Freelancer

Freelance Jobs

Saturday, January 5, 2013

Airbus Military, Lockheed Try Winglets on Airlifters

by Graham Warwick

Winglets are de rigueur on business jets, and becoming ubiquitous on commercial airliners, but still a rarity on military airlifters. Now Airbus Military is flight-testing drag-reducing winglets on its C295 light transport.


Photo: Airbus Military

Boeing's C-17 was designed with winglets, but Airbus's A400M, Alenia's C-27J and Kawasaki's XC-2 do not have them. Neither has Lockheed Martin's C-130, but trial winglets were expected to be flight tested later this year. Lockheed has also looked at winglets for the C-5M.


Concept: Lockheed Martin


Lockheed expects a 4% increase in the C-130's range as a result of fitting the 5ft-tall winglets, which add 5ft to the aircraft's wing span. Airbus expects winglets to improve the C295's hot-and-high runway performance, increase range and endurance, and reduce operating costs.

Airbus began flying a wingletted C295 -- its rotodome-equipped airborne early warning and control (AEW&C) aerodynamic testbed -- on Dec. 21. from Seville, Spain. It says data from the flights will provide a basis for a decision on whether to incorporate winglets into the C295 design.

Read more at: http://www.aviationweek.com/Blogs.aspx?plckBlogId=Blog:27ec4a53-dcc8-42d0-bd3a-01329aef79a7&plckPostId=Blog:27ec4a53-dcc8-42d0-bd3a-01329aef79a7Post:efc6ee5f-3028-44a8-82a6-86a13fc40f5c

No comments: