patches
Posts: 237
Joined: Sun Aug 20, 2000 5:56 am

777 Wingtips

Sun Jan 13, 2002 11:13 am

I have a question on the 777. Did boeing ever consider using wingtips when they built the 777? I think it would have made that plane look even better! also they would get it more range. The 747-400 is the only boeing commerical plane to us wing tips. Why is that? Do they really work?
 
Boeing Nut
Posts: 5078
Joined: Fri Feb 23, 2001 2:42 am

RE: 777 Wingtips

Sun Jan 13, 2002 11:19 am

Actually, in it's infancy, there were winglets planned. But that was when the 777 was still being considered a stretched 767. Boeing isn't the biggest fans of winglets. At least they used to be. If you look at the 777 wing from a top view, you will notice that the tip is slightly angled outward. Boeing used this technology because in there eyes, winglets weren't necessary. They used winglets on the 744 because extending the wings more was impractical. They latest technology is the "raked wingtip". These are used on the 767-400 and on the coming 777-300ER and 777-200LR.
I'm not a real aeronautical engineer, I just play one on Airliners.net.
 
patches
Posts: 237
Joined: Sun Aug 20, 2000 5:56 am

RE: 777 Wingtips

Sun Jan 13, 2002 11:25 am

thanks Boeing nut. I have a boeing book on the building of the 777 and they talk about out that 767. How much extra range do they get with the raked wings? Thanks again, Patches
 
Boeing Nut
Posts: 5078
Joined: Fri Feb 23, 2001 2:42 am

RE: 777 Wingtips

Sun Jan 13, 2002 11:37 am

I honestly don't know on the 767, but on the 777-300ER, maximum range is almost the same as the 747-400. (7,200 nm) Range on the "normal" 777-300 is around 5,000 nm, I think.
I'm not a real aeronautical engineer, I just play one on Airliners.net.
 
vafi88
Posts: 2981
Joined: Sun Apr 08, 2001 10:32 am

RE: 777 Wingtips

Sun Jan 13, 2002 12:38 pm

Some 737s have wingtips. look at ATA, those things are huge! I had the same question on the 777 wingtips.
I'd like to elect a president that has a Higher IQ than a retarted ant.
 
greenjet
Posts: 869
Joined: Sat Aug 25, 2001 9:59 pm

RE: 777 Wingtips

Sun Jan 13, 2002 6:54 pm

And there was me thinking all aircraft had wingtips.... Smile/happy/getting dizzy
 
NZ767
Posts: 1553
Joined: Sun Nov 18, 2001 9:17 am

RE: 777 Wingtips

Sun Jan 13, 2002 7:04 pm

Yep, getting our "wingtips" confused with our "winglets" here!  Smile
 
747-600X
Posts: 2492
Joined: Wed Jan 05, 2000 3:11 am

RE: 777 Wingtips

Sun Jan 13, 2002 7:14 pm

Well, I'll confess - I just don't see how a winglet can make one plane fly farther and not another. Why it makes the 737-800 and 747-400 go farther but won't benefit the 777 I cannot comprehend. Any help?

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