Smoke evacuation
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Join Date: May 2002
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Smoke evacuation
Somewhere if i not mistaken I read that there is an interlocking mechanism automatically activated at 20 knots on one of the doors (i thought L1 or L4) that allowed the doors to be open in flight just a bit.
the metal bar prevent the door to blow open if the cabin is still a bit presurized. there is also a strap to the handle that prevent the total rotation into open position.
Anyone can confirm it?
the metal bar prevent the door to blow open if the cabin is still a bit presurized. there is also a strap to the handle that prevent the total rotation into open position.
Anyone can confirm it?
Join Date: Jun 2002
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Most unlikely. The aircraft I have flown pressurise themselves to -200' when take-off power is set. This is all handled by the pressurisation controller. All of the doors remain locked at all times.
Join Date: Sep 2010
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As above stated this is called pre-pressurisation, set to clean the doors up, at this point the D/P on the cabin (even .5dpsi) would make just about impossible for a human to open a door.
Such a feature neither exists on Dash or Fokker aircraft.
The Dash 8 has a manually controllable 3rd outflow valve in the forward pressure bulkhead (in addition to the two on the aft bulkhead) that can be used to flush smoke out of the cockpit in case of need.
The Dash 8 has a manually controllable 3rd outflow valve in the forward pressure bulkhead (in addition to the two on the aft bulkhead) that can be used to flush smoke out of the cockpit in case of need.
