Return-Path: <13brv3@bellsouth.net> Received: from imf20aec.mail.bellsouth.net ([205.152.59.68] verified) by logan.com (CommuniGate Pro SMTP 4.1.8) with ESMTP id 2992043 for flyrotary@lancaironline.net; Sat, 14 Feb 2004 10:51:34 -0500 Received: from rad ([68.221.170.13]) by imf20aec.mail.bellsouth.net (InterMail vM.5.01.06.05 201-253-122-130-105-20030824) with ESMTP id <20040214155133.LWWA1733.imf20aec.mail.bellsouth.net@rad> for ; Sat, 14 Feb 2004 10:51:33 -0500 From: "Russell Duffy" <13brv3@bellsouth.net> To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] installed width etc. Date: Sat, 14 Feb 2004 09:49:30 -0600 Message-ID: <06bc01c3f312$22794680$6001a8c0@rad> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_06BD_01C3F2DF.D7DED680" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.4510 Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 This is a multi-part message in MIME format. ------=_NextPart_000_06BD_01C3F2DF.D7DED680 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Can someone tell me the width requirements for a rotary installation (preferably Renesis although I suppose that intake / exhaust details are = not yet worked out)?=20 Also the minimum distance from thrust centerline to top of cowl Lastly, = are there any issues about having an oil cooler a long way from the engine? Hi Mike. I'm afraid there aren't really any absolute answers to the = size questions. The engine itself is very compact, but you need intake, = exhaust, alternator, oil filter, etc. These are the items that make the engine compartment a challenge. For the most part, they can be made to fit = where you have space, but there are limits of course. Getting the oil and = water cooling out of the cowl will help, and as long as you have good size = hoses, there's no real problem with remote mounting those items. =20 Musing on a T51 Titan with renesis; Maximum FWF is 340lbs and from my reading I think that without radiators = and oil cooler (in belly scoop) the FWF for a Renesis should be close to = 300lbs. Not counting radiators, or oil coolers, I'd certainly say you could make = the 340 lb weight limit. I looked up the T51, and they list the engine as a = 100 hp Rotax 912. Do they actually allow larger engines, or is the 340 = number something that builders have determined to be the most weight to stay = within CG. Sounds like you've done enough research to realize that a Renesis = will be closer to 250 HP. Sounds like fun :-) If someone were looking for HP in the range of 90-130 or so, with closer = to 225# FWF, there are several folks working on single rotor engines. A = single rotor would be a much more natural substitute for a 912. Width and = height measurements are the same, but it's shorter. =20 Cheers, Rusty (more power Scottie!) 13B powered RV-3 ------=_NextPart_000_06BD_01C3F2DF.D7DED680 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message

Can someone tell me the width requirements for a = rotary=20 installation (preferably Renesis although I suppose that intake / = exhaust=20 details are not yet worked out)? 
Also the minimum distance from = thrust=20 centerline to top of cowl Lastly, are there any issues about having an = oil=20 cooler a long way from the engine?

Hi = Mike.  I'm=20 afraid there aren't really any absolute answers to the size = questions.  The=20 engine itself is very compact, but you need intake, = exhaust, alternator,=20 oil filter, etc.  These are the items that make the engine = compartment a=20 challenge.  For the most part, they can be made to fit where you = have=20 space, but there are limits of course.  Getting the oil and water = cooling=20 out of the cowl will help, and as long as you have good size hoses, = there's no=20 real problem with remote mounting those items. 

Musing on a T51 Titan with renesis;
Maximum FWF is 340lbs and from = my=20 reading I think that without radiators and oil cooler (in belly scoop) = the FWF=20 for a Renesis should be close to 300lbs.

Not counting radiators, = or oil coolers,=20 I'd certainly say you could make the 340 lb weight limit.  I looked = up the=20 T51, and they list the engine as a 100 hp Rotax 912.  Do they = actually=20 allow larger engines, or is the 340 number something that builders have=20 determined to be the most weight to stay within CG.  Sounds = like=20 you've done enough research to realize that a Renesis will be closer to = 250=20 HP.  Sounds like fun :-)

If someone were looking = for HP in the=20 range of 90-130 or so, with closer to 225# FWF, there are several folks = working on=20 single rotor engines.  A single rotor would be a much more natural=20 substitute for a 912.   Width and height measurements are the = same,=20 but it's shorter. 

Cheers,
Rusty (more power=20 Scottie!)
13B powered=20 RV-3
 ------=_NextPart_000_06BD_01C3F2DF.D7DED680--