I THINK ONE OF THE BIG PROBLEMS WITH THE 757-300 IS THAT IT IS TOO LONG FOR ALOT OF ITS INTENDED MISSIONS GATE SPACE. THE EXTRA LENGTH IS POSING A PROBLEM AT MANY AIRPORTS WITH 757 AND SMALLER AIRCRAFT ALLOCATED GATE SPACE. IT WILL STICK OUT INTO THE TAXI WAY IN MANY CASES, I BELIEVE THAT IS ONE OF THE PROBLEM WE ARE RUNNING ACROSS DOES ANYONE ELSE AGREE?
The 757-300 can fit at gates, but if it's a widebody gate it'll cost the airline more to park there, and that cost has to be recouped by less pax than on a 747 or DC10.
One of the perceived problems when the 777 was introduced was the same as above, namely that it's wingspan is the same as the 747 and would need the widest gates, but with less pax this would cost the airlines more per pax. Don't know if it turned out to be a problem in practice though.
fly Saha Air 707s daily from Tehran's downtown Mehrabad to Mashhad, Kish Island and Ahwaz
The fact is that the 753 is the longest single-aisle, not compareable with longer two-aisled aircraft. Maybe in some cases the aircraft wont fit parking spaces provided for regional jets or other single-aisle planes in domestic terminals. Might be wrong, don't know exactly.
Another thing that came up is that fast loading and unloading(passengers) will not be a reality as passengers will have to cross all the aisle from the far end to reach the only jetway(most airports have only one per gate) attached to a front door. Such problems were found by lufthansa during evaluation use.
The 757-300 can use the same gates at the Boeing 767-300, so with the widespread use of that type, it shouldn't be that much of a problem. The 753, at least at EWR, will always use the 2L door for boarding at most gates, but the taxiway problem shouldn't be that big of an issue due to the angle of most of the 757 gates, especially at EWR.
I think the biggest problem will not be fitting at the gate.
Rather, it will be the loading and unloading process of passengers that will take forever. The 757-200 is already pretty slow and adding all those pax and still only one door will be horrible.
Maybe in the NW case at DTW some of the gates are going to be equipped with 2 jetways in the new terminal and they might plug a 757-300 into one of those. Otherwise...yuck boarding and deplaning will take forever.