AFa340-300E From France, joined May 1999, 2084 posts, RR: 25 Posted (14 years 9 months 4 days 13 hours ago) and read 1312 times:
I had read an article over two years ago about the test Cathay Pacific made on one of its A340-300Es with some dolphin skin on its wings, which were due to reduce drag. Thiswould result in 1 ton fuel economy on a "typical long-haul flight" (I know this is close to no meaning without the exact sector on a period pf the years in certain conditoins).
Anyone would have some information about this please?
Were the test successful?
What precise aircraft get these skins?
When was it made please?
Falcon-air From , joined Dec 1969, posts, RR:
Reply 1, posted (14 years 9 months 4 days 4 hours ago) and read 1206 times:
you are right about the special skin, It was a success by reducing the total drag that the aircraft produced. Rather then the skin being smooth, it was covered in platelets like a Dolphin giving less drag. But the cost to fit an aircraft with ths special type skin was so much that they believe an airline would not bear the cost over fuel saving.
The Discovery channel ran a documentry on it some time a go. IF I can find some more infomation i'll let you know.
Minuteman From United States of America, joined Aug 2000, 271 posts, RR: 0
Reply 6, posted (14 years 8 months 4 weeks 11 hours ago) and read 1115 times:
I had an opportunity to work with some scraps of material similar to this
It was made by 3M for Airbus and went for about $10,000 per sq/yd (?)...EXTREMELY expensive, but it was a rivulet-covered film that was applied to the upper surface of the wing in an attempt keep the boundary layer attached. It was basically like a micro-scale corduroy (sp?) texture.