X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Mon, 25 Jan 2010 21:42:39 -0500 Message-ID: X-Original-Return-Path: Received: from elasmtp-curtail.atl.sa.earthlink.net ([209.86.89.64] verified) by logan.com (CommuniGate Pro SMTP 5.3.1) with ESMTP id 4094352 for lml@lancaironline.net; Sun, 24 Jan 2010 19:51:18 -0500 Received-SPF: none receiver=logan.com; client-ip=209.86.89.64; envelope-from=colyncase@earthlink.net DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=dk20050327; d=earthlink.net; b=qwi7kORqfVwxg+eU3W9Qq23tx7WnwzTL48kwwc0fG10Oo82xb+Ru7hnJIqjp7W0D; h=Received:Message-ID:From:To:References:Subject:Date:MIME-Version:Content-Type:X-Priority:X-MSMail-Priority:X-Mailer:X-MimeOLE:X-ELNK-Trace:X-Originating-IP; Received: from [216.57.118.190] (helo=ccaselt3) by elasmtp-curtail.atl.sa.earthlink.net with esmtpa (Exim 4.67) (envelope-from ) id 1NZDAB-0007De-5j for lml@lancaironline.net; Sun, 24 Jan 2010 19:50:43 -0500 X-Original-Message-ID: <65BF695DB5BA498CB8849FABF7A01954@nvidia.com> From: "Colyn Case at earthlink" X-Original-To: "Lancair Mailing List" References: Subject: Re: [LML] 4P Seats X-Original-Date: Sun, 24 Jan 2010 19:50:42 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_001B_01CA9D2E.82BEF6D0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5843 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5579 X-ELNK-Trace: 63d5d3452847f8b1d6dd28457998182d7e972de0d01da9405cfe0558761d19f155f3812882ec05de350badd9bab72f9c350badd9bab72f9c350badd9bab72f9c X-Originating-IP: 216.57.118.190 This is a multi-part message in MIME format. ------=_NextPart_000_001B_01CA9D2E.82BEF6D0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Christopher said, I have always wanted to be able to get in and out of our aircraft = without having to step on the pilots seat. Yes I know if you do some = gymnastics you can do it. My question is this. Does anyone know of a = modification that will let the pilots seat go further back to allow = easier access? Also, what about the height issue? I am tired of hitting = my head in turbulence. Electric seats like in a car? Thanks in advance = for the feedback. re: height, since I struggled with this myself I can report there = are several factors. The seats sit right on top of both spars so there's very little to = be done in terms of lowering the seat. One thing to think about there is that if there are vertical G's = in a crash, the only energy absorption you are going to get is from = deforming whatever is between your butt and the spars. (I don't know = what Lancair is talking about when they say they have a 20G seat. Does = that mean that after they remove your body from the wreckage the seat = may still be intact?) Anyway, so here are some factors. a) you have to really pay attention to foam thickness when you put = the seat together. b) Jim Griffen used to build a dropped seat pan. This allowed you = to get some foam underneath the center of the seat but you are still = limited by the buildup on the sides of the seat to clear the seat rails, = bolt on a layup of carbon etc. c) Some builders have pre-contoured the pan itself and then put a = very thin layer of foam over that. I don't see that this would buy = you a whole lot in a IVP unless you eliminated the seat rails = completely. d) On a IVP the common interferenc point with your head is the = front of the door frame. Therefore, if you are tall and have long = enough legs, getting yourself back a little further can help. The wedge = of foam at the bottom of the seat back tends to hold you forward. So = you think about economizing there. as far as getting the whole seat further back for loading, I = suppose it's possible but I don't know if it's very useful to get the = front of the seat further back than the front of the front spar and it = pretty much already does that. electric seat assemblies are generally far thicker (vertically) = than you could ever fit in a IVP.=20 ----- Original Message -----=20 From: Chris Alberti=20 To: lml@lancaironline.net=20 Sent: Sunday, January 24, 2010 6:07 PM Subject: [LML] 4P Seats I have always wanted to be able to get in and out of our = aircraft without having to step on the pilots seat. Yes I know if you do = some gymnastics you can do it. My question is this. Does anyone know of = a modification that will let the pilots seat go further back to allow = easier access? Also, what about the height issue? I am tired of hitting = my head in turbulence. Electric seats like in a car? Thanks in advance = for the feedback. Fly Safe,=20 Christopher J. Alberti=20 President/CEO=20 Starlite Aviation Technologies LLC=20 1963 S. 39th Drive=20 Yuma, Arizona 85364=20 Phone: 928-581-2383=20 Fax: 928-329-6488=20 Email: starliteaviation@yahoo.com=20 Web Site: www.starliteat.com This message contains confidential information only for the use = of the addressee(s). If you are not the addressee, or the person = responsible for delivering it to the addressee, you are hereby notified = that reading, disseminating, distributing or copying this message is = strictly prohibited. If you have received this message by mistake, = please notify us, by replying to the sender, and delete the original = message immediately thereafter.=20 ------=_NextPart_000_001B_01CA9D2E.82BEF6D0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Christopher said,
I have always wanted to be able to get in and out of our = aircraft=20 without having to step on the pilots seat. Yes I know if you do = some=20 gymnastics you can do it. My question is this. Does anyone know of = a=20 modification that will let the pilots seat go further back to = allow easier=20 access? Also, what about the height issue? I am tired of hitting = my head=20 in turbulence. Electric seats like in a car? Thanks in advance for = the=20 feedback.
 
re: height, since I struggled with this myself I can report = there are=20 several factors.
The seats sit right on top of both spars so there's very = little to be=20 done in terms of lowering the seat.
One thing to think about there is that if there are vertical = G's in a=20 crash, the only energy absorption you are going to get is from = deforming=20 whatever is between your butt and the = spars.     (I=20 don't know what Lancair is talking about when they say they have a = 20G=20 seat.  Does that mean that after they remove your body from = the=20 wreckage the seat may still be intact?)
 
Anyway, so here are some=20 factors.
a) you have to really pay attention to foam thickness when = you put=20 the seat together.
b) Jim Griffen used to build a dropped seat pan.  This = allowed=20 you to get some foam underneath the center of the seat but you are = still=20 limited by the buildup on the sides of the seat to clear the seat = rails,=20 bolt on a layup of carbon etc.
c) Some builders have pre-contoured the pan itself and then = put a=20 very thin layer of foam over that.    I don't see = that this=20 would buy you a whole lot in a IVP unless you eliminated the seat = rails=20 completely.
d) On a IVP the common interferenc point with your head is = the front=20 of the door frame.   Therefore, if you are tall and have = long=20 enough legs, getting yourself back a little further can = help.  The=20 wedge of foam at the bottom of the seat back tends to hold you=20 forward.  So you think about economizing there.
 
as far as getting the whole seat = further back=20 for loading, I suppose it's possible but I don't know if it's very = useful=20 to get the front of the seat further back than the front of the = front spar=20 and it pretty much already does that.
 
electric seat assemblies are = generally far=20 thicker (vertically) than you could ever fit in a=20 IVP.
----- Original Message -----
From:=20 Chris Alberti
Sent: Sunday, January 24, 2010 = 6:07=20 PM
Subject: [LML] 4P Seats

I have always wanted to be able to get in and out = of our=20 aircraft without having to step on the pilots seat. Yes I know = if you do=20 some gymnastics you can do it. My question is this. Does anyone = know of=20 a modification that will let the pilots seat go further back to = allow=20 easier access? Also, what about the height issue? I am tired of = hitting=20 my head in turbulence. Electric seats like in a car? Thanks in = advance=20 for the feedback.

Fly Safe,

Christopher J. Alberti=20
President/CEO
Starlite Aviation Technologies LLC =
1963 S.=20 39th Drive
Yuma, Arizona 85364
Phone: 928-581-2383 =
Fax:=20 928-329-6488
Email: starliteaviation@yahoo.com =
Web Site: www.starliteat.com

This message = contains=20 confidential information only for the use of the addressee(s). = If you=20 are not the addressee, or the person responsible for delivering = it to=20 the addressee, you are hereby notified that reading, = disseminating,=20 distributing or copying this message is strictly prohibited. If = you have=20 received this message by mistake, please notify us, by replying = to the=20 sender, and delete the original message immediately=20 = thereafter.

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