I fly on US 734's about twice a month on PHL-FLL-PHL, and I find that on the safety card, some say 737-400, while others say 737-400 EOW. I assume EOW stands for Extended over water, but what is the difference between the two?
Chief A.net college football stadium self-pic guru
The chief difference is an auxiliary fuel tank fitted fwd of the aft cargo compartment. These will have 77_-78_ ( I don't remember the exact numbers...we have too many damn airplanes for me to keep 'em straight ) series tail numbers as opposed to the 404-449 series of regular 400's. Long range -300's are similarly equipped and have 500 series tail numbers as opposed to 300 series tail numbers on regular 737-300's.
The EOW designation is for those 737-400's that US Airways flies to Caribbean destinations and hence,
over water, from PHL, CLT, and LGA. The 737-400
was used on transcontinental flights from CLT and
BWI and possibly PHL for a time, before the 757's
and eventually the A319/A320's arrived.