Swabur From United States of America, joined Feb 2005, 100 posts, RR: 0 Posted (7 years 8 months 1 week 2 days 21 hours ago) and read 1487 times:
Hey got a quick question , whats the difference between a 737-3H4 and 737-3Y0, a 737-5H4 and 737-5Y0, and the difference between a 737-7H4 and another type of -700 (I cant remember the other "sub series") Any help would be great.
AirxLiban From Lebanon, joined Oct 2003, 4491 posts, RR: 55 Reply 1, posted (7 years 8 months 1 week 2 days 21 hours ago) and read 1478 times:
H4 is Southwest's customer code. The 735 has the same fuselage as the 732. The 733 is longer and the 737 has the same fuselage as the 733 but its just an NG.
OPNLguy From , joined Dec 1969, posts, RR: Reply 2, posted (7 years 8 months 1 week 2 days 21 hours ago) and read 1470 times:
The last 2 characters on the right are the airline (or purchaser, i.e. a lease company) customer code...
H4 is Southwest, thus, 2H4, 3H4, 5H4, and 7H4 are the various models that Southwest has obtained from Boeing over the years. If it's something other than an H4, the aircraft originally was acquired by someone else, and Southwest later acquired it. N798SW and N799SW are good examples, and several of our -300s are not H4s...
Swabur From United States of America, joined Feb 2005, 100 posts, RR: 0 Reply 3, posted (7 years 8 months 1 week 2 days 21 hours ago) and read 1452 times:
Oh, good to know, I never knew that. So a 737-3Y0 would be purchased from another company, I get it! I did know that about the fuselage lengths, how the 735 is the same length as the 732 and so on. Thanks for the info!
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From United States of America, joined Feb 2005, 100 posts, 
From Lebanon, joined Oct 2003, 4491 posts, 
I did know that about the fuselage lengths, how the 735 is the same length as the 732 and so on. Thanks for the info!
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