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The Porsche 005 (full RLM designation 109-005) was a small, single-use turbojet design intended to power a long-range version of the V-1 flying bomb. At the end of World War II, the design of the Porsche 005 turbojet had not been finalised and no parts had been constructed.

Design and development

The Argus As 014 pulsejet used in production V-1 flying bombs was simple to build but relatively fuel inefficient. Design of the Porsche 005 began in late 1944 with the aim of providing a more fuel efficient engine for the V-1 allowing for greater ranges. The use of the Porsche 005 turbojet was projected to increase the range of the V-1 from 240 km (149 mi) to 700 km (435 mi) and allow launching without ramps.

During the last months of World War II the Porsche 005 project was being led by Dr Max Adolf Mueller, who had worked on jet engine projects for both Junkers and Heinkel. Dr Mueller was taken into captivity at the end of the war, and later prepared a drawing of the Porsche 005 for American investigators. Post-war, Porsche did not continue work on gas turbines or jet engines.

Specifications

Note that only limited progress on the Porsche 005 design had been made by the end of World War II. Known engine data and targeted performance is shown:

General characteristics

• Type: Turbojet
• Length: 2,850 mm (112 in)
• Diameter: 650 mm (25.6 in)
• Dry weight: 200 kg (441 lb) for complete power unit

Components

• Compressor: Axial flow

Performance

• Maximum thrust: 500 kg (1,102 lb) static
• Overall pressure ratio: 2.8:1
• Thrust-to-weight ratio: 2.5

References

1. Pocock, Rowland (1967). German Guided Missiles of the Second World War. Arco Publishing Company. p. 24.
2. ^ Zaloga, Steven (2005). V1 Flying Bomb 1942-1952. Osprey. p. 64. ISBN 9781841767918.
3. ^ Kay, Antony L (2002). German Jet Engine and Gas Turbine Development 1930-1945. Airlife Publishing Ltd. pp. 153–155. ISBN 9781840372946.
4. Meher-Homji, Cyrus B; Prisell, Erik (7–10 June 1999). Pioneering Turbojet Developments of Dr. Hans Von Ohain from the HeS 1 to the HeS 011. International Gas Turbine & Aeroengine Congress & Exhibition. Indianapolis, Indiana: American Society of Mechanical Engineers (ASME).

• 1940s turbojet engines
• Porsche