I have always believed that the practise of opening the doors before a forced landing means to simply unlatch them but allow the slipstream to pretty much keep them flush with the fusalage. I not convinced it would even be possible to open them wide against a 55-60kt slipstream.
Oldbloke wrote:
"Don't forget that if it's rear doored(206)the flaps interfer with the doors opening-so open the doors prior to flap extension"
In this case I assume he means that the trailing edge of the door needs to be forward of the flaps as they extend... in other words, wide open. Assuming it were possible to push them this far into the slipstream, would this not have a huge destabilising effect on the aerodynamics of an already unhappy aeroplane? A bit like full rudder deflection, only worse.
I have an interest in this topic; I fly from EISG where wearing life jackets at all times is mandatory since regardless of which runway is active, an EFATO will most likely result in a swim.
Whiskey Delta