Armed with a 30mm Chain Gun under the nose, Hellfire missiles and 2.75” rockets on the stub wings, the AH-64D proved its mettle in Iraq and Afghanistan against a wide array of threats. Based on the AH-64A, the “Delta” version is a tandem-crewed helicopter with the pilot in the back seat and the co-pilot/gunner (CP/G) in the front. The AH-64D served as the backbone of the U.S. The AH-64 was first deployed in 1986 and some 2400 have been delivered.