Propulsion
Videos
Propulsion is the generation of force by any combination of pushing and/or pulling to modify the translational motion of an object, which is typically a rigid body but may also concern a fluid. A prop
Armadillo Aerospace's quad rocket vehicle showing shock diamonds in the exhaust plume from its propulsion system
A turboprop-engined Tupolev Tu-95
Wheels are commonly used in ground propulsion
Transrapid 09 at the Emsland test facility in Germany
Aircraft
Videos
An aircraft is a vehicle that can fly by gaining support from the air. It counters the force of gravity by using either static lift or the dynamic lift of an airfoil, or, in a few cases, direct downwa
The Cessna 172 Skyhawk is the most produced aircraft in history.
A Eurocopter AS350 Écureuil helicopter
Aviation in the 19th century
Hot air balloons