X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [24.25.9.102] (HELO ms-smtp-03-eri0.southeast.rr.com) by logan.com (CommuniGate Pro SMTP 5.0.8) with ESMTP id 1025094 for flyrotary@lancaironline.net; Mon, 06 Mar 2006 21:02:38 -0500 Received-SPF: pass receiver=logan.com; client-ip=24.25.9.102; envelope-from=eanderson@carolina.rr.com Received: from edward2 (cpe-024-074-025-165.carolina.res.rr.com [24.74.25.165]) by ms-smtp-03-eri0.southeast.rr.com (8.13.4/8.13.4) with SMTP id k2721qCj024956 for ; Mon, 6 Mar 2006 21:01:54 -0500 (EST) Message-ID: <000b01c6418b$653aa6c0$2402a8c0@edward2> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Fly-By-Wire controller Date: Mon, 6 Mar 2006 21:03:56 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0006_01C64161.7B48CE80" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2180 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 X-Virus-Scanned: Symantec AntiVirus Scan Engine This is a multi-part message in MIME format. ------=_NextPart_000_0006_01C64161.7B48CE80 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Sounds Great, Tracy. Appears you have covered the most significant = features already. 1. Lets see - how about a coolant/oil temperature hold - in otherwords = say for a long climb modulate the rpm/manifold to see that coolant/oil = temps are not exceeded by what ever you set, but otherwise pedal to the = metal for a maximum best rate of climb short of melt-down. =20 2. How about tying it into your airspeed sensor to maintain a constant = airspeed or could set in your Vne limits {:>) or maximum descent = airspeed. 3. In fact, How about setting up so you can program in the parameters = for certain flight regimes such as might could factor in such things as density altitude or certainly = OAT, perhaps even have a "Light" and "Heavy" mode adjust these factors = for aircraft gross weight. a. Take off and initial Climbout b. Cruise climb c. Best economy cruise d. Best Speed/economy combination (optimum best of both) e. Descent f. Eating your inflight snack 'bout all the hair brain ideas I can think of at the moment. I am sure = you will get more from others. 4. What happens if power to the unit fails?? What default mode does it = have - simply stays where power left it? Goes wide open (not likely in = an automobile application). Tell us more Best Regards Ed ----- Original Message -----=20 From: Tracy Crook=20 To: Rotary motors in aircraft=20 Sent: Monday, March 06, 2006 5:03 PM Subject: [FlyRotary] Re: Fly-By-Wire controller The FBW RX-8 throttle body controller design is done and the = inevitable 'feature creep' has begun.=20 It occurred to me that since the throttle controller has access to = all the EC2 data that it could do a number of things. The two I have = adopted so far are manifold pressure hold and RPM hold. They hold the = respective parameter constant at the value it was at when the function = was engaged. Obviously the MP hold can only work up to the ambient or = turbo boost pressure available. They are disengaged by either hitting = the cancel button or sensing that the pilot is frantically trying to = regain control by moving the power lever. Any other ideas for this widget before I freeze the design? Tracy Crook ------=_NextPart_000_0006_01C64161.7B48CE80 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Sounds Great, Tracy.  Appears you = have covered=20 the most significant features already.
 
1.  Lets see - how about a = coolant/oil=20 temperature hold - in otherwords say for a long climb modulate the = rpm/manifold=20 to see that coolant/oil temps are not exceeded by what ever you set, but = otherwise pedal to the metal for a maximum best rate of climb short of=20 melt-down. 
 
2.  How about tying it into your = airspeed=20 sensor to maintain a constant airspeed or could set in your Vne limits = {:>)=20 or maximum descent airspeed.
 
 3.  In fact, How about = setting up so you=20 can program in the parameters for certain flight regimes such = as
     might could = factor in such=20 things as density altitude or certainly OAT, perhaps even have a "Light" = and=20 "Heavy" mode adjust these factors for aircraft gross = weight.
 
  a.  Take off and initial=20 Climbout
  b.  Cruise = climb
  c.  Best economy = cruise
  d.  Best Speed/economy = combination=20 (optimum best of both)
  e.  Descent
  f.  Eating your inflight=20 snack
 
'bout all the hair brain ideas I can = think of at=20 the moment.  I am sure you will get more from others.
 
4.  What happens if power to the = unit fails??=20 What default mode does it have - simply stays where power left it? Goes = wide=20 open (not likely in an automobile application).
 
Tell us more
 
Best Regards
 
Ed
----- Original Message -----
From:=20 Tracy = Crook
Sent: Monday, March 06, 2006 = 5:03=20 PM
Subject: [FlyRotary] Re: = Fly-By-Wire=20 controller

The FBW RX-8 throttle body controller design is done and the = inevitable 'feature creep' has begun. 
 
 It occurred to me that since the throttle = controller has=20 access to all the EC2 data that it could do a number of things.  = The two=20 I have adopted so far are manifold pressure hold and RPM = hold.  =20 They hold the respective parameter constant at the value it was = at when=20 the function was engaged.  Obviously the MP hold can only work up = to the=20 ambient or turbo boost pressure available.  They are disengaged = by either=20 hitting the cancel button or sensing that the pilot is frantically = trying to=20 regain control by moving the power lever.
 
Any other ideas for this widget before I freeze the design?
 
Tracy Crook
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