X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [66.219.56.248] (HELO qnsi-xch.qnsi.net) by logan.com (CommuniGate Pro SMTP 5.0c2) with ESMTP id 729840 for flyrotary@lancaironline.net; Thu, 22 Sep 2005 10:21:36 -0400 Received-SPF: none receiver=logan.com; client-ip=66.219.56.248; envelope-from=bhughes@qnsi.net Content-class: urn:content-classes:message Return-Receipt-To: "Bobby J. Hughes" MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C5BF81.9C483E16" Disposition-Notification-To: "Bobby J. Hughes" X-MimeOLE: Produced By Microsoft Exchange V6.5.6944.0 Subject: RE: [FlyRotary] Re: Pauls Accident - analysis Date: Thu, 22 Sep 2005 09:26:23 -0500 Message-ID: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [FlyRotary] Re: Pauls Accident - analysis Thread-Index: AcW/gQmUcbMGcZOPRmyQl/F/cJN8WAAAFmyg From: "Bobby J. Hughes" To: "Rotary motors in aircraft" This is a multi-part message in MIME format. ------_=_NextPart_001_01C5BF81.9C483E16 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable The Microtech units to support injector staging. =20 Bobby ________________________________ From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Barry Gardner Sent: Thursday, September 22, 2005 11:16 AM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Pauls Accident - analysis Nah, his engine controller was the Microtech. I've been looking at it too. It's Aussie, like the rest of them. Paul bought it from Atkins, too. Barry Gardner Kelly Troyer wrote:=20 Ed and All, I may be wrong but do not believe that the Engine Control System that Paul had supported staged (four injectors) injection.......Again not certain but I think his ECS was a "Motec"......... -- Kelly Troyer=20 Dyke Delta/13B/RD1C/EC2=20 =09 =09 =09 =09 -------------- Original message from "Ed Anderson" : --------------=20 =09 =09 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. =20 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 =20 =20 Ed A =20 =20 =20 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: =20 http://www.cozybuilders.org/N2992_Accident_Eval/ =20 =20 Does anyone know if and why Paul's engine was configured with one injector per rotor?=20 John =20 -- Homepage: http://www.flyrotary.com/ Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/ ------_=_NextPart_001_01C5BF81.9C483E16 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable
The Microtech units to support injector=20 staging.
 
Bobby

From: Rotary motors in aircraft=20 [mailto:flyrotary@lancaironline.net] On Behalf Of Barry=20 Gardner
Sent: Thursday, September 22, 2005 11:16 = AM
To:=20 Rotary motors in aircraft
Subject: [FlyRotary] Re: Pauls = Accident -=20 analysis

Nah, his engine controller was the Microtech. I've been = looking at it=20 too. It's Aussie, like the rest of them. Paul bought it from Atkins,=20 too.

Barry Gardner

Kelly Troyer wrote:=20
Ed and All,
     I may be wrong but do not believe that = the=20 Engine Control System that Paul
had supported staged (four injectors) injection.......Again not = certain=20 but I think
his ECS was a "Motec".........
--
Kelly Troyer
Dyke=20 Delta/13B/RD1C/EC2




--------------=20 Original message from "Ed Anderson" <eanderson@carolina.rr.com&g= t;:=20 --------------

John, I believe the TWM throttle body that = Paul got=20 from 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=20 a more difficult installation - because the two injectors on = the=20 "inside" required you to position the TB a fair distance from the = engine=20 block.  So to avoid a lot of manifold work (extending the TB = further=20 away from the block to give room for the two inside injectors), the = TB with=20 only the two injector positions on the outside were most favored for = the=20 aircraft installation.  I believe that was the only model sold = by=20 Atkins.   I know of one other who also flew with only two=20 injectors, but there may be more.
 
Reduce fuel flow whether due to fuel = selector=20 position   or defective injector or combination during = take off=20 would certainly be critical.  As pointed out, when you lose one = rotor=20 you lose more than 50% of your HP due to 1.  Less rpm with only = one=20 rotor ,2. drag of non-power producing rotor.
 
 
Ed A
 
 
 
To:=20 Rotary motors in = aircraft=20 Sent:=20 Thursday, September 22, 2005 1:09 AM Subject:=20 [FlyRotary] Pauls Accident - analysis

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

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