6 cylinders, pressure 200 pounds, radio operator ball turret gunner, left waist gunner and tail gunner on system.

5 x 6 x 200/400 x 1/4 = 3⅔ hours

RIGHT REAR SYSTEM: 3 cylinders - full charge to 450 pounds 15 man hours.

Example:

3 cylinders, pressure 300 pounds, two men on system.

5 x 3 x 300/400 x 1/2 = 5 plus hours

Left rear system out - RO, ARO, AE and two AG's on right rear system.

5 x 3 x 300/400 x 1/5 = 2 hours.

F-1 CYLINDER -- ball turret -- full charge to 400 pounds 2 plus hours

2 (man hours) x 120/400 = 0.5 plus hours (30 plus min)