X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml Date: Thu, 13 Jul 2006 14:41:48 -0400 Message-ID: X-Original-Return-Path: Received: from [64.12.137.3] (HELO imo-m22.mail.aol.com) by logan.com (CommuniGate Pro SMTP 5.1c.2) with ESMTP id 1235188 for lml@lancaironline.net; Thu, 13 Jul 2006 09:25:36 -0400 Received-SPF: pass receiver=logan.com; client-ip=64.12.137.3; envelope-from=Sky2high@aol.com Received: from Sky2high@aol.com by imo-m22.mx.aol.com (mail_out_v38_r7.5.) id q.429.51fd34e (39953) for ; Thu, 13 Jul 2006 09:24:48 -0400 (EDT) From: Sky2high@aol.com X-Original-Message-ID: <429.51fd34e.31e7a3a0@aol.com> X-Original-Date: Thu, 13 Jul 2006 09:24:48 EDT Subject: Re: [LML] Re: LNC2-handling without nose strut inflation X-Original-To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-----------------------------1152797088" X-Mailer: 9.0 Security Edition for Windows sub 5318 X-Spam-Flag: NO -------------------------------1152797088 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit In a message dated 7/13/2006 8:03:58 A.M. Central Standard Time, n103md@yahoo.com writes: The functional purpose of the nose strut is : 1) to hold the wheel in the right place relative to the airframe, 2) to absorb some energy on less graceful landings, and 3) allow the nose to rise gently on takeoff so the pilot has a moment to find the right elevator position. A rubber hose clamped to the strut can allow the strut to serve #1 well, #2 adequately, and #3 not so well. In my view, that is sufficient to allow a safe flight by someone who knows how to fly a Lancair in the first place. Consider that many airplanes are flying with little or no shock absorption in the nose gear. It's probably better than the rock-hard mooney donuts that used to be on the mains of my LNC2. If I were facing considerable inconvenience versus flying with a deflated nose strut plus radiator hose and hose clamps, I would clamp on the hose, and give the nose a few tugs up and down to insure proper takeoff attitude and prop clearance. If it passed those tests, I would fly it home. The greatest risk would be ridicule on the LML :-) OK, Here's the ridicule. You forgot function #4. Adequately filled with fluid and nitrogen, the strut also provides shimmy damping. Why is that important? Well, without such damping, the possibility of instantaneous destructive vibration of the nose wheel can cause a gear collapse, fracturing the engine mount or other structural failures. Perhaps the metal-on-metal contact prevented shimmy from occurring, perhaps it was just luck. There is a risk when flying with a problem - especially where the consequences are not well understood. Ahh, what's ridicule? Remember "Sticks and stones (and squawks) may break my bones but names will never hurt me." Scott Krueger AKA Grayhawk Lancair N92EX IO320 SB 89/96 Aurora, IL (KARR) Abnegate Exigencies! -------------------------------1152797088 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable
In a message dated 7/13/2006 8:03:58 A.M. Central Standard Time,=20 n103md@yahoo.com writes:
<= FONT=20 style=3D"BACKGROUND-COLOR: transparent" face=3DArial color=3D#000000 size= =3D2>The=20 functional purpose of the nose strut is :
1) to hold the wheel in the r= ight=20 place relative to the airframe,
2) to absorb some energy on less grace= ful=20 landings, and
3) allow the nose to rise gently on takeoff so the pilot= has=20 a moment to
    find the right elevator position.
A=20 rubber hose clamped to the strut can allow the strut to serve #1 well, #2=20 adequately, and #3 not so well. In my view, that is sufficient to allowa=20 safe flight by someone who knows how to fly a Lancair in the first place.=20
Consider that many airplanes are flying with little or no shock absorp= tion=20
in the nose gear. It's probably better than the rock-hard mooney=20 donuts
that used to be on the mains of my LNC2.

If I were facin= g=20 considerable inconvenience versus flying with a
deflated nose strut pl= us=20 radiator hose and hose clamps, I would clamp
on the hose, and give the= =20 nose a few tugs up and down to insure
proper takeoff attitude and prop= =20 clearance. If it passed those tests,
I would fly it home. The greatest= =20 risk would be ridicule on the LML :-)
OK, Here's the ridicule.
 
You forgot function #4.  Adequately filled with fluid and nitrogen= ,=20 the strut also provides shimmy damping.  Why is that important?  W= ell,=20 without such damping, the possibility of instantaneous destructive=20 vibration of the nose wheel can cause a gear collapse, fracturing=20 the engine mount or other structural failures.  Perhaps=20= the=20 metal-on-metal contact prevented shimmy from occurring, perhaps it was=20= just=20 luck.  
 
There is a risk when flying with a problem - especially where the=20 consequences are not well understood.  Ahh, what's ridicule? Remember=20 "Sticks and stones (and squawks) may break my bones but names will neve= r=20 hurt me." =20
 
Scott Krueger=20 AKA Grayhawk
Lancair N92EX IO320 SB 89/96
Aurora, IL=20 (KARR)

Abnegate Exigencies!
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