Thực đơn
Northrop_Delta Biến thểThực đơn
Northrop_Delta Biến thểLiên quan
North American P-51 Mustang North Carolina (lớp thiết giáp hạm) North American F-86 Sabre Northrop Grumman B-2 Spirit Northrop F-5 Northrop Grumman RQ-4 Global Hawk North American B-25 Mitchell Northrop P-61 Black Widow North American F-100 Super Sabre North Bucks & District Football LeagueTài liệu tham khảo
WikiPedia: Northrop_Delta http://www.airwaysmuseum.com/Northrop%20D.1%20Delt... http://www.canadianwings.com/Aircraft/aircraftDeta... http://www.flightglobal.com/pdfarchive/view/1934/1...