The Warbler was a parasol wing monoplane with internal bracing designed by Sqdn Ldr L J R Wackett, an officer in the RAAF at the time in charge of the Government Experimental Aeroplane Factory in Sydney.

The CAP 232 was the result of many years of development by Cap Aviation of Darois, France, which commenced operations in the 1950s as a result of a French Government inspired competition.