Return-Path: Received: from newsierra.bnis.net ([208.145.132.210]) by truman.olsusa.com (Post.Office MTA v3.5.1 release 219 ID# 0-52269U2500L250S0V35) with ESMTP id com for ; Sat, 10 Jul 1999 17:33:29 -0400 Received: from gnaf (unverified [208.145.132.45]) by newsierra.bnis.net (Rockliffe SMTPRA 2.1.6) with SMTP id for ; Sat, 10 Jul 1999 14:29:43 -0700 Message-ID: <000d01becb1c$835ebf20$0200a8c0@gnaf> From: "Paul A. Nafziger" To: References: <19990710044939.AAA3554@truman.olsusa.com> Subject: Severe Pitch Moment with Flap Extension Date: Sat, 10 Jul 1999 14:38:12 -0700 X-Mailing-List: lancair.list@olsusa.com Mime-Version: 1.0 <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> << Lancair Builders' Mail List >> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> >> John, Small tail. Trim - Electrically controlled tab. (large) Airspeed - 100KIAS Running out of elevator? Not sure. I'm going to photo chase him next week and we'll see. CG at the time - Same problem with both forward and aft limit cgs. He's weighed the airplane twice. Once he did it and once paid a professional -- both results identical. I'm sure his experience isn't normal. He went to Redmond to fly the factory model so he'd have something to compare it with. We thought of the incidence, but it "looks" ok. Pretty hard to measure accurately with the vertical in place. Got any way of doing that? We made templates for BL50 and near the wingtip to check camber. His compares well with 3 other Lancairs at Mojave. We measured every conceivable thing we could think of and they all compare very closely. Next Saturday, we'll tuft the wing and tail and get some videos to see if we can spot any anomalies. It has to be something obvious, but we've just about run out of ideas.... Naf N7PN >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> LML homepage: http://www.olsusa.com/Users/Mkaye/maillist.html