[1][2][3] A replica of the famous British Supermarine Spitfire World War II fighter, it was originally produced to 75% scale.

Australian pilot and aviation engineer Mike O'Sullivan had always wanted a Spitfire and built a replica for his own use in 1991.

The design features electrically-operated retractable undercarriage, with differential braking to the main wheels, and landing flaps.

[9][10] The company has since moved to Cisco Airport, Texas with its head office in nearby Clyde.

[5] The prototype Mk 25 was initially fitted with a Rotax engine, before development progressed through a series of more powerful Jabiru types.

[4] Early production models were powered by eight-cylinder, 200 hp (149 kW) Jabiru engines made in Australia.

Recent developments of the Jabiru engine range by Rotec have produced replacement water-cooled cylinder heads for the 5100.

[6] After a fatal accident at Gympie, Australia, in October 2010, involving a Mk 26, the coroner reported, on December 29, 2014.

"[15] In August 2023, a Mk 26B 90% scale Spitfire crashed near Enstone, Oxfordshire, United Kingdom.