The apparent readiness of a fully rigged guard ship concealed how much its actual capability depended on manning. One-quarter was the normal peacetime floor, while a wartime guard ship might carry one-half to two-thirds of its crew. A quarter crew could maintain the ship and operate roughly one gun deck, while half a crew could produce a full broadside but could not simultaneously handle the sails. At roughly two-thirds or three-quarters strength, the ship could combine most of its gunnery with basic manoeuvring. Ports could therefore increase security incrementally by raising crew levels without fully commissioning a ship for general deployment.
Notable Point · 3:50-7:21
What quarter, half, and two-thirds crews could do
Crew fractions translated into distinct combat capabilities, from manning one gun deck to firing a broadside or combining gunnery with limited sailing.