X-Virus-Scanned: clean according to Sophos on Logan.com X-SpamCatcher-Score: 2 [X] Return-Path: Received: from imo-m28.mx.aol.com ([64.12.137.9] verified) by logan.com (CommuniGate Pro SMTP 5.1.8) with ESMTP id 1981205 for flyrotary@lancaironline.net; Thu, 12 Apr 2007 07:11:26 -0400 Received-SPF: pass receiver=logan.com; client-ip=64.12.137.9; envelope-from=Lehanover@aol.com Received: from Lehanover@aol.com by imo-m28.mx.aol.com (mail_out_v38_r8.1.) id q.cd6.d663d87 (39331) for ; Thu, 12 Apr 2007 07:10:25 -0400 (EDT) From: Lehanover@aol.com Message-ID: Date: Thu, 12 Apr 2007 07:10:25 EDT Subject: Re: [FlyRotary] Re: Mount offset To: flyrotary@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-----------------------------1176376225" X-Mailer: 9.0 Security Edition for Windows sub 5366 X-Spam-Flag: NO -------------------------------1176376225 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit In a message dated 4/12/2007 1:23:57 A.M. Eastern Daylight Time, dale.r@cox.net writes: Seems the optimal solution is no offset at all The faster you fly the more the tail will pull to the correct side. Isn't that what you want? The engine offset is to counter "P" factor during low speed flight, at high throttle settings, as in take off or a go around. This where "P" factor is most apparent and air speed and control effectiveness are the lowest. This is so you don't run out of rudder travel while trying to fly in a straight line the runway centerline. At cruise speed, where control effectiveness is the best, the fin offset is just enough so that constant rudder input is not required. The engine offset at cruise is of little value, but has little affect on top speed. Lynn E. Hanover ************************************** See what's free at http://www.aol.com. -------------------------------1176376225 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable

In a message dated 4/12/2007 1:23:57 A.M. Eastern Daylight Time,=20 dale.r@cox.net writes:

<= FONT=20 style=3D"BACKGROUND-COLOR: transparent" face=3DArial color=3D#000000 size= =3D2>Seems=20 the optimal solution is no offset at all The faster you fly the more the t= ail=20 will pull to the correct side.
Isn't that what you want?=20

The engine offset is to counter "P" factor during low speed flight, at=20= high=20 throttle settings, as in take off or a go around. This where "P" factor= is=20 most apparent and air speed and control effectiveness are the lowest. This i= s so=20 you don't run out of rudder travel while trying to fly in a straight line th= e=20 runway centerline.

At cruise speed, where control effectiveness is the best, the fin offse= t is=20 just enough so that constant rudder input is not required. The engine offset= at=20 cruise is of little value, but has little affect on top speed.

Lynn E. Hanover

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

See what's fre= e at AOL.com.=20=

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