https:= //cafe=2Efoundation/v2/tech_enablingtech_dragreduction=2Ephp
= and here:
https://cafe=2Efoundation/v2/research_reports=2Ephp
= with attention to the three 'Local Flow' articles in the 2nd li= nk=2E

Here's hoping I'm not making things = worse,

Charlie

= =
3D"Avast =

This email has been checked = for viruses by Avast antivirus software=2E
= www=2Eavast=2Ecom

=
= 

-=
-
Homepage:  http://www=2Eflyrotary=2Ecom/
Archive and UnSub:   http://mail=2Elancaironline=2Enet:81/lists/flyrot=
ary/List=2Ehtml

= ------P9CYTO4YCHGN7AMDQV3KWUH1YM626O--