X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Thu, 27 Apr 2006 01:30:01 -0400 Message-ID: X-Original-Return-Path: Received: from imo-d03.mx.aol.com ([205.188.157.35] verified) by logan.com (CommuniGate Pro SMTP 5.0.9) with ESMTP id 1082267 for lml@lancaironline.net; Wed, 26 Apr 2006 18:27:29 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.188.157.35; envelope-from=Sky2high@aol.com Received: from Sky2high@aol.com by imo-d03.mx.aol.com (mail_out_v38_r7.5.) id q.3f4.79fc62 (4402) for ; Wed, 26 Apr 2006 18:26:38 -0400 (EDT) From: Sky2high@aol.com X-Original-Message-ID: <3f4.79fc62.31814d9e@aol.com> X-Original-Date: Wed, 26 Apr 2006 18:26:38 EDT Subject: Re: [LML] Re: prop tips X-Original-To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-----------------------------1146090398" X-Mailer: 9.0 Security Edition for Windows sub 5300 X-Spam-Flag: NO -------------------------------1146090398 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit In a message dated 4/26/2006 9:59:59 A.M. Central Standard Time, CustomACProp@aol.com writes: Reading between the lines about the propeller; Torque turns the propeller? And horsepower is just a way to tell how much gas will be burned? Jim, Say, let's not forget RPM. After all, HP = (RPM x Torque) / 5252 for a given engine, a fixed pitch prop produces its best thrust at some air speed and rpm. I am sure air density has an effect on efficiency, too. I think I'll stick with a constant speed prop. Nothing like a gear shift to help get the most out of my engine in those situations where I am not cruising at an optimal speed and altitude. Gas just helps the pump move some air around...... Grayhawk -------------------------------1146090398 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable

In a message dated 4/26/2006 9:59:59 A.M. Central Standard Time,=20 CustomACProp@aol.com writes:

<= FONT=20 style=3D"BACKGROUND-COLOR: transparent" face=3DArial color=3D#000000 size= =3D2>

Reading between the lines about the propeller;

Torque turns the propeller?

And horsepower is just a way to tell how much gas will be=20 burned?

Jim,

Say, let's not forget RPM. After all,

HP =3D (RPM x Torque) / 5252

for a given engine, a fixed pitch prop produces its best thrust at some= air=20 speed and rpm. I am sure air density has an effect on efficiency, too.

I think I'll stick with a constant speed prop. Nothing like a gea= r=20 shift to help get the most out of my engine in those situations wh= ere=20 I am not cruising at an optimal speed and altitude.

Gas just helps the pump move some air around......

Grayhawk

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