The Buccaneer exists because of a warship. In 1951–52 the Soviet Navy began building the Sverdlov-class gun cruisers, fast surface raiders that could threaten NATO’s Atlantic convoys and sea lanes. The Royal Navy’s answer was not a bigger gun but a smarter delivery method: an aircraft that could approach at extreme low level, hidden by the curvature of the earth from a ship’s radar, pop up only at the last moment, and toss a nuclear or conventional bomb onto the target.

That single mission — fast, very low, over the sea, with a heavy warload — shaped every unusual feature of the airframe. It also explains why the Buccaneer aged so well: flying under radar cover stayed relevant right through the Cold War, long after high-flying bombers had become easy prey for surface-to-air missiles.

Carrier aircraft live and die by approach speed — too fast and the arrester gear cannot stop them, too slow and the wing stalls. The Buccaneer was heavy, and a conventional wing would have needed an approach speed no deck could accept. Blackburn’s fix was supercirculation: high-pressure air tapped from the engine compressors was ducted to fine slots along the wing leading edge, the flaps and the tailplane, and blown at high velocity over the surfaces. This re-energised the boundary layer, delayed the stall and dramatically increased lift at low speed. The system let a 25-tonne jet approach a pitching carrier deck under full control — but it was thirsty for engine air, one reason the underpowered S.1 was replaced by the Spey-engined S.2.

The first Buccaneers, the S.1, used de Havilland Gyron Junior turbojets and were chronically short of thrust — dangerous on a hot day off a carrier. The definitive S.2 switched to two Rolls-Royce Spey Mk 101 turbofans of around 49 kN each. The Spey was not just more powerful; as a turbofan it was far more fuel-efficient than a turbojet, which gave the Buccaneer the long low-level range it needed to strike ships far from the fleet and return. The same efficient thrust drove it to around Mach 0.85 down in the weeds — fast enough to be through the target area before defences could react.

The Buccaneer was a British government military procurement of the late 1950s and 1960s, never sold on an open commercial market, so a firm modern-equivalent flyaway unit price simply is not part of the public record. Period programme costs were bound up with cancelled projects and the politics of the era — the RAF only took the type after the far more expensive BAC TSR-2 was cancelled in 1965. Any single dollar figure attached to a Buccaneer should be read as an estimate rather than a sourced number, and no credible public cost-per-flight-hour figure exists for the type.