Patents Assigned to Dugan Air Technologies, Inc.
  • Method and apparatus for reducing airplane noise
    Patent number: 6161797
    Abstract: A modification of a 727 airplane, including a change in wing profile, to affect flight characteristics and the engines to lessen noise, such that the takeoff and landing procedure is modified so that engine power may be reduced, permitting the modified aircraft to meet the latest noise requirements without substantially reducing pay load.
    Type: Grant
    Filed: November 25, 1996
    Date of Patent: December 19, 2000
    Assignee: Dugan Air Technologies, Inc.
    Inventors: Philip S. Kirk, John J. Dugan