Return-Path: Received: from relay02.roc.ny.frontiernet.net ([66.133.131.35] verified) by logan.com (CommuniGate Pro SMTP 4.2b2) with ESMTP id 3203668 for flyrotary@lancaironline.net; Mon, 03 May 2004 12:22:55 -0400 Received: (qmail 10270 invoked from network); 3 May 2004 16:22:55 -0000 Received: from 65-73-33-136.bras01.cok.tn.frontiernet.net (HELO frontiernet.net) ([65.73.33.136]) (envelope-sender ) by relay02.roc.ny.frontiernet.net (FrontierMTA 2.3.18) with SMTP for ; 3 May 2004 16:22:55 -0000 Message-ID: <40967279.D09A1A77@frontiernet.net> Date: Mon, 03 May 2004 11:25:29 -0500 From: Jim Sower X-Mailer: Mozilla 4.77 [en] (Win98; U) X-Accept-Language: en MIME-Version: 1.0 To: Rotary motors in aircraft Subject: Re: [FlyRotary] Re: Injector testing References: Content-Type: multipart/alternative; boundary="------------34D671D92B13170C6723F9DD" --------------34D671D92B13170C6723F9DD Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Just a reminder that you're encroaching on limits. But I assume you're going to test considerably past VNE anyway. I think you'll have to research flutter a little, since at your cruise altitude (15k - 18k?) your IAS will be under VNE but your TAS might be considerably in excess. There's a TAS component to flutter that needs to be examined and understood. These kinds of things are NOT "benign" failures. I think that at altitude, and if you're over propped enough, you could cruise at or a little above VNE at relatively benign power settings. Anxious to see how it all works out. You've got a LOT of flight testing ahead of you .... Jim S. John Slade wrote: > > 200 kts is 230 mph.Actually it's 230.16. What's your > point? :) -- Jim Sower ... Destiny's Plaything Crossville, TN; Chapter 5 Long-EZ N83RT, Velocity N4095T --------------34D671D92B13170C6723F9DD Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit Just a reminder that you're encroaching on limits.  But I assume you're going to test considerably past VNE anyway.  I think you'll have to research flutter a little, since at your cruise altitude (15k - 18k?) your IAS will be under VNE but your TAS might be considerably in excess.  There's a TAS component to flutter that needs to be examined and understood.  These kinds of things are NOT "benign" failures.  I think that at altitude, and if you're over propped enough, you could cruise at or a little above VNE at relatively benign power settings.  Anxious to see how it all works out.

You've got a LOT of flight testing ahead of you .... Jim S.

John Slade wrote:

  > 200 kts is 230 mph.Actually it's 230.16. What's your point? :)

--
Jim Sower ... Destiny's Plaything
Crossville, TN; Chapter 5
Long-EZ N83RT, Velocity N4095T
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