1. This Motor Torpedo Boat Manual (short title--Motorprons Two) is approved and issued to the service for use. This manual is RESTRICTED, may be issued to officers and petty officers of the Navy, and for instruction of naval personnel. It shall not be carried in aircraft for use therein.

2. Although motor torpedo boats are a relatively new weapon, considerable operating experience has been accumulated. Peacetime operation promoted valuable experimental work and the development of tactical, administrative, and operative procedures. Wartime operation against the enemy in the...