The Handley Page H.P.100 circa 1964
The H.P.100 was Handley Page's submission for OR.330. This canard delta wing aircraft was designed to cruise at Mach 2.5 at 65,000ft (zoom capability to 100,000ft). Titanium construction would have been used and the aircraft was powered by twelve RB.121 jet engines! It was designed to fly 5,000nm without flight refuelling (6,020nm with refuelling). A retractable visor was fitted for good visibility on landing. Four crew would be carried (2 pilots and 2 navigators), the Red Drover SLAR was fitted in the fuselage. Handley Page foresaw the later addition of a bomber capability (as happened when the Avro 730 was selected) and a powered-bomb or ballistic missile could be carried externally beneath the fuselage. A mock-up was built, the H.P.100 was the favoured submission, the Avro 730 had slightly more range but otherwise both types were equally as good but the Air Staff felt that Avro would deliver on time so the 730 was finally selected. As we know even had the H.P.100 been selected it wouldn't have progressed through 1957 but this was one impressive aircraft.