Aside from aircrew, whose work typically does not require active leadership for units of airmen, ground branch officers can expect to operate units that can range in size from a few specialist non-commissioned personnel to 50 or more personnel for engineering or other manpower intensive roles. The role of a flight lieutenant generally involves management of a team of specialist non-commissioned officers and airmen, within their specific branch. In the RAF Regiment, a flight lieutenant generally has the same role and responsibility as a captain in the British Army, in charge of a regiment flight of 30 men, and could be second-in-command of a squadron of up to 120 men.