N-300 ayaa laftiisa laga soo qaatay F-5E, waxaana lagu soo bandhigay jir dherer ah, fiditaanno yaryar oo jilicsan oo jilicsan oo jilicsan (LERX), iyo GE15-J1A1 turbojets oo awood badan, oo lagu qiimeeyay 9,000 lbf (40 kN) midkiiba. Garabka ayaa waxyar kor loo qaaday si loo kordhiyo dabacsanaanta hubka. N-300 ayaa sii horumariyay P-530 Cobra, oo adeegsanaya 13,000 lbf (58 kN) GE15-J1A5 matoorrada, oo leh.25 bypass ratio aad u yar oo horseedaya magaca "turbojet dabacsan".
Mashruuca Northrop ee N-300