The aircraft is a 2⁄3 scale replica of the North American P-51 Mustang and is supplied as a kit or as plans for amateur construction.
By 1967, Falconar recommended a large number of changes to the design, which resulted in Jurca leaving the project.
The modified aircraft was developed as the SAL Mustang and first flown in 1971 after significant cost overruns.
[4] The SAL Mustang features a cantilever low-wing, a single-seat, or optionally a two-seats-in-tandem, enclosed cockpit under a bubble canopy, retractable conventional landing gear, including a manually retractable tailwheel and a single engine in tractor configuration.
[1][2][5] The paper plans supplied total an area of 450 sq ft (42 m2), weigh 13 lb (5.9 kg) and include a construction manual.