Solenoid Actuated, Rail Mounted, Aircraft Payload Release Mechanisms

Abstract

The spring loaded detent mechanisms currently used to retain missile-type payloads require a high forward load in order to overcome a spring before release can be achieved. However for smaller aircraft, such as UAVs, there is a pressing need to develop alternate mechanisms which require reduced release forces to avoid excessively loading the vehicle. This paper describes two mechanisms which were designed and tested to achieve this goal. Both of the prototypes rely on a solenoid which changes the boundary conditions and alters the required release force. The advantages and disadvantages of each design are discussed.