A contract was placed for kits to update and modify 270 F-16As at the Ogden Alr Logistics Center in Utah. A spotlight was to be installed on the side of the nose to aid in the identification of nighttime intruders. This system has not yet been approved for export. A 150,000 candlepower night identification spotlight is mounted on the port side of the nose. The Grimes-built light is canted 70 degrees to the left of forward and 10 degrees up.
Bs have it as well.
ADF versions have the AIFF of the A version, but not the HF radios and the distinctive thin bulge which identify F-16A ADFs. Both A and B ADF versions carry the spotlight. The ADF is the only American Fighting Falcon with Sparrow capability. The innermost pair of underwing pylons are reserved for 360 US gallon droptanks, and the centerline hardpoint can carry a 300 US gallong external fuel tank. The internal M61A1 20-mm cannon with 511 rounds is retained.