I think simple CFD is great but think it unwise to distribute snap shot s as
they
can be taken out of context. The Europa fuse and canopy Are classic in form
and will generate a range of differential pressures depending on speed, alpha,
beta and altitude.
The net lift on the door can be calculated using data from a full sweep. But
that
just tells us what we already know - that doors do depart the aircraft if
the front pin disengages from the front socket.
In designing an alternate to the UglyMod, utilising a simple shear pin that is
inserted from inside, we retain the clean external shape of the aircraft.
It prevents the door opening enough to be ripped off.
Emergency opening of the canopy from outside is achieved with a pry bar.
Time will tell if the LAA is receptive.
--------
John Wighton
Europa XS trigear G-IPOD
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