Training Circular 3-20.31-120 Gunnery: Heavy Tank - U.S. Army
A more difficult "run" phase designed to be harder than the actual qualification. It tests the crew's ability to engage moving targets in various tactical scenarios. tc+32031+training+and+qualification+crew+pdf
While "TC" can refer to "Training Certificate" or "Type Certificate" in various manuals, within the DP and Special Vessel context, is widely recognized as a reference to the DP Operator Logbook and Training Record Sheet , particularly under The Nautical Institute’s (NI) DP scheme, which is mandated globally for vessels like Drill Ships, Shuttle Tankers, and OSVs. Training Circular 3-20