The NF showed on this flyer ,(and the very early Militar model) is a prototype, which has never come to production;however few exemplares come to the market with small flywheel)
He had very good performance , similar to the mythic Falcone Sport ;
but unfortunely,following the Italian Army comments, based on the use and duty for what was destined, has been revised and his perpormance reduced in order to be used by less qualified and with less pilot skill of army personnel (mainly young fellows from compulsory army service) and reduced compression ratio in order to use poor quality gasoline , remember that the NF has been provided to Albania, Yugoslavia...
http://imageshack.com/a/img922/5171/dn69IE.jpg