|Isaacs Spitfire G-ISAC|
|Designer||John O. Isaacs|
|First flight||5 May 1975|
The Isaacs Spitfire is a single seat homebuilt sporting aircraft design created by John O. Isaacs, a former Supermarine employee and retired schoolmaster and designer of the Isaacs Fury, as a 6/10th scale replica of a Supermarine Spitfire. Its first flight was on 5 May 1975.
As per the original Spitfire, the Isaacs Spitfire was a cantilever low-wing monoplane of semi-elliptical planform. The twin spar wing was built in one piece, mainly of spruce with birch plywood skin. The fuselage was of identical construction. The landing gear was non-retractable and included a tailwheel.
Plans are available for sale to home constructors.
Data from Jane's All the World's Aircraft 1988-89 
- Crew: one pilot
- Length: 19 ft 3 in (5.88 m)
- Wingspan: 22 ft 1½ in (6.75 m)
- Height: 5 ft 8 in (1.73 m)
- Wing area: 87.0 ft² (8.08 m²)
- Empty weight: 805 lb (366 kg)
- Max. takeoff weight: 1,100 lb (499 kg)
- Powerplant: 1 × Continental O-200 flat-four piston engine, 100 hp (75 kW)
- Maximum speed: 150 mph at sea level (130 knots, 240 km/h)
- Cruise speed: 134 mph (116 knots, 215 km/h)
- Rate of climb: 1,100 ft/min (5.6 m/s)
- Aircraft of comparable role, configuration and era
- J.W.R Taylor, 1988, p.544.
- Taylor, John W R (1988). Jane's All the World's Aircraft 1988-89. Coulsdon, Surrey, UK: Jane's Information Group. ISBN 0-7106-0867-5.
- Taylor, Michael J. H. (1989). Jane's Encyclopedia of Aviation. London: Studio Editions. p. 535.
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