X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Thu, 27 Dec 2012 18:26:07 -0500 Message-ID: X-Original-Return-Path: Received: from elasmtp-spurfowl.atl.sa.earthlink.net ([209.86.89.66] verified) by logan.com (CommuniGate Pro SMTP 6.0) with ESMTP id 5970926 for lml@lancaironline.net; Thu, 27 Dec 2012 14:08:14 -0500 Received-SPF: none receiver=logan.com; client-ip=209.86.89.66; envelope-from=colyncase@earthlink.net DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=dk20050327; d=earthlink.net; b=e/zxL6Mau+1Jp5VOKfFe6dZJ6VVxxMQ8xpWcBuu/GjC9g/ZLCCFVhvIbxitOenm6; h=Received:From:Mime-Version:Content-Type:Subject:Date:In-Reply-To:To:References:Message-Id:X-Mailer:X-ELNK-Trace:X-Originating-IP; Received: from [70.105.250.129] (helo=[192.168.1.24]) by elasmtp-spurfowl.atl.sa.earthlink.net with esmtpa (Exim 4.67) (envelope-from ) id 1ToInr-0003jQ-Uu for lml@lancaironline.net; Thu, 27 Dec 2012 14:07:40 -0500 From: Colyn Case Mime-Version: 1.0 (Apple Message framework v1084) Content-Type: multipart/alternative; boundary=Apple-Mail-165-356152689 Subject: Re: [LML] Re: Seat Belt update Legacy X-Original-Date: Thu, 27 Dec 2012 10:01:14 -0500 In-Reply-To: X-Original-To: "Lancair Mailing List" References: X-Original-Message-Id: X-Mailer: Apple Mail (2.1084) X-ELNK-Trace: 63d5d3452847f8b1d6dd28457998182d7e972de0d01da94049d6a3417fa3339a897e79c2af03d717350badd9bab72f9c350badd9bab72f9c350badd9bab72f9c X-Originating-IP: 70.105.250.129 --Apple-Mail-165-356152689 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii Have any IV owners eliminated the inertia reels in the front seats? On Dec 27, 2012, at 9:54 AM, Stan Fields wrote: Hello Paul, =20 I would like to know more about how you mounted the shoulder straps. I = am planning to do the same and don't need to re-invent what you've = already done. =20 Stan Fields L2KR/G # 201 Austin =20 From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of = Paul Miller Sent: Wednesday, December 26, 2012 8:58 PM To: lml@lancaironline.net Subject: [LML] Seat Belt update Legacy =20 I made a safety and comfort upgrade with my Legacy recently and = installed 6-point Simpson belts. Here are the details and a few things = to consider based on input from safety expert Butch Stevens of Simpson = who supplied the new belts: =20 1) I removed the inertial reels based on Butch's recommendation because = reels are not reliable in high-G impacts. I also shortened the = shoulder straps and bolted them behind the seats. Belts stretch 15% in = an accident so if you want maximum protection from panel impact, remove = the long straps from the roof and shorten them as much as possible. =20 2) These Simpson belts and hardware are rated to 14,000 pounds. = Testing shows that most 3,000 lb rated belts don't make that figure. = Butch's Citabria belts only tested to 1800lb before failure. Original = hardware on our TBM 700s failed at 600lb before we complained and an AD = came out on the French hardware. Butch's tests on Hooker failed at less = than 3,000lb. =20 3) Belts lose 50% of their strength in two years from sunlight exposure. =20 4) High G pullups and crashes without the 6-points (crotch straps) often = find the pilot squeezed down near the rudder pedals because they slide = underneath the lap belts. You must have the 6 points to avoid this = problem. =20 I installed the crotch straps to the same mounting point with the lap = belts. I don't believe the mounting location of the lap belt on the = center console will hold 3,000 lbs from what I saw on the Legacy so I = will have to review that at a later date. I believe the hard point on = the seat back and the fuselage will probably hold. I was thinking maybe = of bonding an attach point to the rear spar but I have no data yet on = how that might work for the crotch straps. =20 The incremental cost was low for me. I sold the old hardware, TSO'd = belts and reels on ebay for $250 to a Alaska pilot. This setup from = Simpson is available for $299 which is inexpensive for the high quality = and ability to handle higher loads and shocks. =20 =46rom a comfort perspective, many of my flights are cross country and = the inertial reels always had me bouncing around the cockpit going = through Montana in the afternoon or in Texas during the summer. With = these hard points, I cinch down and become one with the airplane. = Control is better in turbulence and I feel liked I'm locked in a little = tighter. The setup is comfortable during long flights. =20 Contact me if you'd like more info on how I attached these shoulder = straps or if you have data on mounting the other points. =20 Paul Spruce Creek =20 --Apple-Mail-165-356152689 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=us-ascii Have any IV owners eliminated the inertia reels in = the front seats?

On Dec 27, 2012, at 9:54 AM, Stan = Fields wrote:

Hello = Paul,
I = would like to know more about how you mounted the shoulder straps. I am = planning to do the same and don't need to re-invent what you've already = done.
Stan = Fields
From: Lancair Mailing List = [mailto:lml@lancaironline.net] On Behalf Of Paul = Miller
Sent: Wednesday, December 26, = 2012 8:58 PM
To: lml@lancaironline.net
Subj= ect: [LML] Seat = Belt update Legacy
 
I made a safety and = comfort upgrade with my Legacy recently and installed 6-point Simpson = belts.  Here are the details and a few things to consider based on = input from safety expert Butch Stevens of Simpson who supplied the new = belts:
1) I removed the inertial = reels based on Butch's recommendation because reels are not reliable in = high-G impacts.   I also shortened the shoulder straps and bolted = them behind the seats.   Belts stretch 15% in an accident so if you = want maximum protection from panel impact, remove the long straps from = the roof and shorten them as much as = possible.
2) These Simpson belts = and hardware are rated to 14,000 pounds.   Testing shows that most = 3,000 lb rated belts don't make that figure.   Butch's Citabria = belts only tested to 1800lb before failure.   Original hardware on = our TBM 700s failed at 600lb before we complained and an AD came out on = the French hardware.  Butch's tests on Hooker failed at less than = 3,000lb.
3) Belts lose 50% of = their strength in two years from sunlight = exposure.
4) High G pullups and = crashes without the 6-points (crotch straps) often find the pilot = squeezed down near the rudder pedals because they slide underneath the = lap belts.  You must have the 6 points to avoid this = problem.
I installed the crotch = straps to the same mounting point with the lap belts.  I don't = believe the mounting location of the lap belt on the center console will = hold 3,000 lbs from what I saw on the Legacy so I will have to review = that at a later date.  I believe the hard point on the seat back = and the fuselage will probably hold. I was thinking maybe of bonding an = attach point to the rear spar but I have no data yet on how that might = work for the crotch straps.
 
The = incremental cost was low for me.  I sold the old hardware, TSO'd = belts and reels on ebay for $250 to a Alaska pilot.  This setup = from Simpson is available for $299 which is inexpensive for the high = quality and ability to handle higher loads and = shocks.
=46rom a comfort = perspective, many of my flights are cross country and the inertial reels = always had me bouncing around the cockpit going through Montana in the = afternoon or in Texas during the summer.  With these hard points, I = cinch down and become one with the airplane.  Control is better in = turbulence and I feel liked I'm locked in a little tighter.  The = setup is comfortable during long = flights.
Contact me if you'd like = more info on how I attached these shoulder straps or if you have data on = mounting the other points.
 
Spruce = Creek