X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [24.25.9.103] (HELO ms-smtp-04-eri0.southeast.rr.com) by logan.com (CommuniGate Pro SMTP 5.0c2) with ESMTP id 729791 for flyrotary@lancaironline.net; Thu, 22 Sep 2005 09:35:37 -0400 Received-SPF: pass receiver=logan.com; client-ip=24.25.9.103; envelope-from=eanderson@carolina.rr.com Received: from edward2 (cpe-065-188-083-049.carolina.res.rr.com [65.188.83.49]) by ms-smtp-04-eri0.southeast.rr.com (8.12.10/8.12.7) with SMTP id j8MDYn1v000312 for ; Thu, 22 Sep 2005 09:34:50 -0400 (EDT) Message-ID: <001301c5bf7a$687a2d80$2402a8c0@edward2> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Pauls Accident - analysis Date: Thu, 22 Sep 2005 09:34:50 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0010_01C5BF58.E1282920" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2180 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 X-Virus-Scanned: Symantec AntiVirus Scan Engine This is a multi-part message in MIME format. ------=_NextPart_000_0010_01C5BF58.E1282920 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable John, I believe the TWM throttle body that Paul got from Atkins which = has injector positions comes with only two injector positions. This = throttle body was available from the distributor (TWM) in either 2 or 4 = injector model. I know from personal experience that using the 4 = injector TW (I had one initially installed) on the 13B made a more = difficult installation - because the two injectors on the "inside" = required you to position the TB a fair distance from the engine block. = So to avoid a lot of manifold work (extending the TB further away from = the block to give room for the two inside injectors), the TB with only = the two injector positions on the outside were most favored for the = aircraft installation. I believe that was the only model sold by = Atkins. I know of one other who also flew with only two injectors, but = there may be more. Reduce fuel flow whether due to fuel selector position or defective = injector or combination during take off would certainly be critical. As = pointed out, when you lose one rotor you lose more than 50% of your HP = due to 1. Less rpm with only one rotor ,2. drag of non-power producing = rotor.=20 Ed A From: John Slade=20 To: Rotary motors in aircraft=20 Sent: Thursday, September 22, 2005 1:09 AM Subject: [FlyRotary] Pauls Accident - analysis The analysis of the 4 canardians who examined the wreckage of Paul = Conner's aircraft is now available at: http://www.cozybuilders.org/N2992_Accident_Eval/ Does anyone know if and why Paul's engine was configured with one = injector per rotor?=20 John ------=_NextPart_000_0010_01C5BF58.E1282920 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
John, I believe the TWM throttle body that Paul = got from=20 Atkins which has injector positions comes with only two injector=20 positions.  This throttle body was available from the distributor = (TWM)=20 in either 2 or 4 injector model.   I know from personal = experience=20 that using the 4 injector TW (I had one initially installed) on the 13B = made a=20 more difficult installation - because the two injectors on the = "inside"=20 required you to position the TB a fair distance from the engine = block.  So=20 to avoid a lot of manifold work (extending the TB further away from the = block to=20 give room for the two inside injectors), the TB with only the two = injector=20 positions on the outside were most favored for the aircraft = installation. =20 I believe that was the only model sold by Atkins.   I know of = one=20 other who also flew with only two injectors, but there may be = more.
 
Reduce fuel flow whether due to fuel selector=20 position   or defective injector or combination during take = off would=20 certainly be critical.  As pointed out, when you lose one rotor you = lose=20 more than 50% of your HP due to 1.  Less rpm with only one rotor = ,2. drag=20 of non-power producing rotor.
 
 
Ed A
 
 
 
From: John = Slade=20
Sent: Thursday, September 22, = 2005 1:09=20 AM
Subject: [FlyRotary] Pauls = Accident -=20 analysis

The=20 analysis of the 4 canardians who examined the wreckage of Paul = Conner's=20 aircraft is now available at:
 
 
Does=20 anyone know if and why Paul's engine was configured with one injector = per=20 rotor?
John
 
------=_NextPart_000_0010_01C5BF58.E1282920--