Description:
The Harpoon is an all weather, subsonic, over the horizon, anti-ship missile which can be launch from surface ships, submarines and aircraft. Its guidance system consists of a 3-axis integrated digital computer/ radar altimeter for midcourse guidance, and an active radar seeker for the terminal phase of the flight.
The Harpoon flies at subsonic speeds, with a sea-skimming flight trajectory for improved survivability through reduced probability of detection by enemy defenses. It was designed to strike enemy ships in an open ocean environment.
The aircraft launched AGM-84 Harpoon was introduced in 1979. It can be released from many aircraft types and doesn't have the solid fuel booster of the ship and submarine launched Harpoons.
The current AGM-84D was fielded in 1985. More advanced versions were planned but they were cancelled due to the Soviet Union collapse.
Specifications Dimensions: Diameter 340 mm, Length 3.9 m, Width 910 mm
Weights: Max Weight 526 kg (1,160 lb), Warhead 224 kg (494 lb)
Engine/s Performance: Thrust 660 lb (299 kg)
Performance: Max Range 124 km (67 nm), Top Speed 237 mps (Mach 0.71)
Australia
Oman / 20 
Spain
United States of America