X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: "Marvin Kaye" To: lml@lancaironline.net Date: Wed, 13 Apr 2005 09:21:45 -0400 Message-ID: X-Original-Return-Path: Received: from imo-m23.mx.aol.com ([64.12.137.4] verified) by logan.com (CommuniGate Pro SMTP 4.3c4) with ESMTP id 867378 for lml@lancaironline.net; Wed, 13 Apr 2005 07:33:55 -0400 Received-SPF: pass receiver=logan.com; client-ip=64.12.137.4; envelope-from=Sky2high@aol.com Received: from Sky2high@aol.com by imo-m23.mx.aol.com (mail_out_v38.7.) id q.e3.115dd425 (4410) for ; Wed, 13 Apr 2005 07:33:04 -0400 (EDT) From: Sky2high@aol.com X-Original-Message-ID: X-Original-Date: Wed, 13 Apr 2005 07:33:03 EDT Subject: Re: [LML] Re: Engine Failure X-Original-To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-----------------------------1113391983" X-Mailer: 9.0 Security Edition for Windows sub 5000 -------------------------------1113391983 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit In a message dated 4/13/2005 12:47:04 A.M. Central Standard Time, JIMRHER@aol.com writes: I have the MT 4 Blade on my L4P. the difference in vertical decent with the engine at idle and going form Fine pitch to Course pitch is 3500 fpm. A giant difference. With the 4 blade it is like a brake at fine pitch. However, others have told me that at course pitch they calculated a glide ratio of up to 25 to One. amazing but the speed it up there. I needed a glide number to put in the SFS EFIS because it shows a blue glide range around the airplane, corrected for wind and terrain. We all agreed on a more realistic 15 to One. Jim, Interesting. In my Lancair 320 with a Hartzell 2-blade CS prop, at flat pitch and a 1500 fpm descent with a best glide of 107 KIAS (10836 fpm) the ratio is 7.2:1 and at coarse pitch, the 500 fpm descent is a 21:1 ratio. Being generally befuddled and brain weak, I use a conservative rule of thumb of 10:1 (assuming that I can get it into coarse pitch most of the time), thus flying at 5500 AGL should give me about 10 NM to find something level or soft. Hmmmm........, maybe I can cross Lake Michigan at 15,000 MSL yielding enough glide range to handle the 25 NM to the point of no return if I fly from Manitowoc to Luddington routed from land bulge to land bulge. Once back to the shoreline, the beach becomes a touchdown possibility. Nah.... It's more comforting to fly the shoreline at the south end. Scott Krueger AKA Grayhawk Lancair N92EX IO320 SB 89/96 Aurora, IL (KARR) Fair and Balanced Opinions at No Charge! Metaphysical Monologues used at your own Risk. -------------------------------1113391983 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable

In a message dated 4/13/2005 12:47:04 A.M. Central Standard Time,=20 JIMRHER@aol.com writes:

<= FONT=20 style=3D"BACKGROUND-COLOR: transparent" face=3D"Franklin Gothic Medium"=20 color=3D#000000 size=3D3>

I have the MT 4 Blade on my L4P. the difference in vertical decent wi= th=20 the engine at idle and going form Fine pitch to Course pitch is 3500 fpm.=20= A=20 giant difference. With the 4 blade it is like a brake at fine pitch. Howev= er,=20 others have told me that at course pitch they calculated a glide ratio of=20= up=20 to 25 to One. amazing but the speed it up there. I needed a glide number t= o=20 put in the SFS EFIS because it shows a blue glide range around the airplan= e,=20 corrected for wind and terrain. We all agreed on a more realistic 15 to=20 One.

Jim,

Interesting. In my Lancair 320 with a Hartzell 2-blade CS prop, a= t=20 flat pitch and a 1500 fpm descent with a best glide of 107 KIAS (10836 fpm)=20= the=20 ratio is 7.2:1 and at coarse pitch, the 500 fpm descent is a 21:1 ratio.&nbs= p;=20 Being generally befuddled and brain weak, I use a conservative rule of=20 thumb of 10:1 (assuming that I can get it into coarse pitch most of the time= ),=20 thus flying at 5500 AGL should give me about 10 NM to find something le= vel=20 or soft.

Hmmmm........, maybe I can cross Lake Michigan at 15,000 MSL yielding=20 enough glide range to handle the 25 NM to the point of no return if I f= ly=20 from Manitowoc to Luddington routed from land bulge to land bulge. Onc= e=20 back to the shoreline, the beach becomes a touchdown possibility. Nah.= ...=20 It's more comforting to fly the shoreline at the south end.=20

Scott Krueger=20 AKA Grayhawk
Lancair N92EX IO320 SB 89/96
Aurora, IL (KARR)

Fai= r=20 and Balanced Opinions at No Charge!
Metaphysical Monologues used at your=20= own=20 Risk.

-------------------------------1113391983--