Companies A, B, C, and D – the tank line companies, both medium and light, all followed the same table of organization. Each company consisted of a headquarters section which, along with a small headquarters staff, also included two tanks (one for the company commander and one for the executive officer); and three five-tank platoons. The medium tank companies were equipped with M4 Sherman tanks, while the light tank company was equipped with M5 Stuart tanks. All four companies had their own maintenance section, which included an M32 Tank Recovery Vehicle, built on a Sherman chassis. Because the Stuart carried a 4-man crew versus a 5-man crew on the Sherman, it had a somewhat smaller personnel strength than the medium tank companies. For the Normandy landings, Companies B and C were equipped with DD tanks. As virtually all these tanks were lost during the assault on D-Day, they were replaced with conventional M4 Shermans as soon as the battalion began receiving replacement equipment.