X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml Date: Fri, 17 Nov 2006 01:49:31 -0500 Message-ID: X-Original-Return-Path: Received: from vms046pub.verizon.net ([206.46.252.46] verified) by logan.com (CommuniGate Pro SMTP 5.1.2) with ESMTP id 1575202 for lml@lancaironline.net; Fri, 17 Nov 2006 01:31:21 -0500 Received: from jacky0da39824a ([71.111.139.56]) by vms046.mailsrvcs.net (Sun Java System Messaging Server 6.2-6.01 (built Apr 3 2006)) with ESMTPA id <0J8V0030F3F75GG3@vms046.mailsrvcs.net> for lml@lancaironline.net; Fri, 17 Nov 2006 00:30:46 -0600 (CST) X-Original-Date: Thu, 16 Nov 2006 22:30:40 -0800 From: "Tom Gourley" Subject: Re: [LML] Re: Down anywhere !! spinning X-Original-To: "Lancair Mailing List" Reply-to: "Tom Gourley" X-Original-Message-id: <003101c70a11$e7845640$640610ac@jacky0da39824a> MIME-version: 1.0 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2900.2962 X-Mailer: Microsoft Outlook Express 6.00.2900.2869 Content-type: multipart/alternative; boundary="----=_NextPart_000_002E_01C709CE.D8B2FBF0" X-Priority: 3 X-MSMail-priority: Normal References: This is a multi-part message in MIME format. ------=_NextPart_000_002E_01C709CE.D8B2FBF0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable "Hmmm... Tom, what airplanes are we talking about? C152s? If it had two = needle-ball isntruments, one on the left and one of the rightpanel, = would they show the plane was yawing both ways at once?. This is = strange." The article which discussed the ball behavior was written after the = author went through spin training in C152 Aerobat. In fact, according = to the article, this aircraft had two turn coordinators installed; one = on the left side of the panel and one on the right. The author stated = that during a spin, regardless of direction, the ball on the left side = of the panel would deflect to the left while the ball on the right side = of the panel would deflect to the right. While this may not be = intuitive (it was not to me) if you think about it for a bit it gives = some interesting insight into what the plane is doing while in a spin. = Something else to remember is that fuel in the wing tanks reacts the = same way as the ball; i.e. it will slosh to the outside of both tanks. = The author said that somewhere between 8 and 13 turns the engine would = quit so they always did their spins within gliding distance of an = airport, even though they were always able to get the engine restarted. Tom Gourley=20 ------=_NextPart_000_002E_01C709CE.D8B2FBF0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
"Hmmm... Tom, what = airplanes=20 are we talking about? C152s?  If it had two needle-ball = isntruments, one on=20 the left and one of the rightpanel, would they show the plane was yawing = both=20 ways at once?. This is strange."
 
The article which discussed the = ball behavior=20 was written after the author went through spin training in C152 = Aerobat. =20 In fact, according to the article, this aircraft had two turn = coordinators=20 installed; one on the left side of the panel and one on the right.  = The=20 author stated that during a spin, regardless of direction, the ball on = the left=20 side of the panel would deflect to the left while the ball on the right = side of=20 the panel would deflect to the right.  While this may not be = intuitive (it=20 was not to me) if you think about it for a bit it gives some interesting = insight=20 into what the plane is doing while in a spin.  Something else to = remember=20 is that fuel in the wing tanks reacts the same way as the = ball; i.e.=20 it will slosh to the outside of both tanks.  The = author said=20 that somewhere between 8 and 13 turns the engine would quit so = they=20 always did their spins within gliding distance of an airport, even = though=20 they were always able to get the engine restarted.
 
Tom Gourley 
 
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