Return-Path: Received: from [206.228.212.23] (HELO mail.statesville.net) by logan.com (CommuniGate Pro SMTP 4.1.8) with ESMTP id 3051388 for flyrotary@lancaironline.net; Sun, 29 Feb 2004 17:03:33 -0500 Received: from TWJames [63.162.171.178] by mail.statesville.net (SMTPD32-8.05) id A2631666018A; Sun, 29 Feb 2004 17:06:27 -0500 From: "Tommy James" To: "Rotary motors in aircraft" Subject: RE: [FlyRotary] EDDIE variable Intake photos Date: Sun, 29 Feb 2004 17:03:44 -0500 Message-ID: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0038_01C3FEE5.FD1A9710" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2911.0) Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 In-Reply-To: X-RBL-Warning: REVDNS: This E-mail was sent from a MUA/MTA 63.162.171.178 with no reverse DNS entry. X-RBL-Warning: WEIGHT10: Weight of 34 reaches or exceeds the limit of 10. X-RBL-Warning: WEIGHT20: Weight of 34 reaches or exceeds the limit of 20. X-Declude-Sender: twjames@statesville.net [63.162.171.178] X-Note: Scanned for Spam This is a multi-part message in MIME format. ------=_NextPart_000_0038_01C3FEE5.FD1A9710 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Way to go Ed! It looks like it might work, maybe even well, maybe even very well! How do you keep your workshop so neat and clean? Congratulations! Tommy<>< -----Original Message----- From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]On Behalf Of Ed Anderson Sent: Sunday, February 29, 2004 4:47 PM To: Rotary motors in aircraft Subject: [FlyRotary] EDDIE variable Intake photos Well, folks, the unveiling is here. Here are the first photos of my variable length intake manifold designed based on the EDDIE analysis. The primary and secondary of each rotor are merged into one runner (1 3/4" dia). These two runners are composed of 1.854 dia tube in which the 1.75" dia tubes slide. One set for each rotor. There is a small DC 50 rpm motor (turns out this is a bit slow) that turns a jack screw. This jack screw drives the throttle body mount and the two 1.75" dia tubes and changes the length by 4" which is a range of approx 1500 rpm. I wanted to get a 6-7" change, but this is a prototype, so I used what I had laying around in terms of manifold parts which put the whole setup 3-4" higher than I want. So depending on OAT the 1500 rpm range could give me the EDDIE from 5000 - 6500 rpm. There is a controller with limit switches at the upper and lower extension to independently stop the motor when limits are reached. I have a small potentiometer with a gear on its shaft. A rack is attached to the throttle body which moves up and down with it. The teeth of the rack turn the pot which of course changes the voltage which is indicated on the control box by 10 Red LEDs. There is a dual color LED which is Green when the throttle body is extending and is Red when it is retracting. A few photos are attached. Hope to install it on the aircraft tomorrow and within a day or two have it running. Ed Anderson RV-6A N494BW Rotary Powered Matthews, NC ------=_NextPart_000_0038_01C3FEE5.FD1A9710 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Way to=20 go Ed!  It looks like it might work, maybe even well, maybe even = very=20 well! 
How do=20 you keep your workshop so neat and clean?
Congratulations!
Tommy<><
-----Original Message-----
From: Rotary motors in = aircraft=20 [mailto:flyrotary@lancaironline.net]On Behalf Of Ed=20 Anderson
Sent: Sunday, February 29, 2004 4:47 = PM
To:=20 Rotary motors in aircraft
Subject: [FlyRotary] EDDIE = variable Intake=20 photos

Well, folks, the unveiling is = here.
 
Here are the first photos of my = variable length=20 intake manifold designed based on the EDDIE analysis.  The = primary and=20 secondary of each rotor are merged into one runner (1 3/4" dia).  = These=20 two runners are composed of 1.854 dia tube in which the 1.75" dia = tubes=20 slide.  One set for each rotor.  There is a small DC 50 rpm = motor=20 (turns out this is a bit slow) that turns a jack screw.  This = jack screw=20 drives the throttle body mount and the two 1.75" dia tubes and changes = the=20 length by 4" which is a range of approx 1500 rpm.  I wanted to = get a 6-7"=20 change, but this is a prototype, so I used what I had laying around in = terms=20 of manifold parts which put the whole setup 3-4" higher than  I=20 want.   So depending on = OAT the 1500=20 rpm range could give me the EDDIE from 5000 - 6500 rpm.
 
There is a controller with limit = switches at the=20 upper and lower extension to independently stop the motor when limits = are=20 reached.  I have a small potentiometer with a gear on its = shaft.  A=20 rack is attached to the throttle body which moves up and down with = it. =20 The teeth of the rack turn the pot which of course changes the voltage = which=20 is indicated on the control box by 10 Red LEDs.  There is a dual = color=20 LED which is Green when the throttle body is extending and is Red when = it is=20 retracting.
 
A few photos are attached.  Hope = to install=20 it on the aircraft tomorrow and within a day or two have it=20 running.
 
 
Ed Anderson
RV-6A N494BW Rotary=20 Powered
Matthews, NC
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