The N-300 akanga pacharo rakabva F-5E, uye inoratidza refu fuselage, duku kutungamirira-kumucheto mudzi extensions (LERX), uye zvikuru simba GE15-J1A1 turbojets, yavose sezvavakatarirwa pa 9,000 lbf (40 kN) mumwe. The bapiro akanga zvishoma akasimudzwa kuwedzera zvombo mukana wokushandiswa. The N-300 mberi yakashanduka kupinda P-530 Cobra, iyo inoshandisa 13,000 lbf (58 kN) GE15-J1A5 injini, ane duku chaizvo.25 bypass reshiyo kuti zita remadunhurirwa rokuti "leaky turbojet".
Northrop purojekiti N-300