Mailing List lml@lancaironline.net Message #69535
From: <marv@lancair.net>
Subject: Re: [LML]Need to move front seats aft on a IV-P
Date: Fri, 21 Mar 2014 14:04:25 -0400
To: <lml>



Posted for Dave & Neva Skinner <skinner3410@sbcglobal.net>:

> Brian, they do not have the gussets, nor do they have the extension pads to
>the rear of the flange other than the straps I mentioned earlier.  I am
>attaching a picture of how it was before I started this little project.
>
>
>
> ________________________________
>From: Colyn Case <colyncase@earthlink.net>
> To: Lancair Mailing List <lml@lancaironline.net>
> Sent: Friday, March 21, 2014 10:52 AM
> Subject: [LML] Re: Need to move front seats aft on a IV-P
>
>
>
> Has anyone figured out what size screws you would need to handle the shear
>forces for the worst survivable horizontal deceleration?   The ones in my
>plane strike me as very undersized.
>
> Colyn
>
>
>
> On Mar 21, 2014, at 8:07 AM, Gary Casey wrote:
>
> On my ES I fabricated a couple of stainless steel brackets from fairly thick
>sheet metal (forgot how thick).  They are each bolted to the spar
>carry-through with 2 -3 bolts  the spar itself carries the download, with any
>upload carried by the brackets.  I used -3 bolts and nuts to hold the seat
>rail to the brackets.  In the front I used aluminum angles with nutplates and
>long -3 bolts.  Works good and the seats are reasonably easy to get out.  I
>also put 1-inch phenolic spacers under the front rails to tilt the seats back
>and give a little more leg room.
> Gary Casey
>
>
> Has anyone with a IV-P found a good way to move the front seats aft about 3=
> -4 inches?=A0 I don't need the rear seat leg room, but I could use more in =
> the front.=A0 Moving the rails rearward would cantilever them quite a ways =
> behind the spar box.=A0 I haven't figured out how I would support the rear =
> ends of the rails.

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