text: what is a gunnery officer?   in a naval reserve unit or royal canadian sea cadet corp or summer training camp, a gunnery officer is responsible of the parade, morning and sunset procedures, protocal and in general discipline abord the unit. the gunners in the unit can be identified by the chain they wear...it looks like the boatswain's chain but is a little larger. also, they have a gunner's call, which resemble the old english police whistle. this tradition dates back to the royal navy and has been carried on to the rcsc.  originally also, gunnery officers would wear black leather gaiters, this tradition was flopped by the cf upon unification in the 60's.