Return-Path: Received: from spdmbaaa.compuserve.com ([149.174.206.153]) by ns1.olsusa.com (Post.Office MTA v3.5.3 release 223 ID# 0-64832U3500L350S0V35) with ESMTP id com for ; Sun, 7 Jan 2001 10:38:31 -0500 Received: (from mailgate@localhost) by spdmbaaa.compuserve.com (8.9.3/8.9.3/SUN-1.9) id KAA17414 for lancair.list@olsusa.com; Sun, 7 Jan 2001 10:46:46 -0500 (EST) Date: Sun, 7 Jan 2001 10:46:25 -0500 From: Lynda Frantz Subject: Rudder tab Sender: Lynda Frantz To: "INTERNET:lancair.list@olsusa.com" Message-ID: <200101071046_MC2-C0DE-C021@compuserve.com> X-Mailing-List: lancair.list@olsusa.com Reply-To: lancair.list@olsusa.com Mime-Version: 1.0 <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> << Lancair Builders' Mail List >> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> >> >Did you install a trim tab and not need it? Did you not install one and wish you had?< M experience with N71JF would indicate that rudder is required during initial climb, cross wind landings and perhaps steep turns. It is not advisable to trim for these modes of flight thus an electric rudder trim would be useless. My kit came with a vertical stab that had two problems. It had more camber on one side than the other and had a built in twist. Both needed to be corrected in order to avoid a built in yaw. I've heard of Lancairs that would trim with with a tab at cruise speeds but not at other speeds. I suspect these machines were not built very straight and would have benefited by a rudder trim system. The correct answer for you depends upon how straight you built your bird. Assuming that it is straight, plan in the worse case installing a fixed tab. N71JF needed neither a rudder tab or trim. Jim Frantz >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> LML website: http://www.olsusa.com/Users/Mkaye/maillist.html LML Builders' Bookstore: http://www.buildersbooks.com/lancair Please send your photos and drawings to marvkaye@olsusa.com. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>