X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Tue, 29 Oct 2013 07:41:14 -0400 Message-ID: X-Original-Return-Path: Received: from nk11p08mm-asmtp002.mac.com ([17.158.58.247] verified) by logan.com (CommuniGate Pro SMTP 6.0.7) with ESMTP id 6568345 for lml@lancaironline.net; Tue, 29 Oct 2013 06:39:07 -0400 Received-SPF: pass receiver=logan.com; client-ip=17.158.58.247; envelope-from=gw5@me.com Received: from [10.0.1.66] (cpe-071-077-249-052.ec.res.rr.com [71.77.249.52]) by nk11p08mm-asmtp002.mac.com (Oracle Communications Messaging Server 7u4-27.08(7.0.4.27.7) 64bit (built Aug 22 2013)) with ESMTPSA id <0MVF00HWZEW64100@nk11p08mm-asmtp002.mac.com> for lml@lancaironline.net; Tue, 29 Oct 2013 10:38:32 +0000 (GMT) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:5.10.8794,1.0.431,0.0.0000 definitions=2013-10-29_03:2013-10-29,2013-10-29,1970-01-01 signatures=0 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 spamscore=0 suspectscore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=7.0.1-1308280000 definitions=main-1310290047 Subject: Re: [LML] Re: IVP Jacks References: From: George Wehrung Content-type: text/plain; charset=us-ascii X-Mailer: iPad Mail (9B206) In-reply-to: X-Original-Message-id: <63ACA2AA-2C02-4408-A877-F94F48465F99@me.com> X-Original-Date: Tue, 29 Oct 2013 06:38:29 -0400 X-Original-To: Lancair Mailing List Content-transfer-encoding: quoted-printable MIME-version: 1.0 (1.0) John, That is a really scary photo! But, I will say that you have your CG figured= out for sure.=20 Sent from my iPad On Oct 28, 2013, at 12:36, John Barrett wrote: > Hi Greg, >=20 > I made my jacks from Harbor Freight hydraulic cylinders with flat bottoms > and welded up stands around them. A lot of work and the cylinder hydrauli= cs > don't hold up all that well. Also they are not as stable as the expensiv= e > commercial ones. We were jacking up the plane outside for gear checks in > Redmond a couple years ago and light winds were really scary. I only use > inside the hangar since then and have modified them to make them a little > more stable. They are workable and now I'm pretty comfortable with them, > but investing in some good ones is not a bad alternative. The aircraft h= as > to go up so high and the jack points are close enough together that light > lateral forces will cause things to sway and wobble - makes me pucker > sometimes. =20 >=20 > The episode in the photo was on concrete apron that was not at all flat - > that added to the instability and was not a good plan. =20 >=20 > John Barrett > N31VP >=20 >=20 > The message is ready to be sent with the following file or link attachment= s: >=20 > all ipad photos 565 >=20 >=20 > Note: To protect against computer viruses, e-mail programs may prevent > sending or receiving certain types of file attachments. Check your e-mail= > security settings to determine how attachments are handled. > > -- > For archives and unsub http://mail.lancaironline.net:81/lists/lml/List.htm= l