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707, 727, 737, 757 Fuselage! Interesting!  
User currently offlineDelta777-XXX From United States of America, joined Jun 2000, 1017 posts, RR: 8
Posted (13 years 7 months 3 weeks 6 days 22 hours ago) and read 6823 times:

     Alright... for some this is going to be hard to believe! The 707, 727, 737, and 757 all have the same fuselage circumference. Meaning the passenger cabin is the same width. But, if you really start thinking about you'll see they all have 3-3 seating, so I guess it makes a little sence. But then you thin about it this way... The BBJ has the same fuselage circumference as the 757. I mean... it's just wierd! Any comments?      

9 replies: All unread, jump to last
 
User currently offlineIlyushin96M From United States of America, joined Sep 1999, 2609 posts, RR: 12
Reply 1, posted (13 years 7 months 3 weeks 6 days 21 hours ago) and read 6717 times:

Back when the 707 first entered production, Boeing came up with varied lengths for the fuselage to suit various customers. Later, the 727 and 737 series had the same fuselage cross section and cockpits as the 707. The similarities were noted, and a joke was made that Boeing had a machine that produced one long, continuous fuselage, and that varied lengths were cut off and made into different aircraft types as needed.  

I don't QUITE think this trend has continued with the 757 and 737NG; though they are similar in fuselage circumference, there are some differences. Can anyone confirm this?


User currently offlineILUV767 From United States of America, joined May 2000, 3141 posts, RR: 8
Reply 2, posted (13 years 7 months 3 weeks 6 days 21 hours ago) and read 6698 times:

This is besides the point but, did you know that the 727 fuselage and the 757 fuselage are the same length? I have a little booklet called the "PlaneFacts" printed by United, and the 727, and the 757 both are 153 feet long. WOW!   The 757 always seemed longer.

User currently offlineDelta777-XXX From United States of America, joined Jun 2000, 1017 posts, RR: 8
Reply 3, posted (13 years 7 months 3 weeks 6 days 21 hours ago) and read 6669 times:

yes... it did continue with the 757 and 737NG. The Next Generation 737's are just longer! There are slight differences... but you can't tell. You gotta get really technical (sp?) before you actually see it!

User currently offlineGreeneyes53787 From United States of America, joined Aug 2000, 844 posts, RR: 0
Reply 4, posted (13 years 7 months 3 weeks 6 days 15 hours ago) and read 6619 times:

727-100s are shorter. But the 367-80 (I believe that is the first 707) actually has a narrower fuselage than later ones. Original 707s were designed for 5-across seating.

And although your study of 757s vs 727s is good, and probably accurate, the flight decks and nose are completely different. Further, the aft end of a 727-200 has a bulkhead somewhere. Aft of that is an engine and some ducting. This is probably included in the comparrison.

All 727s I've ridden in are short inside compared to all 757s I've flown in. If one were to count seats a difference of interior length could be found easily.

GE

ps-Delta777, thanks for this info.


User currently offlinePrebennorholm From Denmark, joined Mar 2000, 6287 posts, RR: 54
Reply 5, posted (13 years 7 months 3 weeks 6 days 15 hours ago) and read 6609 times:

Greeneyes, yes, the 367-80 (or 707 prototype) had a narrower fuselage. It shares this narrower fuselage with many hundred C-135 (mostly KC-135) delivered to the US Air Force some 40 years ago.
Best regards, Preben Norholm



Always keep your number of landings equal to your number of take-offs, Preben Norholm
User currently offlineJt8djet From United States of America, joined Jul 2000, 214 posts, RR: 0
Reply 6, posted (13 years 7 months 3 weeks 6 days 12 hours ago) and read 6584 times:

The 707 was supposed to have the same fuselage dimensions as the C-135 (original Boeing model 717), but the airline customers wanted six-abreast seating. So, Boeing widened the fuselage on the 707.

User currently offlineJETPILOT From United States of America, joined May 1999, 3130 posts, RR: 29
Reply 7, posted (13 years 7 months 3 weeks 6 days 12 hours ago) and read 6581 times:

The 707, and the 727 do not have the same fuselage circumference. The 707 has a larger lower cargo area.

User currently offlineOxygen From Hong Kong, joined Sep 1999, 674 posts, RR: 1
Reply 8, posted (13 years 7 months 3 weeks 6 days 5 hours ago) and read 6541 times:

The cabin cross sections of Boeing narrowbodies are actually not identical.
Boeing only kept the upper lobe of the fuselage (from floor up) of the 707,727,737 and 757 the same. Only the 737 and 757 fuselage is really the same .
If you look closely, the 707 floor level is around the middle of the fuselage while the 737 floor level is lower.
from the front the 707 is more oval than the 737.
but I don't know whether the 727 fuselage has a larger height than the 737 or not.
there are 3 types of 707 fuselage. First the 132" 367-80, then the 144"KC135, and the production standard 148".


User currently offlineJETPILOT From United States of America, joined May 1999, 3130 posts, RR: 29
Reply 9, posted (13 years 7 months 3 weeks 6 days 4 hours ago) and read 6535 times:

Great info.... Oxygen

The only round fuselage boeing ever built is the 777.


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