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Differences In Early 747 Types?  
User currently offlineHinckley From United States of America, joined Jan 2006, 100 posts, RR: 0
Posted (6 years 11 months 2 weeks 5 days 2 hours ago) and read 1671 times:

I've never understood what the difference was between the 747-100 and the 747-200, and what the difference was between the 747-200SUD and the 747-300. Can anyone shed some light on this for me?

5 replies: All unread, jump to last
 
User currently offlineDa man From United States of America, joined Sep 2001, 887 posts, RR: 13
Reply 1, posted (6 years 11 months 2 weeks 5 days 2 hours ago) and read 1664 times:

The -200 had extra fuel tankage from the -100 and the -200SUD had the extended upper deck of the -300 without the extra tankage of the -300.

In short:
-100 to -200: More range
-200 to -200SUD: More capacity at sacrifice of range
(-200SUD was a conversion from -200, to my knowledge it was not a factory option. KLM converted some of their -200s.)
-200SUD to -300: More range at same capacity

Hope this helps.

edited to include more information

[Edited 2006-07-06 17:01:08]


War Eagle!
User currently offlineHinckley From United States of America, joined Jan 2006, 100 posts, RR: 0
Reply 2, posted (6 years 11 months 2 weeks 4 days 23 hours ago) and read 1582 times:

So if I understand, each variant had greater range than the previous one? Was that accomplished through better design or additional fuel tanks?

User currently offlineKELPkid From United States of America, joined Nov 2005, 5962 posts, RR: 4
Reply 3, posted (6 years 11 months 2 weeks 4 days 23 hours ago) and read 1561 times:

Wasn't the Pratt and Whitney JT9D the only engine choice on the -100 series frames? I thought the CF6s and RB211's didn't become an option until the -200 series.


Celebrating the birth of KELPkidJR on August 5, 2009 :-)
User currently offlineDa man From United States of America, joined Sep 2001, 887 posts, RR: 13
Reply 4, posted (6 years 11 months 2 weeks 4 days 23 hours ago) and read 1549 times:

Increases to MTOW primarily, equating to better engines and also increased tankage.

Quoting Hinckley (Reply 2):
each variant had greater range than the previous one

Except for the -200SUD, because the addition of the SUD added structural weight without the MTOW increase and better engines of the -300.


War Eagle!
User currently offlineDa man From United States of America, joined Sep 2001, 887 posts, RR: 13
Reply 5, posted (6 years 11 months 2 weeks 4 days 23 hours ago) and read 1549 times:

Quoting KELPkid (Reply 3):
Wasn't the Pratt and Whitney JT9D the only engine choice on the -100 series frames? I thought the CF6s and RB211's didn't become an option until the -200 series.

That is also true, but after the CF6 and RB211 were certified for the 747, any -100s built afterwards could have these engines, as shown by Iran Air's 747-100B.


War Eagle!
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