Low-altitude flight path constructing method for e.g. military transport aircraft, involves determining path`s vertical trajectory, segment by segment, and determining vertical trajectory segment using retrieved terrain profile section

摘要

The method involves determining a vertical trajectory of a low-altitude flight path during aircraft flight, successively as flight proceeds, segment by segment. A profile section relating the terrain to be flown over by the aircraft is retrieved from a database having a terrain profile. A vertical trajectory segment is determined using the retrieved section based on climb-out and let-down performances of the aircraft. An independent claim is also included for an aircraft comprising a device for constructing a low-altitude flight path.