Dating to 1968, this U.S. Navy training film tackles the approach, and the mathematics, excercised to solve a typical gun fire control problem. It is set aboard the USS England (DLG/CG-22), which was a Leahy-class guided missile cruiser in service from 1963 to 1994. The film sets up the basic elements of a typical gun fire control problem through the example of the USS England engaging and shooting down a target aircraft. It goes through the different elements of the problem through points, lines, plains, and coordinate systems. The basic antiaircraft (AA) gun fire-control problem is
to orient the gun barrel at the time of firing such that the target and the projectile occupy the same space at some time during the time of flight of the projectile, based on observation of the flight path of the target and knowledge of the gun ballistics.As the film shows, the fire control problem can be divided into two major categories: (1) The effect of relative target motion during the time of weapon flight. (2) The physical phenomena collectively called ballistics, which produce a curved weapon trajectory.
0:19 Title “U.S. Navy Training Film”, 0:27 Title “The Fire Control Technician: The Gun Fire Control Problem”, 0:38 USS England on the seas, 1:02 Ship forward (76 mm) gun is loaded, and fired at an incoming aircraft, 1:25 Animation of the functions of the fire control problem including positioning, tracking, and computing, 2:01 Animation of the basics of the fire control problem including points, lines, plains, and coordinate systems through a ship shooting at an aircraft, 3:18 Animation of the different plains such as the horizontal, vertical, deck, normal, and slant plain in relation to the line of sights, 4:19 Animation of the different characteristics of coordinate systems looking at a ship trying to shoot down an aircraft, 5:33 Different symbols for fire control problem followed by demonstration of what they represent on the example of the ship shooting down an aircraft, 11:28 Animation of how the system would calculate the line of fire for the aircraft to be shot down, 14:44 Animation of how the gun moves and the different modifications that need to be made to calculations, 19:52 Summary with animations of the different concepts covered in the training video, 20:27 End Sequence “Sea Power for Security: The End”
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This film is part of the Periscope Film LLC archive, one of the largest historic military, transportation, and aviation stock footage collections in the USA. Entirely film backed, this material is available for licensing in 24p HD, 2k and 4k. For more information visit http://www.PeriscopeFilm.com
