Owls, however, possess no fewer than three distinct physical attributes that are thought to contribute to their silent flight capability: a comb of stiff feathers along the leading edge of the wing; a soft downy material on top of the wing; and a flexible fringe at the trailing edge of the wing.
The researchers attempted to unravel this mystery by developing a theoretical basis for the owl's ability to mitigate sound from the trailing edge of its wing, which is typically an airfoil's dominant noise source.
NYSE: SPR) today shipped its first leading and trailing edge
wing structures for the A320neo program from its Prestwick, Scotland, site.
At some point, the blades become too thin to do that, so they peel off some skin at the end of the blade and let the air run over the trailing edge
," said Benson.
Adaptive trailing edges
pertain to a collection of small controllable devices that are integrated into the aft portion of the wing.
During the test on the 787 Dreamliner static test airframe, the wing and trailing edges
of the airframe were subjected to its limit load, the highest loads expects to be seen in service.
on specially modified 747 Large Cargo Freighters for completion, including the installation of systems, fixed leading and trailing edges
, and control surfaces.
The Controls business segment designs, engineers and manufactures actuation components and systems used for leading and trailing edges
wing flaps on commercial and military aircraft; systems for opening and closing weapons bay doors on fighter aircraft, suspension systems and turret stabilising and aiming systems for armored vehicles, integrated mission management and flight control computers, ammunition handling and fire control systems, and perimeter intrusion detection systems.
The final test took place on 21 April, when the wing and trailing edges
were subjected to their limit load.
Charles are the nose assembly, the engine pylons, wing slats, flap trailing edges
, the cargo door, cargo ramp, main landing gear pods and bulkhead structures.
The complete wing assembly includes flaps, ailerons, leading edges and trailing edges
, as well as installed sub-systems.
The company estimates that by using KBE to design the A380 and A400M trailing edges
, at least 50 % cost savings will be achieved, along with significant time savings.