Gyro, SINS

SINS Gyro, Possibly made by British Aerospace
Cylinder (Tungsten Carbide?). Axial recess 15.9mm dia. 2 series of small holes in circumference (for balancing?).
Wooden plywood box 265 x 155 x 85 mm having three internal compartments: one for gyro wheel; one containing packet of washers and clamp screws; one containing ceramic (?) shaft threaded and shouldered and two circular discs 38.2mm dia. x 4.1mm long with etched spiral.

Object Details

ID: ZBA0094
Type: Gyro, SINS
Display location: Not on display
Creator: Unknown
Date made: circa 1960
Credit: National Maritime Museum, Greenwich, London
Parts: Gyro, SINS