Hawker Siddeley Harrier the AV-8C configuration; this programme involved the installation of ECM equipment and adding a new inertial navigation system to the aircraft's avionics. Substantial changes were the Lift Improvement Devices, to increase VTOL performance; at the same time several airframe components were restored or replaced to extend the life of the aircraft. Spain's Harriers, designated AV-8S or VA.1 Matador for the single-seater and TAV-8S or VAE.1 for the two-seater, were almost identical to USMC Harriers differing only in the radios fitted. The Royal Navy's Fleet Air Arm (FAA) operated a substantially modified variant of the Harrier, the British Aerospace Sea Harrier.
Hawker Siddeley Harrier the British pilot John Farley showed that the wooden deck of "Daedalus" was able to withstand the temperature of the gases generated by the Harrier. Since 1976, the Spanish Navy operated the AV-8S Matador from their aircraft carrier (formerly the ); the aircraft provided both air defence and strike capabilities for the Spanish fleet. Spain later purchased five Harriers directly from the British government to replace losses. Hawker Siddeley aggressively marketed the Harrier for export. At one point the company was holding talks with Australia, Brazil, Switzerland, India and Japan. Of these only India became a customer, purchasing the Sea