Nos. 5 and 3 ram home by sections as before.
"ELEVATE!"
432. Nos. 3 and 5 raise muzzle by section of rammer.
No. 1 tends elevating screw.
"PRIME!"
433. No. 1 serves vent and primes with powder.
"RUN OUT!"
434. Nos. 7, 11, and 15 man crank.
No. 9 eases compressor.
Nos. 3, 5, and 13 open port.