Handlaunching

Handlaunching is a method of starting an aircraft, typically a glider or sailplane, by using human power to propel it into the air. This is usually done by two or more individuals holding the wings or fuselage and running forward, creating enough speed for the aircraft to gain lift and become airborne. The launch crew releases the aircraft once it has achieved sufficient airspeed and altitude.

Handlaunching is most commonly associated with model aircraft, where it is a standard procedure for many types of gliders and powered models. In full-scale aviation, handlaunching is less common due to the size and weight of modern aircraft. However, it was historically used for some early aircraft, particularly those designed for short takeoffs or as part of specific training exercises. It can also be employed in certain niche applications, such as launching lightweight, ultralight gliders or for distress situations where other launch methods are unavailable. The effectiveness of handlaunching depends on the aircraft's weight, wing loading, and the physical capability of the launch crew.