vikkyvik
Posts: 11808
Joined: Thu Jul 31, 2003 1:58 pm

Comparison Of Exit Doors On The 757-300

Fri Aug 08, 2003 3:24 pm

Just wondering....the 757-300 has 4 doors and 2 window exits on either side. however, the 767-300 has some combination of 4 total exits, with a comparable capacity. the 767-400 only has 4 doors on either side. Even the 777-200 only has 4 doors on either side, despite a significantly greater capacity than the 757. I have never really understood this discrepancy. It just seems that the 757-300 has a far greater number of exits per passenger than do most airliners. Does the -300 have too many exits, or should other airliners have more exits to facilitate evacuations and escape? I appreciate any input...
~Vik
I'm watching Jeopardy. The category is worst Madonna songs. "This one from 1987 is terrible".
 
by188b
Posts: 549
Joined: Sun Jul 27, 2003 10:46 am

RE: Comparison Of Exit Doors On The 757-300

Fri Aug 08, 2003 3:42 pm

maybe its got something to do with the fact that the 753 is a single aisle aircraft and the 763 and 764 are twin aisled aircraft........
next flights : BD LHR-TXL J, FR SXF-STN Y, SN BRU-LHR Y, MA LHR-BUD Y, BA BUD-LHR J, BA LCY-SNN-JFK J, BA JFK-LHR J, BA
 
vikkyvik
Posts: 11808
Joined: Thu Jul 31, 2003 1:58 pm

RE: Comparison Of Exit Doors On The 757-300

Fri Aug 08, 2003 3:59 pm

BY188B - that was one of my theories, thanks for the input.
I'm watching Jeopardy. The category is worst Madonna songs. "This one from 1987 is terrible".
 
pilottim747
Posts: 1577
Joined: Tue Jul 17, 2001 2:34 pm

RE: Comparison Of Exit Doors On The 757-300

Fri Aug 08, 2003 4:33 pm

I think they need that many exits because the B753 is a single-aisle (and very long) aircraft. Current FAA regulations say that to be airworthy, the aircraft needs to be capable of an evacuation in 90 seconds with only half the available exits. That's not easy, especially with the congestion of a single-aisle aircraft.


View Large View Medium
Click here for bigger photo!

Photo © Ben Wang



pilottim747
Aviation Photographers & Enthusiasts--Coordinate your life.
 
Rick767
Posts: 2613
Joined: Sun Jan 30, 2000 8:11 pm

RE: Comparison Of Exit Doors On The 757-300

Fri Aug 08, 2003 5:50 pm

It's a combination of the fact that the 757 is single-aisle and that the doors on aircraft like the 767 / 777 are double width (and so in theory two passengers at once should be able to evacuate side-by-side).
I used to love the smell of Jet-A in the morning...