"bob" wrote in message
. ..
How serious is it on small twin engines with only one door? Or with 2
doors, for that matter?

A friend of mine tells me that he once had a twin engine Piper crash to
investigate due to ditching. It was later learned upon the conclusion of
the investigation that a passenger in the back seat was trying to switch
places with someone in the front and the door inadvertently popped open.
At that point the investigator determined, from his own similar
experience, that the plane sunk like a rock due to critical disruption of
the airflow to that could not be corrected in flight.
--The door could not be closed again!---

As for my friend with his similar experience, his friend's hand was all
bloody from trying to hold it closed as much as he could. Fortunately,
they made a safe emergency landing at an island the just happened to be
nearby.

I've only flow small single engines and had NO IDEA how serious this
could be. They don't teach you that in flight school. Or is it because
single engines with only one door do not react the same as the twins.

Tell me the straight skinny so I know next time I go flying.

Thanks

1965 Beech Travelair, two adults with bags, full fuel, still well under
gross, 500' MSL, gear up, flaps up, nice cool spring day, normal climb out =
1100 FPM, door pops open = 300 FPM, been there, done that :-(

Allen