Return-Path: Received: from [24.25.9.102] (HELO ms-smtp-03-eri0.southeast.rr.com) by logan.com (CommuniGate Pro SMTP 4.3c2) with ESMTP id 751259 for flyrotary@lancaironline.net; Sun, 20 Feb 2005 09:09:08 -0500 Received-SPF: pass receiver=logan.com; client-ip=24.25.9.102; envelope-from=eanderson@carolina.rr.com Received: from edward2 (cpe-024-074-185-127.carolina.rr.com [24.74.185.127]) by ms-smtp-03-eri0.southeast.rr.com (8.12.10/8.12.7) with SMTP id j1KE8Jkd001856 for ; Sun, 20 Feb 2005 09:08:20 -0500 (EST) Message-ID: <003701c51755$a7077530$2402a8c0@edward2> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Digital Fuel Monitoring System / EC2 Primer function Date: Sun, 20 Feb 2005 09:08:28 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0034_01C5172B.BDF108D0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1106 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-Virus-Scanned: Symantec AntiVirus Scan Engine This is a multi-part message in MIME format. ------=_NextPart_000_0034_01C5172B.BDF108D0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MessageGreat news,Tracy! At least for those of us who live further = north, that cold start function will materially cut down on cranking = needed. That morning after, cranking and the engine groaning - Tracy = showed me the EC2 on-off technique that somebody had discovered would = squirt additional fuel into the manifold - that really cut down on the = cranking needed to get started on a cold morning in Florida. But, this = is a much more elegant solution. Thanks, Tracy. I take back all those words about the woes of letting a = hobby turning into a business - keep it up! Never plan on retiring! Best Regards Ed A ----- Original Message -----=20 From: Tracy Crook=20 To: Rotary motors in aircraft=20 Sent: Saturday, February 19, 2005 11:34 PM Subject: [FlyRotary] Re: Digital Fuel Monitoring System / EC2 Primer = function Nice job Ed, that little gizzmo represents a lot of effort but it is = gratifying to see it work I'm sure. =20 I have never run into the cold start problems that some builders have = mentioned but Ed did show me that it can happen on a cold morning, even = in Florida. I finally got around to adding a primer function to the EC2 = code and it will be incorporated in all future EC2s. If any of you cold = climate builders feel the need, a chip swap can get this function in = earlier EC2s. Contact me via email. It works like this: When the engine is not running and the mode select switch is set to = zero, pushing the Store switch will give a 10 ms shot on all 4 = injectors. How many shots are required for a really cold start will = depend on manifold design, temperature, injector position, etc, and will = have to be determined experimentally. Tracy=20 Good Point! Rusty. Thanks! almost fell into the same trap that Tracy did - even after = my unheeded warnings to him {:>) Of course, we are all glad he did. Ed ----- Original Message -----=20 From: Russell Duffy=20 To: Rotary motors in aircraft=20 Sent: Friday, February 18, 2005 8:51 AM Subject: [FlyRotary] Re: Digital Fuel Monitoring System However, if I did decide to sell it would probably be mid-late = summer time before it happened. The current design is somewhat labor = intensive in cutting apart the board into the front panel and Chip = board, placing "sockets and plugs" on each board so they can plug = together, etc. I would need to look a ways to simplify it a bit and I = am certain the layout of the board could be improved. Already, Finn has = pointed out my resistors are mounted by their "legs" {:>). Looks good Ed. As for selling them, I think I hear Tracy laughing = now, as your retirement relaxation turns into work :-) Cheers, Rusty (email functioning for 24 straight hours) ------=_NextPart_000_0034_01C5172B.BDF108D0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Message
Great news,Tracy!  At least for those of us = who live=20 further north, that cold start function will materially cut down on = cranking=20 needed.  That morning after, cranking and the engine groaning - = Tracy=20 showed me the EC2 on-off technique that somebody had discovered would = squirt=20 additional fuel into the manifold - that really cut down on the cranking = needed=20 to get started on a cold morning in Florida.  But, this is a much = more=20 elegant solution.
 
Thanks, Tracy.  I take back all those words = about the=20 woes of letting a  hobby turning into a business - keep it up! = Never plan=20 on retiring!
 
Best Regards
 
Ed A
 
 
----- Original Message -----
From:=20 Tracy = Crook
Sent: Saturday, February 19, = 2005 11:34=20 PM
Subject: [FlyRotary] Re: = Digital Fuel=20 Monitoring System / EC2 Primer function


Nice job Ed,  that little gizzmo represents a lot=20 of effort but it is gratifying to see it work I'm = sure. 
 
I have never run into the cold start problems that some builders = have=20 mentioned but Ed did show me that it can happen on a cold morning, = even in=20 Florida.  I finally got around to adding a primer function to the = EC2=20 code and it will be incorporated in all future EC2s.  If any of = you cold=20 climate builders feel the need, a chip swap can get this function in = earlier=20 EC2s.  Contact me via email.
 
It works like this:
 
When the engine is not running and the mode select switch is set = to zero,=20 pushing the Store switch will give a 10 ms shot on all 4 = injectors.  How=20 many shots are required for a really cold start will depend on = manifold=20 design, temperature, injector position, etc, and will have to be = determined=20 experimentally.
 
Tracy
Good Point! Rusty.
 
Thanks!  almost fell into the = same trap=20 that Tracy did - even after my unheeded warnings to = him {:>) =20 Of course, we are all glad he did.
 
Ed
----- Original Message ----- =
From:=20 Russell Duffy
To: Rotary motors in = aircraft=20
Sent: Friday, February 18, = 2005 8:51=20 AM
Subject: [FlyRotary] Re: = Digital Fuel=20 Monitoring System

However, if I did decide to sell = it would=20 probably be mid-late summer time before it happened.  The = current=20 design is somewhat labor intensive in cutting apart the board into = the=20 front panel and Chip board, placing "sockets and plugs" on each = board so=20 they can plug together, etc.  I would need to look a ways to = simplify=20 it a bit and I am certain the layout of the board could be = improved. =20 Already, Finn has pointed out my resistors are mounted by their = "legs"=20 {:>).
 
 
Looks=20 good Ed.  As for selling them, I think I hear Tracy = laughing=20 now, as your retirement relaxation turns into work =20 :-)
 
Cheers,
Rusty=20 (email functioning for 24 straight hours)
 
 
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