X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [64.12.137.6] (HELO imo-m25.mail.aol.com) by logan.com (CommuniGate Pro SMTP 5.2.11) with ESMTP id 3434232 for flyrotary@lancaironline.net; Mon, 19 Jan 2009 18:25:21 -0500 Received: from WRJJRS@aol.com by imo-m25.mx.aol.com (mail_out_v39.1.) id q.d46.3b54c5f6 (37163) for ; Mon, 19 Jan 2009 18:25:23 -0500 (EST) Received: from smtprly-mb02.mx.aol.com (smtprly-mb02.mx.aol.com [64.12.207.149]) by cia-ma04.mx.aol.com (v121_r5.5) with ESMTP id MAILCIAMA042-5c6649750a9a111; Mon, 19 Jan 2009 18:25:09 -0500 Received: from webmail-me10 (webmail-me10.webmail.aol.com [64.12.88.202]) by smtprly-mb02.mx.aol.com (v121_r5.5) with ESMTP id MAILSMTPRLYMB024-5c6649750a9a111; Mon, 19 Jan 2009 18:19:54 -0500 References: To: flyrotary@lancaironline.net Subject: Re: [FlyRotary] Re: Paul Lamar's Simple Fuel Injection Date: Mon, 19 Jan 2009 18:19:54 -0500 X-AOL-IP: 66.253.96.220 In-Reply-To: X-MB-Message-Source: WebUI MIME-Version: 1.0 From: wrjjrs@aol.com X-MB-Message-Type: User Content-Type: multipart/alternative; boundary="--------MB_8CB48A392147772_E94_4E3_webmail-me10.sysops.aol.com" X-Mailer: AOL Webmail 40627-STANDARD Received: from 66.253.96.220 by webmail-me10.sysops.aol.com (64.12.88.202) with HTTP (WebMailUI); Mon, 19 Jan 2009 18:19:54 -0500 Message-Id: <8CB48A39203C6EE-E94-264@webmail-me10.sysops.aol.com> X-Spam-Flag:NO ----------MB_8CB48A392147772_E94_4E3_webmail-me10.sysops.aol.com Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii" Ok Jeff, Here's one for you... Running the Baha 1000 2 guys running a V-dub Bug in the sedan class rolled their ride and broke off the carb. They wanted to at least make the next checkpoint so they could legally do repairs and not be disqualified. They took the output of the VW's mechanical fuel pump and stuck the tube onto the barrel of an old-fashioned Bic ballpoint pen. You remember those right? The ones with a small hole in the side. They safety wired the thing over the plenum of their intake and the thing started and ran! They had a hell of a time getting it to acellerate, but they said the thing actually ran pretty good at about 50 mph. This is the crudest form of mechanical fuel injection! But if the engine blew all they had to to do was wait for the crash truck. The point is many things CAN work, but not very well. Make do jobs aren't going to be acceptable on your airplane which has a much higher horsepower need to keep you flying. 25% just isn't going to cut it. Bill Jepson -----Original Message----- From: Jeff Whaley To: Rotary motors in aircraft Sent: Mon, 19 Jan 2009 12:29 pm Subject: [FlyRotary] Re: Paul Lamar's Simple Fuel Injection From my perspective (25 years in electronics) the injector driver circuitry would probably work, but as others have pointed out to what degree and with what service life. Secondly, it doesn't provide anything of use to most of us with EC2s/EC3s ... you still need to drive either 2 or 4 injectors and a fuel pump. The trickle-down gravity-fed fuel system, as a back-up was the most interesting aspect of the article to me ... that would really extend the airtime after an alternator failure if the fuel pumps and injectors could be turned off and some basic limp-home mode could be achieved. Otherwise we all need to know the battery life of our installations, add a second battery, etc. Jeff -----Original Message----- From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of George Lendich Sent: Monday, January 19, 2009 2:56 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Paul Lamar's Simple Fuel Injection Michael, Everyone's interested, but not enough information. PL is a master of the great ideas, but I don't know how many actually come to fruiton. George (down under) ----- Original Message ----- From: "Michael McMahon" To: "Rotary motors in aircraft" Sent: Monday, January 19, 2009 8:07 PM Subject: [FlyRotary] Paul Lamar's Simple Fuel Injection >I haven't seen any response on this list to the article that Paul Lamar > posted a couple days ago (below). I'm very interested in objective > discussion of merits and flaws, and there hasn't been much on the Rotary > Engines list. Has anyone read it? Any opinions? > > Thanks, Michael > >>>>> Not entirely done as I will be updating it from time to time depending > on your questions. >>>>> http://www.rotaryeng.net/simple-cheap-555.html >>>>> Paul Lamar > > > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: > http://mail.lancaironline.net:81/lists/flyrotary/List.html -- Homepage: http://www.flyrotary.com/ Archive and UnSub: http://mail.lancaironline.net:81/lis ts/flyrotary/List.html -- Homepage: http://www.flyrotary.com/ Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.html ----------MB_8CB48A392147772_E94_4E3_webmail-me10.sysops.aol.com Content-Transfer-Encoding: 7bit Content-Type: text/html; charset="us-ascii" Ok Jeff, Here's one for you... Running the Baha 1000 2 guys running a V-dub Bug in the sedan class rolled their ride and broke off the carb. They wanted to at least make the next checkpoint so they could legally do repairs and not be disqualified. They took the output of the VW's mechanical fuel pump and stuck the tube onto the barrel of an old-fashioned Bic ballpoint pen. You remember those right? The ones with a small hole in the side. They safety wired the thing over the plenum of their intake and the thing started and ran! They had a hell of a time getting it to acellerate, but they said the thing actually ran pretty good at about 50 mph. This is the crudest form of mechanical fuel injection! But if the engine blew all they had to to do was wait for the crash truck. The point is many things CAN work, but not very well. Make do jobs aren't going to be acceptable on your airplane which has a much higher horsepower need to keep you flying. 25% just isn't going to cut it.
Bill Jepson


-----Original Message-----
From: Jeff Whaley <jwhaley@datacast.com>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Mon, 19 Jan 2009 12:29 pm
Subject: [FlyRotary] Re: Paul Lamar's Simple Fuel Injection

From my perspective (25 years in electronics) the injector driver circuitry 
would probably work, but as others have pointed out to what degree and with what 
service life. Secondly, it doesn't provide anything of use to most of us with 
EC2s/EC3s ... you still need to drive either 2 or 4 injectors and a fuel pump. 
The trickle-down gravity-fed fuel system, as a back-up was the most interesting 
aspect of the article to me ... that would really extend the airtime after an 
alternator failure if the fuel pumps and injectors could be turned off and some 
basic limp-home mode could be achieved. Otherwise we all need to know the 
battery life of our installations, add a second battery, etc.
Jeff

-----Original Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf 
Of George Lendich
Sent: Monday, January 19, 2009 2:56 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Paul Lamar's Simple Fuel Injection

Michael,
Everyone's interested, but not enough information.
PL is a master of the great ideas, but I don't know how many actually come
to fruiton.
George (down under)

----- Original Message -----
From: "Michael McMahon" <afm528@gmail.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Monday, January 19, 2009 8:07 PM
Subject: [FlyRotary] Paul Lamar's Simple Fuel Injection


>I haven't seen any response on this list to the article that Paul Lamar
> posted a couple days ago (below).  I'm very interested in objective
> discussion of merits and flaws, and there hasn't been much on the Rotary
> Engines list.   Has anyone read it?  Any opinions?
>
> Thanks,  Michael
>
>>>>> Not entirely done as I will be updating it from time to time depending
> on your questions.
>>>>> http://www.rotaryeng.net/simple-cheap-555.html
>>>>> Paul Lamar
>
>
> --
> Homepage:  http://www.flyrotary.com/
> Archive and UnSub:
> http://mail.lancaironline.net:81/lists/flyrotary/List.html


--
Homepage:  http://www.flyrotary.com/
Archive and UnSub:   http://mail.lancaironline.net:81/lists/flyrotary/List.html


--
Homepage:  http://www.flyrotary.com/
Archive and UnSub:   http://mail.lancaironline.net:81/lists/flyrotary/List.html
----------MB_8CB48A392147772_E94_4E3_webmail-me10.sysops.aol.com--