Return-Path: Sender: (Marvin Kaye) To: lml@lancaironline.net Date: Thu, 25 Sep 2003 20:50:21 -0400 Message-ID: X-Original-Return-Path: Received: from offramp.i2k.com ([63.94.12.5] verified) by logan.com (CommuniGate Pro SMTP 4.1.4) with ESMTP id 2604072 for lml@lancaironline.net; Thu, 25 Sep 2003 20:41:48 -0400 Received: from dwhome (o35-46.i2k.com [63.106.164.46]) by offramp.i2k.com (8.12.10/8.12.10) with SMTP id h8Q0fjDw014759 for ; Thu, 25 Sep 2003 20:41:45 -0400 (EDT) X-Original-Message-ID: <013901c383c6$f8cfff50$2ea46a3f@dwhome> From: "D&BWILLS" X-Original-To: "Lancair Mailing List" References: Subject: Re: [LML] Re: Aerobatics X-Original-Date: Thu, 25 Sep 2003 20:41:48 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0136_01C383A5.70FFA330" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1158 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 This is a multi-part message in MIME format. ------=_NextPart_000_0136_01C383A5.70FFA330 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable the +9g and -6g loading is for the wing only. I suspect the rest of = the of the plane could fall apart much sooner (320/360) it is also = subjected to high G-loads. I would keep within +3.5 to -1 myself for a = good built 360. I've seen stress cracks under the belly where the inner = gear door cutouts meet the belly. This is slightly inboard of the wing = root, from 360's that I was told were rolled. I can't imagine the load = on engine mounts when you compile the high G-loads with gyroscopic loads = of the power plant ( you may have a sudden C/G change, and become a = whole lot lighter ). I know there are people doing this, but I want the = margin of structural failure on my side.=20 As far as bailing out, good luck getting the canopy open unless your = stopped in mid air. I'm trying to figure a spring loaded front hinge = release, with a T-stop that doubles as a latch at the rear of the canopy = so the canopy will flip up from the front like a lid and not slide back = into my face. When I did the air combat thing they had an exit procedure to minimize = the risk of hitting the tail section on exit. I think this would be a = good idea with my plane if I can ever get the darn thing built. as for the gyros getting trashed, get some RC Allan's without stops, or = spend more and get a caged gyro. Dale Wills 360 Builder The RV, however is rated for aerobatics...the Lancair is not. I beg to differ. The Lancair 320/360 has an ultimate stress loading = of +9g and -6g. The manual gives entry speed recomendations for various = aerobatic manuevers. Rick Argente N360ZR ------=_NextPart_000_0136_01C383A5.70FFA330 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

the +9g and -6g loading is for the wing = only. I=20 suspect the rest of the of the plane could fall apart much sooner = (320/360)=20 it is also subjected to high G-loads. I would keep within +3.5 to -1 = myself for=20 a good built 360. I've seen stress cracks under the belly where the = inner gear=20 door cutouts meet the belly. This is slightly inboard of the wing root, = from=20 360's that I was told were rolled. I can't imagine the load on engine = mounts=20 when you compile the high G-loads with gyroscopic loads of the power=20 plant ( you may have a sudden C/G change, and become a=20 whole lot lighter ). I know there are people doing this, but I = want=20 the margin of structural failure on my side.

As far as bailing out, good luck = getting the canopy=20 open unless your stopped in mid air. I'm trying to figure a spring = loaded front=20 hinge release, with a T-stop that doubles as a latch at the rear of = the=20 canopy so the canopy will flip up from the front like a lid and not = slide back=20 into my face.

When I did the air combat thing they = had an exit=20 procedure to minimize the risk of hitting the tail section on exit. I = think this=20 would be a good idea with my plane if I can ever get the darn thing=20 built.

as for the gyros getting trashed, get = some RC=20 Allan's without stops, or spend more and get a caged = gyro.

Dale Wills

360 Builder

The RV, however is rated for
aerobatics...the = Lancair is=20 not.

I=20 beg to differ. The Lancair 320/360 has an ultimate stress = loading of +9g=20 and -6g. The manual gives entry speed recomendations for various = aerobatic manuevers.

Rick=20 Argente
N360ZR

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