Patent ID: 8985511
Filing Date: 2015-03-24
Classification: B64C

Abstract:
1. A method of positioning a landing gear of an airplane, the method comprising: providing the landing gear comprising a shock strut, a truck beam operatively pivotally connected to the shock strut, a first and a second interconnected link operatively connected to the truck beam and a third link extending between the shock strut and the first and second interconnected links with the third link pivotally connected to the second link at a third pivot, wherein providing the landing gear comprises providing the shock strut so as to have an inner and an outer cylinder, providing the truck beam so as to be pivotally connected to the inner cylinder of the shock strut, providing the first link connected to the truck beam at a first pivot, the second link connected to the first link at a second pivot and the third link connected to the outer cylinder at a fourth pivot, and providing a truck pitch actuation system so as to be operatively connected to the third pivot so as to position the third pivot in the first position or the second position; commanding the landing gear to a raised or lowered position; in an instance in which the landing gear is commanded to a lowered position and the landing gear is operational, positioning the third pivot in a first position to support a taxi mode, a take-off mode and a landing mode; in an instance in which the landing gear is commanded to a lowered position and the landing gear is not fully operational, positioning the third pivot in a second position to support an alternate landing mode; and in an instance in which the landing gear is commanded to a raised position, positioning the third pivot in the second position to support a stow mode.