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Posted on 4/20/16 at 11:14 pm to member12
Raked wingtips are similar in function to winglets. Some later versions will have traditional winglets.
Posted on 4/20/16 at 11:29 pm to member12
quote:
Why didn't they put winglets on the 787?
The composite wings are designed to flex like bird. No need for winglets as the wing tips do have about a 20 degree curvature in them. The wings on those planes can really flex and provide huge lift. If you ever get a chance to see a takeoff from the front or back on a runway you will see exactly what I'm talking about.
I have walked out on the wing tip from the fuselage and as you progress towards the wingtip its like walking on a trampoline.
Pretty cool stuff.
Posted on 4/20/16 at 11:43 pm to CajunAlum Tiger Fan
I think the raked wingtipped birds are better looking than the planes with the winglet retrofits, i.e. 767-400, 747-8i, 787, 777-200LR-300ER.
Posted on 4/20/16 at 11:45 pm to SmackoverHawg
quote:
How much one of those babies cost new?
Around $200 million. And that's for basically the shell.
The interior and engines are sold separately, then Boeing installs them for a cost as well. I forget the exact reasoning for selling things separately, but I want to say it has something to do with the liability of each thing.
Posted on 4/20/16 at 11:50 pm to Reservoir dawg
Agreed, but when I was working in an MRO 10 years ago, winglet reftrofits were extremely profitable and they still are, with the newer split scimitar versions gaining in popularity.
Posted on 4/20/16 at 11:54 pm to CajunAlum Tiger Fan
The split scimitars are cool and very effective.
Posted on 4/20/16 at 11:59 pm to member12
quote:
Why didn't they put winglets on the 787?
Interesting story about how winglets ended up on Boeing aircrafts...
An engineer at Boeing tried to convince the higher-ups that winglets would improve fuel efficiency and that Boeing should make them, but got nowhere with it. He ended up leaving Boeing, started his own company making winglets, selling them back to Boeing, then Boeing bought him out
Posted on 4/21/16 at 12:04 am to TDawg1313
quote:
How much one of those babies cost new?
-8 around 180 mil
-9 around 212 mil
-10 are going to be around 250 or so
Thats standard run of the mill pricing.
The higher end customers planes cost a little more as they have more luxurious setups installed.
And they sale the plane as a whole unit not separately.
The only time they sale basically a shell is for a business jet that a company purchases and sends to another company for customization.
Also Both GE and Rolls-Royce have separate warranty for their engines, but Boeing warranties their planes for the life of the aircraft (around 40 years)
Posted on 4/21/16 at 12:05 am to TDawg1313
I had never heard that story. Funny!
Posted on 4/21/16 at 12:11 am to Reservoir dawg
quote:
I had never heard that story. Funny!
It sounds like one of those urban legends, but it came from a longtime engineer when he was showing me around the factory.
Posted on 4/21/16 at 6:54 am to Mr.Sinister
quote:
but Boeing warranties their planes for the life of the aircraft (around 40 years)
Not true.
And *sell
Posted on 4/21/16 at 7:12 am to Napoleon
I wonder how well that near vertical takeoff would go with the added weight of 300 passengers plus luggage.
Posted on 4/21/16 at 8:14 am to kywildcatfanone
quote:yeah.
Nothing like posting a 2 year old video
Let me go ahead and save this thread.
Globemaster reverse thrust landing
What was that? Like 1000'?
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