AFVGs were also planned to replace the Buccaneer in the Royal Navy—Tornados were never flown by the Royal Navy, as the carriers for them, the CVA-01s, were cancelled. But the Royal Navy did operate fourteen Phantoms on Ark Royal, until the new smaller carriers entered service—48 Phantoms had been designated for the Fleet Air Arm, with twenty of these ending up at Leuchars, and Ark Royal's Phantoms ended up at Leuchars in 1978. Eagle was never converted to Phantom use as it was deemed too expensive, and the carrier was scrapped in January 1972, with its Sea Vixen aircraft. Another alternative considered by the Labour government in July 1965 for the TSR-2 was to order Spey-engined French Mirage IV aircraft, to be known as the Mirage IVS; it would have avionics from the TSR-2, and be partly made by BAC at Warton.