The CT/4 Airtrainer was the primary pilot training aircraft for the Royal New Zealand Air Force (RNZAF) for nearly 40 years, and the only New Zealand-designed and manufactured aircraft to have ever been operated by the RNZAF. The RNZAF ordered 19 CT/4Bs in July 1975, to replace its ageing fleet of Harvards.

In 1980, the RNZAF aerobatic display team, the Red Checkers, reformed using the CT/4B and were regular performers at air shows and public events around New Zealand until their disbandment following the retirement of the Airtrainer (CT/4E model) in 2015.