Title:6-POUNDER TWIN GUN: PART 1 - GENERAL DESCRIPTION AND LAYING [Main Title]
Film Number:DRA 273
Other titles:
Summary: A military training film describing the gears and mechanisms of the 6-pounder twin gun incorporating autosight theory and the No 13 director.
Description: (Reel 1) Demonstration of how the gun is operated, breaking down the role of the elevation layer, the No 1 and the line layer; how to correct the gun to hit moving targets on the water; external and internal documentary of munitions factories; moving parts of the gun captioned with overlaid titles.
(Reel 2) Diagrammatic representation of angle of sight, quadrant elevation, ratio of movement ie autosight theory; effect of changing tides and use of tide lever to improve targeting.
(Reel 3) Battery observation point (BOP) set up 15-20 yards behind guns with a No 13 director that transmits elevation laying, correctional laying and line laying direct to the gun operators; Vickers Armstrong director Registered No 25.
