Porsche 109 005

The Porsche 109-005 was a turbojet engine, with the factory designation of "TL-300", intended to power the FZG-76B long-range missile (an improved version of the V-1 flying bomb known as the FZG-76), and proposed for use (along with a pair of the V-1's Argus As 014 pulsejets) by Messerschmitt AG for one proposal for the design of the abortive Messerschmitt Me 328 emergency fighter.

The engine was 11.25 feet (3.43 m) long and 1.9 feet (0.58 m) in diameter, with eight compressor stages and a single turbine stage. It had a designed thrust of 1,100 pounds-force (4.9 kN) and a fuel capacity of 140 US gallons (530 L).