Williams J400

The Williams International J400 is a small turbojet engine developed by Williams Research to power target drones.

The J400 is a single-shaft, centrifugal/centrifugal-axial flow turbojet engine.

There are two versions of the J400, the WR2 which yields 125 lbs.

of thrust, and the more powerful WR24, which yields 190-240 pounds of thrust.

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