The Nomad began life in the late 1960s at the Government Aircraft Factories (GAF) as Project N. In January 1970, the government funded two prototypes of the twin-engined multi-purpose transport, now known as N2, aimed at both the military and civil markets. The N22 was the military utility aircraft which became the N22B in production, and the lengthened commercial development became the N24. VH-SUP was the first prototype and flew on 23 July 1971. It had been planned to give the type an Aboriginal name, but it became the Nomad.
From RAAF museum site.
Blackhand