Porsche 005

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.^[1][2][3] At the end of World War II, the design of the Porsche 005 turbojet had not been finalised and no parts had been constructed.^[3]

Porsche 005
Type	Turbojet
National origin	Germany
Design group	Porsche KG
Major applications	V-1 flying bomb (planned)
Status	Unbuilt design

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.^[3]

During the last months of World War II the Porsche 005 project was being led by Dr Max Adolf Mueller,^[3] who had worked on jet engine projects for both Junkers and Heinkel.^[3][4] 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.^[3]

Specifications

Note that only limited progress on the Porsche 005 design had been made by the end of World War II.^[2][3] Known engine data and targeted performance is shown:^[3]

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