X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mail01.syd.optusnet.com.au ([211.29.132.182] verified) by logan.com (CommuniGate Pro SMTP 5.1.2) with ESMTPS id 1553028 for flyrotary@lancaironline.net; Fri, 10 Nov 2006 17:07:32 -0500 Received-SPF: none receiver=logan.com; client-ip=211.29.132.182; envelope-from=lendich@optusnet.com.au Received: from george (58.109.52.59.optusnet.com.au [58.109.52.59] (may be forged)) by mail01.syd.optusnet.com.au (8.13.1/8.13.1) with SMTP id kAAM73gv028562 for ; Sat, 11 Nov 2006 09:07:04 +1100 Message-ID: <003b01c70514$9027f110$3b346d3a@george> From: "George Lendich" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Single Rotor Date: Sat, 11 Nov 2006 08:07:06 +1000 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0038_01C70568.60CDB4A0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2180 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 X-Antivirus: avast! (VPS 0647-0, 09/11/2006), Outbound message X-Antivirus-Status: Clean This is a multi-part message in MIME format. ------=_NextPart_000_0038_01C70568.60CDB4A0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Richard, My suggestion would be stay away from the clutches - their proven to be = a problem. The BMW damper should do the trick! George ( down under) ----- Original Message -----=20 From: Richard Sohn=20 To: Rotary motors in aircraft=20 Sent: Saturday, November 11, 2006 1:59 AM Subject: [FlyRotary] Re: Single Rotor The torque pulses are a concern. I have some runtime now with the = donut damper, which came with the gear box. If it is going to be a = problem, I would switch to a clutch, which is also available for this = gear box. Richard Sohn N-2071U ----- Original Message -----=20 From: david mccandless=20 To: Rotary motors in aircraft=20 Sent: Thursday, November 09, 2006 5:30 PM Subject: [FlyRotary] Single Rotor Hi Richard, I have been following your single rotor for some years now; glad to = see you are getting the hp up. However the reported sharp torque pulse = has me worried; what has your experience been with the torque pulse with = the single? Best Regards, Dave McCandless Europa XS On 10, Nov , at 11:21 AM, Richard Sohn wrote: Have been running the one rotor on p-port for a while. Aiming for = 115hp per rotor on 12A housings at 7500RPM(be happy with 100hp in the = end). These estimates should give 150hp for 13B housings, more likely = 130, making 260 for a 13B. I know this is worse than other p-port = proponents predict, but this is what I am working toward. If more power = (over stock) is the issue, p-port is the solution, also simplicity. I = have not found any real negatives, for air craft use, in it. =20 Richard Sohn N-2071U ------=_NextPart_000_0038_01C70568.60CDB4A0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Richard,
My suggestion would be stay away from = the clutches=20  - their proven to be a problem. The BMW damper should do the=20 trick!
George ( down under)
----- Original Message -----
From:=20 Richard = Sohn=20
Sent: Saturday, November 11, = 2006 1:59=20 AM
Subject: [FlyRotary] Re: Single = Rotor

The torque pulses are a concern. I = have some=20 runtime now with the donut damper, which came with the gear box. If it = is=20 going to be a problem, I would switch to a clutch, which is also = available for=20 this gear box.
 
Richard Sohn
N-2071U
 
 
----- Original Message -----
From:=20 david=20 mccandless
To: Rotary motors in = aircraft=20
Sent: Thursday, November 09, = 2006 5:30=20 PM
Subject: [FlyRotary] Single = Rotor

Hi Richard,
I have been following your single = rotor for=20 some years now; glad to see you are getting the hp up. However the = reported=20 sharp torque pulse has me worried; what has your experience been = with the=20 torque pulse with the single?
Best Regards, Dave McCandless = Europa=20 XS

On 10, Nov , at 11:21 AM, Richard Sohn wrote:

Have been running = the one=20 rotor on p-port for a while. Aiming for 115hp per rotor on 12A = housings at=20 7500RPM(be happy with 100hp in the end). These estimates should = give 150hp=20 for 13B housings, more likely 130, making 260 for a 13B. I know = this is=20 worse than other p-port proponents predict, but this is what I am = working=20 toward. If more power (over stock) is the issue, p-port is the = solution,=20 also simplicity. I have not found any real negatives, for air = craft use,=20 in it.
 
Richard=20 Sohn
N-2071U
 
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