Return-Path: Sender: (Marvin Kaye) To: lml@lancaironline.net Date: Thu, 05 Feb 2004 19:09:48 -0500 Message-ID: X-Original-Return-Path: Received: from imo-r06.mx.aol.com ([152.163.225.102] verified) by logan.com (CommuniGate Pro SMTP 4.1.8) with ESMTP id 2977430 for lml@lancaironline.net; Thu, 05 Feb 2004 15:10:52 -0500 Received: from Epijk@aol.com by imo-r06.mx.aol.com (mail_out_v36_r4.12.) id q.36.50a6a3a0 (3988) for ; Thu, 5 Feb 2004 15:10:48 -0500 (EST) From: Epijk@aol.com X-Original-Message-ID: <36.50a6a3a0.2d53fd47@aol.com> X-Original-Date: Thu, 5 Feb 2004 15:10:47 EST Subject: Re: [LML] Re: Propeller Heads, Help! X-Original-To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_36.50a6a3a0.2d53fd47_boundary" X-Mailer: 7.0 for Windows sub 10708 --part1_36.50a6a3a0.2d53fd47_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Scott: Good to hear that the blade actually has a Hartzell number which allows the removal of the 7". re:....Note, however, that I use a Harmonic Damper (or dampener, if you wish).... I assume you're referring to the Landoll type "damper". If so, believe me that it has WAY less effectiveness at removing the damaging 6th and 8th order torsionals which the Lyc pendulous c-wts are tuned for. In fact, I don't think it is tuned for any order or frequency in particular. re:.....I find the smoothest operation above 2600 rpm, acceptable in the 2300-2550 rpm, and ugly in the below 2200 rpm range... I rest my case!. Good luck. Jack Kane --part1_36.50a6a3a0.2d53fd47_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable Scott:
Good to hear that the blade actually has a Hartzell number which allows the=20= removal of the 7".

re:....Note, however, that I=20= use a Harmonic Damper (or dampener, if you wish)....=

I assume you're referring to the Landoll type "damper". If so, believe me th= at it has WAY less effectiveness at removing the damaging 6th and 8th order=20= torsionals which the Lyc pendulous c-wts are tuned for.   In fact,= I don't think it is tuned for any order or frequency in particular.

re:.....I find the smoothest operation above 2600 rp= m, acceptable in the 2300-2550 rpm, and ugly in the below 2200 rpm range...<= /FONT>

I rest my case!.

Good luck.
Jack Kane

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