Subsequently a turbo-prop powered variant was developed, initially designated NDN 1T Turbo-Firecracker. This was fitted with a 715 eshp Pratt & Whitney Canada PT-6A-25A turbo-prop, driving also a three-blade Hoffmann constant-speed propeller. An order for three of this version, with options on a further four, was placed in September 1982 by Specialist Flying Training Ltd. (SFT) of Hamble, Hampshire. (SFT was specialized in the training of military pilots for overseas governments.) The aircraft were being marketed by a new company known as Firecracker Aircraft (UK) Ltd. The first Turbo-Firecracker, registered G-SFTR, flew on September 1, 1983, again with Desmond Norman at the controls, accompanied by John Davy of SFT. The second aircraft, G-SFTS, was flown on February 18, 1984 and the Turbo-Firecracker was certificated on March 23, 1984.
On September 1, 1984, Hunting Firecracker Aircraft Ltd. was formed to bid for the contract to build the RAF's new basic trainer to replace the Jet Provost. Eventually the Firecracker (the Turbo prefix was dropped), was one of the four finalists evaluated in 1984 as candidates for the contract, however, on March 21, 1985, the Tucano was selected for the contract. Subsequently Desmond Norman renamed his company The Norman Airplane Company Ltd. on July 22, 1985, and Hunting Firecracker handed back responsibility for the Firecracker to Normans in September 1986. No further aircraft were built.
Presently the single NDN 1 and the three NDN 1T's built are registered in the USA:
NDN 1 (c/n 001 ex G-NDNI) as N182FR, owner Flight Research Inc. at Starkville, Mississippi
NDN 1T (c/n 005 ex G-SFTR) as N2157C, owner Flight Research Inc. at Starkville, Mississippi
NDN 1T (c/n 006 ex G-SFTS) as N50FK, owner Firecracker Inc., Eugene, Oregon
NDN 1T (c/n 007 ex G-SFTT) as N70878, owner Firecracker Inc., Eugene, Oregon
Presently the three NDN 1T's, the Type Certificate, and production tools are for sale."