Originally posted by Albany Rifles
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Fire Mission!!!!
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Three Primary modes of Fire Control for Main battery.
1) Primary: Main battery directors (Spots 1 (Mainmast) Spot 2 (Aftmast) Spot 3 (Conning Tower or original FC spotting station) in association with Gun plot and the Mk. 41 Stable vertical contained in Main and Aft plot.
*Automatic- Gun Plot controls turret, sending info on trane and elevation through recievers in machinery pan and electric pan.
*Indicating- Gun position laid by turret crew in the "follow the pointer" mode with the Mk.41 Stable vertical as a guide.
2) Secondary: Turret acts as Fire Control director for all turrets with indicating by Mk. 41 Stable vertical in Main gun plot.
3) Local: Turret crew lays guns, utilizes sight control via telescoping range finder and Ford Mk 34 G.F.C.S. & Ford computer Mk.3
Computations for turret computer imput:
1) Range clock
2) Deflection correction. (*Ex:For H.C. rounds deflect correction Left 6 Mils)
3) Main deflection correction.
4) Sight angle.
5) Ship speed indicator.
6) Target angle.
7) Ships actual speed (from Pitot).
8) H.C. Velocity at check. (Pre-calculated)
9) A.P. Velocity at check. (Pre- calculated)
10) Range correction.
11) Wind speed. (Knots)
12) Target speed. (Knots or stationary)
13) Projectile class. (HC,AP or "dummy")
14) Present range. (at time of calculation)
*These are assisted with information coming from Spots 1,2,3, Gyrocompass repeater, Stable vertical (Verticle seeking Gyroscope) etc.
*There is more as pending what mode of Fire Control you are in will determine how often you are re-configuring these calculations for targeting or Gun plots main FC computers (1 Able 1 & 1 Able 2 and Stable verticals) are configuring. But this is just to give you an idea.Last edited by Dreadnought; 04 Aug 09,, 21:01.Fortitude.....The strength to persist...The courage to endure.
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