Nos. 3 and 4 elevate the piece.

Nos. 5 and 6 traverse the piece.

Nos. 7 and 8 hoist the projectile at the command "Hoist!" No. 8 lowers the shot-tray.

No. 9 hooks the tackle to the shot-tray and commands "Hoist!" Steadies the projectile. Places section of cartridge on rear of carriage-platform.

No. 10 mounts steps and commands "Halt!" when projectile is level with breech. Launches it on loading-tray, and swings shot-tray clear of carriage-platform and resumes post.

No. 11 passes rammer to No. 2.

As soon as projectile is rammed passes both sections of cartridge to No. 2 and returns rammer.

No. 12 brings up and returns trucks.

No. 13 calls out and posts data received.

No. 14 repeats to ammunition-sergeant kind of projectile to be used; also notifies when to start and stop the hoist.