(under the class definition) Subject matter including fish or automobile torpedoes, the power or propulsion being self-contained and nearly always actuating screw-propellers, which propel the torpedo on the surface or at any desired depth.
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238, for torpedo launching.
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102, Ammunition and Explosives,
406+, and indented subclasses for submarine mines; subclasses 347+ for pyrotechnic rockets and subclasses 374+ for aerial missiles having a reaction motor propulsion means.
318, Electricity: Motive Power Systems, appropriate subclasses, for electric motor systems which might be used to either steer or propel a torpedo; particularly 580+, and 648+ for automatic control of electric motors in response to direction, inclination or angular position.
