Nihon Hikoki Kabushiki Kaisha (Japan Aircraft Manufacturing Co Ltd)
This company was engaged mainly on overhaul of US Navy aircraft and of the 60 Grumman Tracker anti-submarine aircraft of the JMSDF.
It built the mock-up of the NAMC YS-11 and was responsible for the design and production of components for this transport.
Under JASDF contract, Japan Aircraft Manufacturing Co carried out a lengthy high-lift research programme with a much-modified Saab-91B Safir.
With the designation Z1G3, this aircraft has a 260 h.p. Continental IO-470-D engine, reduced span of 31ft 6in, blown flaps, large trailing-edge fillets, slotted tailplane and other changes to give it STOL performance.