Return-Path: Sender: (Marvin Kaye) To: lml@lancaironline.net Date: Thu, 05 Aug 2004 00:17:50 -0400 Message-ID: X-Original-Return-Path: Received: from imo-d20.mx.aol.com ([205.188.139.136] verified) by logan.com (CommuniGate Pro SMTP 4.2) with ESMTP id 352712 for lml@lancaironline.net; Wed, 04 Aug 2004 23:53:36 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.188.139.136; envelope-from=Sky2high@aol.com Received: from Sky2high@aol.com by imo-d20.mx.aol.com (mail_out_v37_r3.4.) id q.29.5e141835 (17377) for ; Wed, 4 Aug 2004 23:53:01 -0400 (EDT) From: Sky2high@aol.com X-Original-Message-ID: <29.5e141835.2e43091d@aol.com> X-Original-Date: Wed, 4 Aug 2004 23:53:01 EDT Subject: Re: [LML] L2C Data request at max range power off glide. X-Original-To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-----------------------------1091677981" X-Mailer: 9.0 for Windows sub 5000 -------------------------------1091677981 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit In a message dated 8/4/2004 9:44:53 PM Central Standard Time, michael.j.clark@navy.mil writes: Can any one give me a couple data points. I am not flying yet so I am just looking for an average. At max range power off glide what is your descent rate at a given weight x? What is it at x-150 pounds? What is your best I really just want to see how much your max range glide distance changes between single and dual flight. Thanks Mike L235/13B 85% Mike, Flying my Lancair 320 equipped with a Hatrzell constant speed prop at approximately 1/2 fuel and 2 souls (about 1720 pounds), holding a best glide speed of about 107 Kts (10836 feet per minute) and with the throttle pulled back to a guessed zero thrust: Prop left in cruise pitch = 1500 - 1600 feet per minute descent for a 7:1 ratio. Prop set to coarse pitch = 450 - 500 feet per minute descent for a 22:1 ratio. I haven't run this experiment at a lighter weight since the prop setting has such a significant effect. I assume a seized engine would result in a descent rate about half way between the two extremes. Scott Krueger AKA Grayhawk Sky2high@aol.com II-P N92EX IO320 Aurora, IL (KARR) LML, where ideas collide and you decide! -------------------------------1091677981 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable
In a message dated 8/4/2004 9:44:53 PM Central Standard Time,=20 michael.j.clark@navy.mil writes:
<= FONT=20 style=3D"BACKGROUND-COLOR: transparent" face=3DArial color=3D#000000 size= =3D2>Can any=20 one give me a couple data points.  I am not flying yet so I am just=20 looking for an average.

At max range power off glide what is your=20 descent rate at a given weight x?  What is it at x-150 pounds? =20= What=20 is your best

I really just want to see how much your max range gli= de=20 distance changes between single and dual flight.

Thanks=20 Mike
L235/13B 85%
Mike,
 
Flying my Lancair 320 equipped with a Hatrzell constant speed prop = ;at=20 approximately 1/2 fuel and 2 souls (about 1720 pounds), holding a best=20 glide speed of about 107 Kts (10836 feet per minute) and with the throt= tle=20 pulled back to a guessed zero thrust:
 
Prop left in cruise pitch =3D 1500 - 1600 feet per minute descent=20= for a=20 7:1 ratio.
 
Prop set to coarse pitch =3D 450 - 500 feet per minute descent for a 22= :1=20 ratio.
 
I haven't run this experiment at a lighter weight since the prop settin= g=20 has such a significant effect.  I assume a seized engine would result i= n a=20 descent rate about half way between the two extremes.=20
 
Scott Krueger=20 AKA Grayhawk
Sky2high@aol.com
II-P N92EX IO320 Aurora, IL=20 (KARR)

LML, where ideas collide and you=20 decide!
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