Note: the information you are about to see is not from either Wikipedia or the Boeing site.According to Airliners.net, there is a 737-300 High-Gross-Weight variant (actually an option) that has an MTOW of up to 62,823kg (138,500lb). The range for the 737-300HGW is listed at 3,400NM with 140 passengers. Since the range value is for a seating of 140/149 passengers, we'll need to do more research, possibly contacting Boeing via e-mail.
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Airliners.net also lists a high-gross-weight option for the 737-400, which has an MTOW of up to 68,040kg (150,000lb) and a range of 3850km (2080nm) with 140 passengers. Once again, the range value is for a seating of 140/188 passengers, so more research and possibly contacting Boeing is needed.
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And once again, the 737-500 has a high-gross weight option. The 737-500HGW has an MTOW of up to 60,555kg (133,500lb) and a range of 4444km (2400nm) with all 132 passengers. Since this value is correct for a full load of passengers, no extra research is needed.
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Sources:
http://www.airliners.net/aircraft-data/stats.main?id=92 - 737-300 on airliners.net
http://www.airliners.net/aircraft-data/stats.main?id=93 - 737-400on airliners.net
http://www.airliners.net/aircraft-data/stats.main?id=94 - 737-500 on airliners.net
Note:
High Gross Weight (HGW) variants of the 737 next-gen 737-600, -700, -800 and -900 are all present in the aircraft list.
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In addition to what I've found at airliners.net, a UK-based 737-related website posts the following passenger figures for the 737 original:
-The 737-100 is certified to seat up to
124 (100 in AM).
-The 737-200 is certified to seat up to
136 (115 or 130 in AM).
Source:
http://www.b737.org.uk/techspecsdetailed.htmI don't think the figures on this site are very accurate, but it's worth the research...
