Accession Number : ADD004619

Title :   Target for Torpedo Launch System.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Wilson,Charles A ; Moran,Patrick J

Report Date : 06 Sep 1977

Pagination or Media Count : 5

Abstract : A system for determining the proper instant of time to launch an object, such as a target or torpedo, from an aircraft to cause the object to impact a water surface at a predetermined nose-down angle, thereby preventing structural damage due to high impact forces. The system utilizes signals produced by instrumentation representative of the aircraft pitch and angular rate of pitch. The desired launch altitude and predetermined impact angle are physically set into the system by means of adjustable voltage sources. These parameters are processed in the system such that the system forms a complete electronic analogy to the physical laws which govern the motion of the free falling object. In operation, the system continuously computes the predicted impact angle based on the instantaneous inputs of the aircraft's altitude, pitch angle and pitch rate. It then compares the predicted impact angle with the predetermined impact angle. Whenever the predicted impact angle exceeds the predetermined impact angle, a launch signal is produced to release the object (Author)

Descriptors :   *Patents, *Torpedo launchers, *Aircraft torpedoes, *Fire control systems, Angle of attack, Torpedo trajectories, Air to surface, Launching, Water entry, Impact prediction, Targets

Subject Categories : Fire Control and Bombing Systems

Distribution Statement : APPROVED FOR PUBLIC RELEASE