samair
Posts: 194
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Aircraft Doors

Tue Jun 14, 2005 2:49 am

aircraft doors how do they work and how heavy are they?
thanks sam air
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troubleshooter
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RE: Aircraft Doors

Tue Jun 14, 2005 4:26 am

Most doors in pressurised areas on todays airliners are "plug-type" doors. That means the opening area is smaller than the door area. When the door is closed it is held in position by door stops and lock bolts. The higher pressure inside the cabin presses the doors in their frame. A rubber seal is used to prevent leakage. Door open/close and locking mechanism vary from type to type. Doors an big aircrafts are very heavy. But I don´t know an exact weight.

Hope my answer gives you a rough idea. I know it was held very general. If you have more specific questions, please let me know. I´m sure some people here will be able to answer, too.
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320tech
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RE: Aircraft Doors

Tue Jun 14, 2005 6:55 am

Your question is a little too general to give a decent answer. The A320 pax door lifts up to clear door stops, then swings out on a support arm. The 767 lifts up into the ceiling area. Lots of variation, no simple answer. What sort of info are you looking for?
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samair
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RE: Aircraft Doors

Wed Jun 15, 2005 12:14 am

erm lets say the 737 how do the doors on that a/c work and how heavy are they and are they hard to open?
Thanks,
Sam air
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Airplanepics
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RE: Aircraft Doors

Wed Jun 15, 2005 2:18 am

Quoting Samair (Reply 3):
erm lets say the 737 how do the doors on that a/c work and how heavy are they and are they hard to open?


To close the door, you have to press a button on the arm holding the door to the fuselarge, and then pull a handle located on the panel of the door.

You then have to turn the handle clockwise to close and lock the door.

To open, you turn the handle anti clockwise, and push the door out at the same time.

Not that hard to open/close, I prefer the Airbus doors, you can literally use one finger to slide open the door, it just glides along the supports!

Simon.
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HAWK21M
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RE: Aircraft Doors

Wed Jun 15, 2005 4:45 pm

Quoting Airplanepics (Reply 4):
I prefer the Airbus doors, you can literally use one finger to slide open the door, it just glides along the supports!

The A320 doors also have Pneumatic assist in Emergency compared to the B737s.
regds
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Icelandair
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RE: Aircraft Doors

Wed Jun 15, 2005 8:57 pm

What about those on a 757??
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miamiair
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RE: Aircraft Doors

Wed Jun 15, 2005 9:04 pm

As for the weight and dimensions of the door assemblies:

707, 727 & 737: 126 pounds, 37" X 72"

747: 195 pounds, 42" X 69"

767: 96 pounds, 44" X 75"
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Airplanepics
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RE: Aircraft Doors

Wed Jun 15, 2005 9:07 pm

Quoting Icelandair (Reply 6):
What about those on a 757??

Same doors as the 737 I believe.
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miamiair
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RE: Aircraft Doors

Wed Jun 15, 2005 9:10 pm

757 is a heavier door than on a 737. The 757 door has 14 stops and 4 roller cams for locking.

757 #1 Passenger door, L/H is 30" wide X 65" high and weighs 314 pounds.
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Airplanepics
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RE: Aircraft Doors

Wed Jun 15, 2005 9:12 pm

Quoting Miamiair (Reply 9):

757 #1 Passenger door, L/H is 30" wide X 65" high and weighs 314 pounds.

So is smaller than the 737?
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miamiair
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RE: Aircraft Doors

Wed Jun 15, 2005 9:21 pm

The #2 Passenger door on the 757 is 33" X 66" and weighs 182 pounds.

A trivial fact, the Main Entry Door on the 707, 727 and 737 are interchangeable*.

*-One dash number onlt of the 50-7945.
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RedDragon
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RE: Aircraft Doors

Wed Jun 15, 2005 11:41 pm

Some (okay, all) of the weights quoted seem... odd. Miamiair, are you sure about all these? Surely the 757 L1 door doesn't weigh two and a half times that of a 737's? (And surely it's taller than 5'5"  Wink)

Rich
 
miamiair
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RE: Aircraft Doors

Thu Jun 16, 2005 12:02 am

The data I have provided comes from the Boeing CMM's. I will admit the 757 L1 door seems a bit high.
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bwaflyer
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RE: Aircraft Doors

Sat Jun 18, 2005 12:04 am

The 757 doors have power assisst when armed. How we laughed when I opened the door on the sim and didn't let go and got dragged out of the sim!!

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