The Cameron P-51G, also known as the Grand 51, is a civilian-built, full-scale representation of the North American P-51 Mustang. Unlike the original wartime fighter, the Grand 51 was designed as a turbine-powered sportplane and kit-built aircraft, utilizing modern materials to replicate the classic silhouette while offering updated performance and utility. Design work on the project commenced in 1988, though the aircraft was not publicly announced until 1997. The prototype completed its first flight in 1998 and was subsequently displayed at Oshkosh in July of that same year.
Technically, the aircraft deviates significantly from the original P-51 configuration. While the original was a single-seat combat aircraft, the Grand 51 features a tandem-seat layout for a pilot and passenger, housed under a one-piece hinged canopy. Dual controls were provided as a standard feature, and the aircraft was equipped with IFR avionics built to customer specifications. The prototype was designed with a fuel capacity of 1,703 litres (450 US gal), whereas kit-built versions featured a capacity of 946 litres (250 US gal) with the option to add a 757-litre (200 US gal) auxiliary tank.
Power is provided by a Textron Lycoming T53-L-701A turboprop engine, producing 1,081 kW (1,450 shp). This engine drives a three-blade Hamilton Sundstrand propeller that is fully feathering and reversible. Although the design allows for the installation of a Rolls-Royce Merlin piston engine, the turbine configuration is the primary characteristic of the P-51G. Performance specifications for the aircraft include a maximum takeoff weight (MTOW) of 3.8 tonnes, a length of 10.9 m, a wingspan of 11.2 m, and a height of 3.3 m. It is capable of reaching a maximum range of 1,000 nautical miles.
Production details remain limited. Beyond the initial prototype, records indicate that two production aircraft were under construction at the time of reporting, though total completed deliveries are unconfirmed. The aircraft serves as a notable example of the modern warbird replica movement, blending historical aesthetics with turboprop efficiency for the civilian aviation market.