natural philosophy, physical science, physics - the science of matter and energy and their interactions

avionics - science and technology of electronic systems and devices for aeronautics and astronautics; "avionics has become even more important with the development of the space program"

load factor - (aeronautics) the ratio of an external load to the weight of the aircraft (measured in g)

dynamic balance - (aeronautics) the state of equilibrium in which centrifugal forces due to a rotating mass (e.g., a propeller) do not produce force in the shaft and so vibration is reduced

astrogate - navigate in space

astrogate - guide in interplanetary travel

rigid - designating an airship or dirigible having a form maintained by a stiff unyielding frame or structure

nonrigid - designating an airship having a shape maintained only by internal gas pressure and without a supporting structure