Copy No.   1670
	Found under GT Nr.119 in the Catalogue of Regulations of  the Torpedo Trials Institute
	S E C R E T !
	T  o  r  p  e  d  o    G  7a
	Drawings
	Fly leafs 1 to 18 incorporated.
	Published by the Torpedo Trials Institute
	Eckernförde, September 1941.
	Navy Official Instruction Number

	C  o  n  t  e  n  t  s
	Plate Torpedo G7a 1 Exercise head (1210) 3 Blowing mechanism 3a Starting and pressure regulating valve 4 Noise generator 5 Exercise head (1215) 6 Double blowing mechanism 6a Schematic diagram 6c Air flask 7 Fuel oil and water chamber with air flask shutoff valve, pressure equalizer and oil tank for the engine 8 After body    view from port 9 After body    cross-section 10 Filling and shut off valve with water check valve for gyroscope, regulating valve with oil tank, engine shutoff and over-pressure regulating valve 11 Starting gear with water impact flap 12 Combustion pot 13 Engine 14 Cooling water pump 15 Speed regulating valve and safety fuze 16 Stop and rudder locking gear with lubrication oil flow interrupter 17 Depth control mechanism 18 Regulating nozzle (service air input), steering engine, depth rudder linkage 19 Gyroscope VIII 20 Reducing valve for gyroscope 21 Gyroscope-assembly and gyroscope-steering linkage 22 Angle-setting gear 22a Tail piece 23 Forward drive propeller from aft, forward and aft drive propellers seen from aft, relationship of the four-bladed drive propellers and crank to each other at "ready for shooting" position, relationship of the six-bladed drive propellers and crank to each other at "ready for shooting" position 24 Air, water, fuel, and oil paths 25 Schematic diagrams 26

Click on the thumbnails below to view a full sized plate and translated key

		Plate 1 - Torpedo G7a
		Plate 3 - Exercise head (1210)
		Plate 3a - Blowing mechanism
		Plate 4 - Starting and pressure regulating valve
		Plate 5 - Noise generator
		Plate 6 - Exercise head (1215)
		Plate 6a - Double blowing mechanism
		Plate 6c -Schematic diagram
		Plate 7 - Air flask
		Plate 8 - Fuel oil and water chamber with air flask shutoff valve, pressure equalizer and oil tank for the engine
		Plate 9 - After body    view from port
		Plate 10 - After body   cross-section
		Plate 11 - Filling and shut off valve with water check valve for GA, regulating valve with oil tank, engine shutoff and over-pressure regulating valve
		Plate 12 - Starting gear with water flap valve
		Plate 13 - Combustion pot
		Plate 14 - Engine
		Plate 15 - Cooling water pump
		Plate 16 - Speed setting gear and safety fuze
		Plate 17 - Stop and rudder locking gear with lubrication oil flow interrupter
		Plate 18 - Depth control mechanism
		Plate 19 - Regulating nozzle (service air input), steering engine, depth rudder linkage
		Plate 20 - Gyroscope VIII
		Plate 21 - Reducing valve for gyroscope
		Plate 22 - Gyroscope-assembly and gyroscope-steering linkage
		Plate 22a - Angle-setting device
		Plate 23 - Tail piece
		Plate 24 - Plate 24:  Forward drive propeller from aft, forward and aft drive propellers seen from aft, relationship of the four-bladed drive propellers and crank to each other at "ready for shooting" position, relationship of the six-bladed drive propellers and crank to each other at "ready for shooting" position
		Plate 25 - Air, water, fuel, and oil paths
		Plate 26 - Schematic Diagrams

	Keywords
	Blowing mechanism   3a   Midship section shutoff valve Compressed air flask  1, 7   Shutoff valve  8   Compressed air flask  3   Cooling water pump  15   Cut-off valve  11 Combustion pot  13 Depth control mechanism   18, 26   Depth rudder linkage  9, 19, 26   Dimensions  1   Double blowing mechanism   6a   Propellers  24 Engine section  1, 9, 10   Engine stop gear   11   Engine  14   Exercise head (1210)  1, 3   Exercise head (1215)  6 Filling valve  11   Fuel oil tank  8   Fuel oil pathway  25 Gyroscope VIII  20, 26   Gyroscope-assembly 22   Gtroscope-steering linkage  9, 22, 26 Igniter 13 Lubrication oil flow interrupter   17 Lubricating oil tank for crosshead  23   Lubricating oil tank for engine  8   Oil container for pressure regulating valve  11   Oil path  25   Safety fuse  16 Over-pressure regulating valve  11   After body  1, 9, 10   Air path  25   Angle setting gear   22, 22a Pressure reducing valve  3, 4   Pressure regulating valve  11, 26   Pressure equalizer  8 Regulating nozzle  19   Reducing valve for GA  21   Rudder locking gear  17, 26 Schematic diagrams  26   Speed setting gear  16, 26   Starting valve  4   Starting gear  12, 26   Steering engine for GA  20, 26   Steering engine  19, 26   Engine stop gear  17   Switch diagram  6c Tail piece   1, 23   Noise generator  3, 5   Torpedo tube safety mechanism  12, 26 Water chamber  1, 8   Water check valve for gyroscope   11

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