Всего построено шесть Fieldmaster, один - переоборудовали в вариант Firemaster. Коммерческого успеха самолет не имел.
The prototype NDN-6 Fieldmaster agricultural aircraft on test from Sandown, Isle of Wight.

The Fieldmaster making its public debut at Farnborough in February 1982

A close-up of the external aerofoil aileron.

Photographed on an early test flight from its base at Sandown on the Isle of Wight, the Fieldmaster displays its utilitarian lines. Certification testing will occupy the next year or so.