===
O'Bannon === (Clyde & Ralph O'Bannon, 510 S Kenilworth Ave, Oak Park, IL) •
O'Bannon 31 O'Brien-Hudson • See
Hudson & O'Brien ===
O'Hara === (Robert O'Hara, San Fernando, CA) •
O'Hara 1977 Biplane •
O'Neill Model W ===
Oakland === (Oakland Airmotive Co, Oakland, CA) •
Oakland Centaurus OAW (
Ostdeutsche Albatroswerke G.m.b.H.) • see:
Albatros OAW ===
Oaxaca=== (Oaxaca Aerospace / Raul and Rodrigo Fernandez) •
Oaxaca PE-210A Pegasus ===
Ochoa === (V L Ochoa, Arlington, NJ) •
Ochoa Jersey Devil a.k.a. Jersey Mosquito ===
Oberlerchner === (
Josef Oberlerchner Holzindustrie / Ing. Fritz Birkner) •
Oberlerchner JOB 5 •
Oberlerchner JOB 15 •
Oberlerchner Mg 23 ===
Odesaviaremservice === •
Odesaviaremservice C-9 Dolphin ===
Odier=== (Antoine Odier - see:
ESTA) ===
Oeffag === (
Österreichische Flugzeugfabrik AG) •
Note: Öffag were allocated 50 series numbers for experimental and prototype aircraft. •
Oeffag 50.01 •
Oeffag 50.02 •
Oertz W 5 •
Ogawa No.2 •
ÕGL PON-1A •
LKOD KOD-1 13 PON-1 license-built in Latvia by LKOD -
Kara Ostas Darbnica •
ÕGL PON-2 •
ÕGL PTO-4 •
OKB-1 140 •
OKB-1 150 ===
Olagnier=== (Rémy Olagnier) •
Olagnier 01 ===
Oldfield === (Barney Oldfield Aircraft Co, Cleveland, OH) •
Oldfield Baby Lakes ===
Oldtimer === •
Oldtimer M-17 Double Decker ===
Oleson === (Clifton P "Ole" Oleson, IA) •
Oleson 1921 Biplane ===
Olsen-Thomas === ((Albert & Lars) Olsen-(Ward) Thomas, Middletown, NJ) •
Olsen-Thomas Parasol XP1-40 ===
OMAREAL=== (
Officina de Manutenção e Recuperção de Avioes, Ltda.) •
OMAREAL Casmuniz 52 •
OMAREAL W-141 ===
Omega === (Omega Aircraft Corp) •
Omega BS-12 •
Omega BS-12B •
Omega BS-12D-1 •
Omega BS-12D-3 •
Omega BS-12F •
Omega BS-12J •
Omega BS-14 Falcon •
Omega BS-17A Airliner ===
OMF=== (Ostmecklenburgische Flugzeugbau) •
OMF-100-160 Symphony ===
Omni Weld === (Omni-Weld Company) •
Omni Weld Questor ===
Ong === ((William) Ong Aircraft Corp, 838 Richards Rd, Kansas City, MO) •
Ong M-32-W Continental ===
Orliński=== (Roman Orliński) •
Orliński RO-7 Orlik ===
Orta St. Hubert=== (St.Hubert Aircraft Engineering Works - Mr. Pierre Baudoux and Mr. Jose Orta) •
Orta-St.Hubert G.1 •
Orta-St.Hubert SG.1 •
Orta-St.Hubert 135BO ===
OOS === (
Otdel Opytnogo Samolyetostroeniya - section for experimental aircraft construction) •
OOS Stal-2 •
OOS Stal-3 •
OOS Stal-5 •
OOS Stal-11 •
OOS Aviatourist •
OOS KhB ===
Opel === (Fritz von Opel) •
Opel RAK.1 (a.k.a. Opel-Hatry RAK.1 or Opel-Sander RAK.1) ===
Opener, Inc.=== (Palo Alto, California, United States) •
Opener BlackFly ===
OpenSky === •
OpenSky M-02 ===
Öppulennuk === () •
Öppulennuk PTO-4 ===
Optery X=== (Optery X Engineering Ltd.) •
Optery X MXIII ===
Option Air === (Option Air Reno (Pres: Carl O. Barlow), Reno, NV) •
Option Air Acapella 100-L •
Orenco B •
Orenco C •
Orlogsvaerftet HM.II •
Orlogsvaerftet H.B.I •
Orlogsvaerftet H.B.II •
Orlogsvaerftet L.B.I •
Orlogsvaerftet L.B.II •
Orlogsvaerftet L.B.IV •
Orlogsvaerftet F.B.II •
Orta St.Hubert G.1 ===
Ortego === (Leo Ortego, Alexandria, LA) •
Ortego Helicopter ===
OSA === (
Officine Sommese Aeronautica) •
O.S.A. 135 •
O.S.A. 200 ===
OSKBES === (Moscow Aviation institute) •
MAI-223 •
MAI-208 •
MAI-890 •
MAI-920 ===
Osprey === (
George Pereira / Osprey Aircraft) •
Osprey GP-4 •
Osprey GP-5 ===
Ostergaard === (Ostergaard Airplane Works, Chicago, IL) •
Ostergaard 1919 Aeroplane ===
OSU === (Ohio State University, Columbus, OH) •
OSU PG-I ===
Ott === (Delmar Ott, Napa, CA) •
Ott V-2 Special ===
Otto === (Gustav Otto Flugmaschinenfabrik (from 1911) / Aeroplanbau Otto-Alberti (1910)) •
Otto-Alberti Doppeldecker (based on a Farman biplane 1910) •
Otto Renn-Doppeldecker (1912) •
Otto M 1912 (a.k.a. Pusher Biplane) •
Otto B 1914 •
Otto C •
Otto B.I •
Otto C.I 1915 •
Otto C.II •
Otto W.II ===
Otto=== (Otto Aviation Group LLC) •
Otto Celera 500L ===
Oulette === (Albert Oulette, Sanford, ME) •
Oulette 1910 Biplane ===
Overcashier === ((Francis) Overcashier Airplane Co, 3515 Woodward, Detroit, MI) •
Overcashier JN-4 •
Overcashier O-12 •
Overcashier Special ===
Overland === (Overland Airways Inc, Omaha, NE) •
Overland Model L •
Overland Sport 60 ===
OWAM=== (
Oscar Wittenstein Aerodrom Milbertshofen - Dr. Otto Wittenstein) •
OWAM 1911 Eindecker ===
Owens === (
John Sidney Owens, Glenside, PA) •
Owens 1929 Biplane •
Owens 3-B-1 ===
Owj Industrial Complex=== •
Owj Tazarve ===
Owl === (George Owl, Gardena, CA) •
Owl Racer OR-65-2 Pogo and
Yellow peril •
Owl Racer OR-70-1 Fang •
Owl Racer OR-71-1 ''Li'l Quickie'' ===
Ozaki === (Yukiteru Ozaki) •
Ozaki Tractor Biplane •
Ozaki Soga-go ===
Ozone Gliders=== (Le Bar-sur-Loup, France) •
Ozone 6907 •
Ozone Addict •
Ozone Alpina •
Ozone Atom •
Ozone Buzz •
Ozone Cosmic Rider •
Ozone Delta •
Ozone Element •
Ozone Enzo •
Ozone FLX •
Ozone Geo •
Ozone Groundhog •
Ozone Jomo •
Ozone LM4 •
Ozone LM5 •
Ozone LM6 •
Ozone Mac Daddy Bi •
Ozone Magnum •
Ozone Mag2lite •
Ozone Mantra •
Ozone Mojo •
Ozone Octane •
Ozone Peak •
Ozone Proton •
Ozone Rush •
Ozone Swift •
Ozone Swiftmax •
Ozone Trickster •
Ozone Ultralite •
Ozone Vibe •
Ozone Vulcan •
Ozone XXLite •
Ozone Zeno ---- ==References==