X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [201.225.225.167] (HELO cwpanama.net) by logan.com (CommuniGate Pro SMTP 5.0.7f) with ESMTP id 950329 for flyrotary@lancaironline.net; Mon, 23 Jan 2006 09:48:27 -0500 Received-SPF: none receiver=logan.com; client-ip=201.225.225.167; envelope-from=rijakits@cwpanama.net Received: from [201.224.93.110] (HELO usuarioq3efog0) by frontend1.cwpanama.net (CommuniGate Pro SMTP 4.2.10) with SMTP id 58366529 for flyrotary@lancaironline.net; Mon, 23 Jan 2006 09:54:01 -0500 Message-ID: <007801c6202b$db2b5310$6e5de0c9@usuarioq3efog0> From: "rijakits" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Injector pulseing ? Tracy ? Date: Mon, 23 Jan 2006 09:46:55 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0074_01C62001.F21757B0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1437 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1441 This is a multi-part message in MIME format. ------=_NextPart_000_0074_01C62001.F21757B0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit MessageQuestion. Why does he ( Mark B.) need the injector pulses? Unless he wants to have an automatic-best-performance feature, a simple rpm reading from the crank will do fine. a) Electronics will increase pitch when power is increased to maintain rpm in C/S mode. b) Pilot will change pitch in a variable pitch mode. AFAIU the problem is to find the exact endpoints of pitch travel. How does knowing the injector pulse width help with that? It will tell him how much power is produced in combination with an rpm input, but does he also measure airspeed? Not bitching, just trying to get the idea!! Thomas J. From: Russell Duffy To: Rotary motors in aircraft Sent: Monday, January 23, 2006 8:55 AM Subject: [FlyRotary] Re: Injector pulseing ? Tracy ? And how would Mark Burton's constant speed controller react if the EC2 was switched to injector disable mode. Depending on how it was wired, it might suddenly sense zero power or 2X power. Just thinking out loud. Good point Dean. If he only senses pulses to one injector, then it would have to be the primary, which is always active, unless you turn it off via the disable switch. He may not realize we have the ability to do that, so it would be worth telling him about it. Cheers, Rusty ------=_NextPart_000_0074_01C62001.F21757B0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Message
Question.
 
Why does he ( Mark B.) need the injector=20 pulses?
Unless he wants to have an = automatic-best-performance=20 feature, a simple rpm reading from the crank will do fine.
a) Electronics will increase pitch when power is = increased=20 to maintain rpm in C/S mode.
b) Pilot will change pitch in a variable pitch=20 mode.
 
AFAIU the problem is to find the exact endpoints = of pitch=20 travel. How does knowing the injector pulse width help with = that?
It will tell him how much power is produced in = combination=20 with an rpm input, but does he also measure airspeed?
 
Not bitching, just trying to get the = idea!!
 
Thomas J.
 
 
From: Russell Duffy
Sent: Monday, January 23, 2006 = 8:55=20 AM
Subject: [FlyRotary] Re: = Injector=20 pulseing ? Tracy ?

And how would Mark
Burton's constant speed = controller react=20 if the EC2 was switched to injector
disable mode.  Depending = on how it=20 was wired, it might suddenly sense zero
power or 2X power.  = Just=20 thinking out loud.

Good = point Dean. =20 If he only senses pulses to one injector, then it would have to be the = primary, which is always active, unless you turn it off via the = disable=20 switch.  He may not realize we have the ability to do that, = so it=20 would be worth telling him about it. 
 
Cheers,
Rusty=20
 
 


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