Hi Ira,
Valid points, but I am not proposing any structural modifications whatsoever
- just simply making the *existing* hinge pins removable (tho still captured
for normal use) and pulling them out of the hinges in an emergency via thin
cables attached to an 'emergency' hanle which would be recessed and
ornamentally covered to avoid inadvertently pulling it (during one of those
"what's that" passenger mements).
Shouldn't weigh more than a few 10s of grams either. Well worth the
capability to exit when upside down.
...but thinking further - you mean I shouldn't plan on flying my long wings
with the doors and engine off? That would have given it a real hang-glider
feel ;-)
Cheers & thx,
Pete
A239
On Wed, Nov 18, 2009 at 2:56 PM, rampil <ira.rampil@gmail.com> wrote:
>
> Re internal quick-release hinges for door
>
>
> Hi Peter,
>
> Are you accounting for the compression/tension of the upper door as an
> important structural member of the fuselage. It is my recollection that
> the upper hinges and door frame are structural, not ornamental. I have
> not done a FEA of the Europa but just looking suggests that the cockpit
> roof and door members are in tension holding the fuselage from folding
> down during flight.
>
> Before committing to a change in aircraft structure, I'd really suggest
> that you check with Andy, Dave, or Bud.
>
> Good Luck,
>
> Ira
>
> --------
> Ira N224XS
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=273589#273589
>
>
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