X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fmailhost05.isp.att.net ([204.127.217.105] verified) by logan.com (CommuniGate Pro SMTP 5.2.13) with ESMTP id 3568722 for flyrotary@lancaironline.net; Thu, 02 Apr 2009 22:31:41 -0400 Received-SPF: pass receiver=logan.com; client-ip=204.127.217.105; envelope-from=bbradburry@bellsouth.net Received: from desktop (adsl-146-127-125.mco.bellsouth.net[72.146.127.125]) by isp.att.net (frfwmhc05) with SMTP id <20090403023103H0500lsmide>; Fri, 3 Apr 2009 02:31:04 +0000 X-Originating-IP: [72.146.127.125] From: "Bill Bradburry" To: "'Rotary motors in aircraft'" References: In-Reply-To: Subject: RE: [FlyRotary] Lead Spinner!!! : [FlyRotary] Re: 20B mated to RV-10 Date: Thu, 2 Apr 2009 22:31:06 -0400 Message-ID: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0050_01C9B3E2.B6FBDCF0" X-Mailer: Microsoft Office Outlook 11 Thread-Index: Acmz0RbeOqN2ywuOQXy55NQpvJrETgAMuBjQ X-MimeOLE: Produced By Microsoft MimeOLE V6.0.6001.18049 This is a multi-part message in MIME format. ------=_NextPart_000_0050_01C9B3E2.B6FBDCF0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Not hard to solve.Just put a hundred pounds of feathers in the tail! That is what the birds do. :>) Bill B _____ From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Ed Anderson Sent: Thursday, April 02, 2009 4:27 PM To: Rotary motors in aircraft Subject: [FlyRotary] Lead Spinner!!! : [FlyRotary] Re: 20B mated to RV-10 See! I told you Tracy took this weight savings to extremes. Here he is with a 20B in the nose, gearbox, radiators, etc and his RV-8 is "Tail Heavy". I guess no question, you'll just have to added 20 lbs of lead in the spinner {:>), I mean you can't move the battery forward of the cowl you know. Ed Ed Anderson Rv-6A N494BW Rotary Powered Matthews, NC eanderson@carolina.rr.com http://www.andersonee.com http://www.dmack.net/mazda/index.html http://www.flyrotary.com/ http://members.cox.net/rogersda/rotary/configs.htm#N494BW http://www.rotaryaviation.com/Rotorhead%20Truth.htm _____ From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Tracy Crook Sent: Thursday, April 02, 2009 11:06 AM To: Rotary motors in aircraft Subject: [FlyRotary] Re: 20B mated to RV-10 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 ------=_NextPart_000_0050_01C9B3E2.B6FBDCF0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Not hard to solve…Just put a hundred pounds of feathers in = the tail!  That is what the birds do.  = :>)

 

Bill B 

 

From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Ed Anderson
Sent: Thursday, April 02, = 2009 4:27 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Lead Spinner!!! : [FlyRotary] Re: 20B mated to = RV-10

See!  I told you Tracy took this weight savings to extremes.  Here he is with a 20B in the nose, gearbox, radiators, = etc and his RV-8 is “Tail Heavy”.  I guess no question, = you’ll just have to added 20 lbs of lead in the spinner {:>), I mean you can’t move the battery forward of the cowl you = know.

 

Ed

 

From: = Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Tracy Crook
Sent: Thursday, April 02, = 2009 11:06 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: = 20B mated to RV-10

 

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 <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
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<= /a> 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.h= tml

 

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