The Sea Eagle is a British air-to-surface fire-and-forget sea-skimming missile with active radar homing, that was designed from 1976 and entered service in 1986. The Sea Eagle has a range of 130 km and a speed of about Mach 1 or 0.3 km per second. The Sea Eagle carries a 500 lb impact delay-fused penetrating blast/fragmentation warhead. Research Sea Eagle