Abstract: A system and method for aligning aircraft coordinate systems includes determining a first coordinate in the first coordinate system from a first reflector using a first coordinate positioning device, and determining second and third coordinates in the second coordinate system from second and third reflectors, respectively, using a second coordinate positioning device. The second and third reflectors are disposed at predetermined distances from the first reflector. The system aligns the first and second coordinate systems based on the first, second, and third coordinates and the predetermined distances using a processor.
Type:
Application
Filed:
October 22, 2001
Publication date:
June 6, 2002
Applicant:
Northrop Grumman Corporation a Delaware corporation
Inventors:
Clifton D. Cunningham, James P. Koesters, Michael A. Leenhouts, Eric D. Moore
Abstract: The present invention provides a landing gear. The landing gear includes a trunnion having at least one principal pivot point. The principal pivot point is adapted to be pivotably coupled to an airframe to allow the trunnion to pivot about a principal trunnion pivot axis; the trunnion is operable to move between a deployed position and a stowed position by pivoting about the principal trunnion pivot axis. The trunnion further includes at least one secondary pivot point. The landing gear also includes a subframe having at least one principal pivot point. The principal pivot point of the subframe is pivotably coupled to the secondary pivot point of the trunnion to allow the subframe to pivot about a principal subframe pivot axis; the subframe is operable to move between a deployed position and a stowed position by pivoting about the principal subframe pivot axis. The landing gear further includes a wheel rotatably coupled to the subframe.
Type:
Application
Filed:
January 17, 2002
Publication date:
May 16, 2002
Applicant:
Northrop Grumman Corporation, a Delaware corporation