In its training version the Hotspur was designated Mk.II (to Spec. X. 22/40) and differed from the Mk. I in having the wing span reduced 16 ft (4.88 m), modified flaps and ailerons, dual control for two pilots in tandem, revised entrance door and cockpit canopy. The loaded weight increased 148 lb (67 kg). Final version was the Hotspur Mk.III, which had an externally braced tail assembly, fifty were converted from Mk.IIs.
A total of 1,015 Hotspurs were produced, 18 Mk.Is were produced: 10 by General Aircraft and 8 by Slingsby, while 997 Mk.IIs were constructed: 1 by Airspeed and 996 by a production group managed by the furniture manufacturers Harris Lebus. The production group included Mulliners, Waring & Gillow, and William Lawrence & Co.
Span: 45 ft 10.75 in (7.20 m)
Length: 39 ft 3.5 in (6.20 m)
Height: 10 ft 10 in (2.33 m)
Weight empty: 1,661 lb (360 kg)
Loaded weight: 3,598 lb (572 kg)
Towing speed: 130 mph (145 kmh) at 29,527 ft (9,000 m)
Gliding speed: 90 mph (120 kmh) at 29,527 ft (9,000 m)
Landing speed: 56 mph (60 kmh)