David A Lockard

US Patent:

20120153086, Jun 21, 2012

Filed:

Dec 15, 2011

Appl. No.:

13/326779

Inventors:

Mehdi R. Khorrami - Norfolk VA, US
David P. Lockard - Hampton VA, US
James B. Moore - Yorktown VA, US
Ji Su - Yorktown VA, US
Travis L. Turner - Yorktown VA, US
John C. Lin - Seaford VA, US
Karen M. Taminger - Yorktown VA, US
Seun K. Kahng - Poquoson VA, US
Scott A. Verden - Hampton VA, US

Assignee:

United States of America as represented by the Administrator of the National Aeronautics and Spac - Washington DC

International Classification:

B64C 9/16

US Classification:

244216

Abstract:

A system is provided for reducing aeroacoustic noise generated by an aircraft having wings equipped with trailing-edge flaps. The system includes a plurality of elastically deformable structures. Each structure is coupled to and along one of the side edges of one of the trailing-edge flaps, and is coupled to a portion of one of the wings that is adjacent to the one of the side edges. The structures elastically deform when the trailing-edge flaps are deployed away from the wings.

US Patent:

20160137284, May 19, 2016

Filed:

Jan 25, 2016

Appl. No.:

15/005338

Inventors:

- Washington DC, US
Reggie T. Kidd - Hampton VA, US
David P. Lockard - Hampton VA, US
Mehdi R. Khorrami - Norfolk VA, US
Craig L. Streett - Virginia Beach VA, US
Douglas Leo Weber - Hayes VA, US

International Classification:

B64C 3/48
B64C 9/24

Abstract:

A slat cove filler is utilized to reduce airframe noise resulting from deployment of a leading edge slat of an aircraft wing. The slat cove filler is preferably made of a super elastic shape memory alloy, and the slat cove filler shifts between stowed and deployed shapes as the slat is deployed. The slat cove filler may be configured such that a separate powered actuator is not required to change the shape of the slat cove filler from its deployed shape to its stowed shape and vice-versa. The outer contour of the slat cove filler preferably follows a profile designed to maintain accelerating flow in the gap between the slat cove filler and wing leading edge to provide for noise reduction.