Submarine Armament And Fire Control Systems Parts

(Page 9) End item NSN parts page 9 of 17
Part Number
NSN
NIIN
1768518 Nonmetallic Special Shaped Seal
006742055
1768518 REV G Nonmetallic Special Shaped Seal
006742055
1768518REVF Nonmetallic Special Shaped Seal
006742055
177002-2 Annular Ball Bearing
001448482
177007-2 Annular Ball Bearing
001571971
177030-126 Annular Ball Bearing
001980975
177030-8 Airframe Ball Bearing
001424335
177039-57 Annular Ball Bearing
001089331
1786577 Externally Relieved Body Screw
008914896
1786883 Plug-in Electronic Compon Socket
005778707
1793-279 O-ring
002150319
18 Annular Ball Bearing
001448482
180028A Annular Ball Bearing
001448482
1820388-062 Paper Metallized Fixed Capacitor
006819389
1828158 Spring Tension Washer
009789764
1828397 Flat Washer
007752676
1856974-15 Nonmetallic Grommet
002764265
18779 Tapered Roller Bearing
000076358
18G4D/AC1CS Motor-tachometer Generator
003999051
19 Annular Ball Bearing
001566714
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Submarine Armament And Fire Control Systems

Picture of Submarine Armament And Fire Control Systems

A fire-control system is a number of components working together, usually a gun data computer, a director, and radar, which is designed to assist a weapon system in hitting its target. It performs the same task as a human gunner firing a weapon, but attempts to do so faster and more accurately.

An early use of fire-control systems was in bomber aircraft, with the use of computing bombsights that accepted altitude and airspeed information to predict and display the impact point of a bomb released at that time. The best known United States device was the Norden bombsight.

Simple systems, known as lead computing sights also made their appearance inside aircraft late in the war as gyro gunsights. These devices used a gyroscope to measure turn rates, and moved the gunsight's aim-point to take this into account, with the aim point presented through a reflector sight. The only manual "input" to the sight was the target distance, which was typically handled by dialing in the size of the target's wing span at some known range. Small radar units were added in the post-war period to automate even this input, but it was some time before they were fast enough to make the pilots completely happy with them.

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