Anti-Aircraft Fire Control System [Kerrison Predictor]


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Details


Description
Large green crate with rope handles on two ends at those ends are also metal loops possibly for transporting , inside crate is a metal box shaped object with metal tubes at base, metal crank wheel on the side and four metal frame arms with loops and pins, circular glass covered holes and dials, one large dial with arrow to measure in yards reads 'ORD. Q. F. 40 mm MKI // PROS.H.E. MK I.T. // M.V. 2750 F/S (1/2 WORN GUN) // LAG CORRECTION 0.07 SECS // T.E.SETTING 0.058 INCHES', metal plate on side reads 'PREDICTOR A.A. No 3 MK I // A.R. & Co // 1942 // REG. No 7759 // OS-5-GA'
Top of object is open exposing inner components which includes four motors plate on one motor reads 'O.S.800 A // MOTOR 1/40 B.H.P. // MK.1.A. // 50 VOLTS 50 // 3 PHASE // 2500/2750 R.P.M. // B.U.Z. [?]1508 // 1942' and various cogs leading to dials, loose lens like object.
Media/Materials
Processed Material/Metal
Organic/Vegetal/Wood
Signature/Marks and Type
ORD. Q. F. 40 mm MKI // PROS.H.E. MK I.T. // M.V. 2750 F/S (1/2 WORN GUN) // LAG CORRECTION 0.07 SECS // T.E.SETTING 0.058 INCHES Maker's Plate
PREDICTOR A.A. No 3 MK I // A.R. & Co // 1942 // REG. No 7759 // OS-5-GA Maker's Mark
O.S.800 A // MOTOR 1/40 B.H.P. // MK.1.A. // 50 VOLTS 50 // 3 PHASE // 2500/2750 R.P.M. // B.U.Z. [?]1508 // 1942 Maker's Plate
Accession No
2015.27
Credit Line
Anti-Aircraft Fire Control System [Kerrison Predictor], 2015.27. The Museum of Transport and Technology (MOTAT).
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Came from Valintines surplus store in Hamilton approx 1970. part of the 3.7 anti aircraft unit along with Matador Gun Tactor 3,7 gun and BTH moblie radar unit.

- Greg Pittams

Posted on 15-01-2020 00:02:00