Bob, all:
Methinks the cables would need to be brought back to the baggage bay
bulkhead
to get the right angle, and that some guide behind the head would be
required to
ensure that they stay in the right position. It also seems that the seat
back needs to
be higher to prevent other upper back and neck injuries. We need to figure
out
a headrest that would rotate inboard to permit normal entry and luggage
stowage,
then rotate upright and lock for flight. It would have the requisite belt
guide, and
could use the present mount points in the backrest as the pivot. Made
strong enough,
you wouldn't need to extend the belt hard points back.
Shaun
----- Original Message -----
From: "Robert Berube" <bberube@tampabay.rr.com>
Subject: RE: Seat Belt Attachment Route/Spinal Compression
> Several builders here in Florida are installing hard points in various
> locations aft in the fuselage. You are right in that the present location
> can and has caused spinal compressions. Hard points located against the
> roll over structure or back by the baggage bay bulkhead are good
locations.
> Use a short length of 3/16s aircraft stainless cable with swaged fittings
> for the additional length required. If you know the exact length, you can
> order the cable with the fittings swaged or take them to a sailboat
rigging
> shop and they will gladly do it. The tool is very expensive $4000.00 to
> swage the fork ends but they do look much better than clevis ends.
> Bob Berube A166
>
> -----Original Message-----
> From: owner-europa@aztec.houxou.com
> Subject: Seat Belt Attachment Route/Spinal Compression
>
>
> I saw Bob Harrison's message on headrests but has there been any comment
or
> action on the important issue of lifting the direction of the straps over
> the shoulders to avoid compressing the spine in a crash please?
>
> JR (Bob) Gowing 327
>
>
> Shaun Simpkins' A207original posting was:-
> Subject: Seat belt mount points
>
>
> The seat belts wrap over the seat back and attach near the spar. This does
> mount to the strongest point in the airframe, but isn't the best place
> ergonomically, as it can cause spinal compression in a crash. It seems to
> me that running the straps over a guide bar mounted stoutly to the
seatback
> but at the right height to bring them straight back from the shoulders,
> thence to the existing mount points, would improve things. Has anybody
> tried this, or considered this important enough to address?
>
>
|