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Question Regarding 737s  
User currently offlineBridogger6 From United States of America, joined Apr 2005, 719 posts, RR: 9
Posted (10 years 3 months 11 hours ago) and read 2498 times:

What are some of the main differences between the 737-300, 400, and 500 series? Just curious as I find it difficult to tell from outward appearance, thanks in advance.

3 replies: All unread, jump to last
User currently offlineLeonB1985 From , joined Dec 1969, posts, RR:
Reply 1, posted (10 years 3 months 11 hours ago) and read 2492 times:

Errm - length and consequently passenger capacity. I've always found them relatively easy to tell apart. The -400s have two overwing exits, so can be distinguished from the -300 and -500. The -500 is noticably shorter than the -300. Hope this helps  Smile

[Edited 2006-02-27 03:12:13]

User currently offlineDFW13L From , joined Dec 1969, posts, RR:
Reply 2, posted (10 years 3 months 11 hours ago) and read 2478 times:

The 737-300 and 400 are similar, but the 400 is a bit longer, and it is actually a bit more rare.

If you look at the engines, it seems to me that each model has the engine a bit more rounded than the last, with the 300 the flattest.

The 737-500 is the shortest of the fleet.

The 737-700 is long, but the 800 is longer than 700 and 900 is longer than 800.

I know that the 800 and 900 have 2 exit doors over each side of the wing, and I'm not sure if the 700 does.

The last time I flew USAirways, I noticed that it looks like the registration of their 737s begins with the series number, such as a 737-300 has registration N305US for example. That may be flawed as I usually don't have much to do with that airline.

Look for a Continental 737-900. That thing is LONG

User currently offlineMtnWest1979 From United States of America, joined Nov 2005, 2912 posts, RR: 1
Reply 3, posted (10 years 3 months 11 hours ago) and read 2478 times:
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Well, the -400 is the only of the 3 with 2 overwing emergency exits, and the -500 seems to normally have 8 windows between starboard front door and first gap in front of wing, whereas -300 seems to usually have 13, I believe.
That's what I have come up with as of now.
Or, WN -500s are N5**SW, WN -300s N3**WN/SW, or N6**WN/SW/AA ,AS -400s are N7**AS ,  
Also, UA -300s I have seen are N2**UA and N3**UA, and their -500s I have seen are N9**UA

[Edited 2006-02-27 03:15:33]

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