FMU 139 

"Approved for public release by PMA-201 dated June 27, 2003".

KDI Precision Products, Inc. possesses an outstanding capability in the design, development, and manufacture of precision mechanical and electromechanical Safety & Arming (S&A) mechanisms and timing devices. This capability is a direct result of KDI’s experience with fuzes and safe and arming devices for missiles, projectiles, and bombs employed by the U.S. Armed Forces and its Allies.

The FMU-139 B/B Bomb Fuze is an electronic impact/impact delay fuzing system developed for use by both U. S. Navy and Air Force in the MK 80 series and M117 low drag and high drag, guided or unguided, highexplosive bombs. In addition to impact/impact delay, the fuze is capable of accepting a signal from a separate proximity sensor.

The fuzing system meets all U. S. & NATO Navy and Air Force requirements, including the safety criteria of MIL-STD- 1316. The FMU-139 B/B fuze is compatible with most U. S. Air Force, Navy, Marine Corp., and NATO Aircraft. All arming functions and fuzing modes are contained in a single fuze that has two independent arming rotor locks, dual independent launch signals (Navy) and an air flow environment sensor (Air Force), and automatic retard deceleration recognition.