Cierva

AAI AEG Aeritalia Aermacchi Aero Aero Commander Aeronca Aero Spacelines Aerostar Aerotec AeroVironment Agusta Agusta-Westland Aichi AIDC Airbus Helicopters Airbus Military Airco Airspeed Air Tractor Albatros GmbH Alekseyev Alenia Amiot AMX International ANF Les Mureaux Ansaldo Antonov Arado Armstrong Whitworth Arsenal Atlantic Aircraft Atlas Aircraft Avia Aviatik Avions Fairey Avro Avro Canada Aérospatiale Aérospatiale-MBB BAC Bachem BAe Basler Baykar Beagle Aircraft Beechcraft Bell Bell-Boeing Bellanca Bell Helicopter Beriev Berliner-Joyce Besson Blackburn Bloch Blohm und Voss Blériot Blériot-SPAD Boeing Boeing-Sikorsky Boeing-Stearman Boeing Vertol Bombardier Boulton Paul Bratukhin Breda Breguet Brewster Bristol Britten-Norman Budd Bücker CAMS Can-Car/Gregor Canadair Canadian Aeroplanes Canadian Vickers Caproni CASA Caudron Cavalier Cessna Changhe Chengdu Chengdu/PAC Chyetverikov Cicaré Cierva Cirrus Citroën Commonwealth Conair Consolidated Convair - Consolidated Vultee CRDA - CANT Culver Curtiss Dassault Dassault-Breguet Dassault-Breguet/Dornier Dassault Aviation De Havilland De Havilland Australia De Havilland Canada Denel Desoutter Dewoitine DFS Diamond DINFIA Doak Donnet-Denhaut Dornier Douglas Dyle et Bacalan Dätwyler EADS EDO EKW (K+W) Elbit Embraer EMT ENAER English Electric Enstrom Erickson Eurocopter Eurofighter EWR Fairchild Fairchild-Republic Fairchild Canada Fairey Farman Felixstowe FFA FFVS Fiat Fieseler Firestone Fisher Fleet Flettner FMA Focke-Achgelis Focke-Wulf Fokker (All) Fokker (P-B) Folland Ford Fouga Fuji GAF General Aircraft Limited General Atomics General Aviation General Dynamics General Dynamics-Grumman Gloster Goodyear Gotha Gourdou-Leseurre Great Lakes Grigorovich Grob Grumman Guimbal Guizhou Gulfstream Aerospace Gyrodyne HAL Halberstadt Hall Handley Page Hanriot Hanriot-Dupont Hansa-Brandenburg Harbin Hawker Hawker-Siddeley Heinkel Helio Henschel HESA Hiller Hispano Hongdu Howard Hughes Hunting Percival Hurel-Dubois I.A.I. I.A.R. Ikarus Ilyushin Indonesian Aerospace Interstate IVL Jodel Junkers KAI Kaiser-Fleetwings Kaman Kamov Kawanishi Kawasaki Kayaba Kazan KB Sat Kellett Keystone Klemm Kokusai Koolhoven Kugisho Kyushu LACAB Latécoère Lavotchkin Leduc Leonardo Let Letord Letov Levasseur Levy-Biche LFG Roland Lioré et Olivier Lisunov Lockheed Lockheed-Martin Loening Loire Loire-Nieuport Lorraine Hanriot LVG LWD LWS M.B.B. Macchi Mansyu Marinens F. Martin Martin-Baker Martinsyde Max Holste McDonnell McDonnell-Douglas MD Helicopter Meridionali Messerschmitt Mikoyan Mikoyan-Gurevich Mil Miles Mitsubishi Morane-Saulnier Mudry Myasishchev Nakajima NAMC Nanchang Nardi NASA Naval Aircraft Factory Neiva NHIndustries Nieuport Nieuport-Delage Noorduyn Nord North American North American-Rockwell Northrop Northrop Grumman On Mark P.Z.L. PAC Panavia Partenavia Pemberton-Billing Percival Petlyakov Pfalz Piaggio Piasecki Pilatus Piper Plage & Laśkiewicz Platt-LePage Polikarpov Potez PWS R.A.F. Raytheon Reggiane Reims Aviation Renard Republic Repülőgépgyár Rikugun Robin Robinson Rockwell Rockwell / MBB Rogozarski Rumpler RWD Ryan S.A.I. Saab Sagem SAI Ambrosini Salmson Saunders-Roe Savoia-Marchetti Schiebel Schreck Schweizer Scottish Aviation SEPECAT Seversky Shaanxi Shenyang ShinMaywa Short Showa SIAI-Marchetti Siddeley Siebel Siemens-Schuckert Sikorsky SIPA Slingsby Aviation SNCAC SNCAO SNECMA Socata Soko Sopwith SPAD Spartan Stampe Stinson STT Sud-Aviation Sud-Est Sud-Ouest Sukhoï Supermarine Svenska Tachikawa Tadiran TAI Taylorcraft Taylorcraft (UK) TEMCO Thales Thomas-Morse Timm Tokyo Koku Tomashevich Tupolev Udet Utva ValMet Vertol VFW Vickers Viking VL Voisin Vought Vought (L.T.V.) Vultee Waco Watanabe Westland Wibault Xian Yakovlev Yokosuka Zeppelin-Staaken Zlín Zmaj Fizir