Throughout her 33-year career, the crew of the "Mary Rose" changed several times and varied considerably in size. It would have a minimal skeleton crew of 17 men or fewer in peacetime and when she was "laid up in ordinary" (in reserve). The average wartime manning would have been about 185 soldiers, 200 sailors, 20–30 gunners and an assortment of other specialists such as surgeons, trumpeters and members of the admiral's staff, for a total of 400–450 men. When taking part in land invasions or raids, such as in the summer of 1512, the number of soldiers could have swelled to just over 400 for a combined total of more than 700. Even with the normal crew size of around 400, the ship was quite crowded, and with additional soldiers would have been extremely cramped.