I always wondered why a plane gets designated a -200 when there never was a -100. The 727 and 737 and 747 all could rationalize that change in designations because there were differences between the variants.
Anyway, cool on getting the 757! Here in Manchester, NH we've thus far had 757s only from United on two out their four flights here (the others are A320s). Next month USAirways brings this type in for two out of their 5x nonstops to PHL.
As for FedEx, we get the A310 from Indianapolis each day. In one of the stranger routings, this plane heads back out one hour after it arrives, and flies--empty--to Boston! The other day, this aircraft took off from Manchester in about 3,000 feet of runway and never pulled up its gear!!! Before our long runway was shut down for lengthening, this flight was opeated by a DC-10. UPS, though, sticks with a mix of A300-600s and 757s here...despite only our 'short' runway @ 7,500 feet being available.
Chris in NH