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777-300ER, 777-200LR And 777-200F Wing Area  
User currently offlineDaysleeper From UK - England, joined Dec 2009, 873 posts, RR: 1
Posted (2 years 9 months 3 weeks 5 days 19 hours ago) and read 4385 times:

I don’t suppose anyone has the number to hand? preferably in square meters.

And my apologies for starting a thread for such a simple question, but every site I have visited (including this one) records it as 427.8 m/2 that I know to be for the base models with a 60.9m span only. No site I have found in the last couple of hours has information for the 64.8m wings fitted to the 200LR, 300ER and 200F frames.


Thanks,

DS

3 replies: All unread, jump to last
 
User currently offlinejetlife2 From United States of America, joined Jul 2006, 221 posts, RR: 25
Reply 1, posted (2 years 9 months 3 weeks 5 days 18 hours ago) and read 4359 times:

Interesting. The EASA Type Certificate Data Sheet reflects the different wingspan but states the area is the same whcih seems unlikely. The FAA TCDS does not quote area. The Boeing public technical description gives dimensions, and even scale drawings, but not area.

PS it is "777F" , officially there is not a "777-200F" even though it s based on the 200LR.


User currently offlineDaysleeper From UK - England, joined Dec 2009, 873 posts, RR: 1
Reply 2, posted (2 years 9 months 3 weeks 5 days 15 hours ago) and read 4300 times:

Quoting jetlife2 (Reply 1):
Interesting. The EASA Type Certificate Data Sheet reflects the different wingspan but states the area is the same whcih seems unlikely. The FAA TCDS does not quote area. The Boeing public technical description gives dimensions, and even scale drawings, but not area.

PS it is "777F" , officially there is not a "777-200F" even though it s based on the 200LR.

Hmm, the plot thickens - All I can think of is that they must have reduced the width slightly when they increased the span, as I'd have thought the EASA certificate would be correct.

And thanks for the info on the F  


User currently offlineferpe From France, joined Nov 2010, 2805 posts, RR: 59
Reply 3, posted (2 years 9 months 3 weeks 4 days 14 hours ago) and read 4056 times:

Quoting Daysleeper (Reply 2):
All I can think of is that they must have reduced the width slightly when they increased the span, as I'd have thought the EASA certificate would be correct.

Not really, the swept wingtip is counted as a winglet type of device and these are not counted in the reference wing area, which is 427.8m2 as you wrote. I did actually mesure how much these swept wingtips would add, 7m2. No point in trying to be more accurate as this wingarea is the reference one measured in a special way (look at the Piano X manual to learn about the different definitions there are; Boeing Wimpress, Airbus and so on).

This wingarea then stays the same to be able to compare Cl and Cd values etc between variants.



Non French in France
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