A number of biplanes built by Curtiss were named "Falcon", most under the US Army designation O-1. They first appeared in 1924. Hs123 biplane. ... Curtiss Aeroplane and Motor Company went public in 1916 with Glenn Curtiss as president. ... US Army Seal HHC, US Army Distinctive Unit Insignia The Army is the branch of the United States armed forces which has primary responsibility for land-based military operations. ... 1924 (MCMXXIV) was a leap year starting on Tuesday (link will take you to calendar). ...

The plane was a conventional unequal-span design with wooden wings, while the fuselage was built using aluminium tubing. The tail included a balanced rudder, and the landing gear was fixed, with a rear skid originally, later changed to a tail wheel. In an aircraft, the fuselage is the main body section that holds crew and passengers or cargo. ... General Name, Symbol, Number aluminium, Al, 13 Chemical series poor metals Group, Period, Block 13, 3, p Appearance silvery Atomic mass 26. ... Main and nosewheel undercarriage of a Qatar Airways Airbus A330 The undercarriage or landing gear is equipment which supports an aircraft when it is not flying. ...

It was reasonably successful as an observation plane, and the A-3 attack variant also saw considerable use, reserve units flying them until 1937. 1937 (MCMXXXVII) was a common year starting on Friday (link will take you to calendar). ...

Variants

• A-3 - O-1B converted for use as an attack aircraft, 66 built for the US Army. It was armed with two 7.62-mm (0.30-inch) machine guns and 91-kg (200-lb) of bombs.
• A-3A - Six A-3s were converted into trainers.
• A-3B - O-1E converted for attack use, 78 built
• XA-4 - One A-3 with a Pratt & Whitney R-1340-1 Wasp radial piston engine.
• O-1 - Two-seat observation aircraft, the first production model. One aircraft was converted into the O-1 Special for VIP transport. 10 built
• O-1A - Two-seat observation aircraft, powered by the Liberty piston engine. 1 built.
• O-1B - This was the first major production version for the US Army. 45 built.
• O-1C - Four O-1Bs converted into VIP transports.
• O-1E - This version was powered by the 324-kW (435-hp) Curtiss V-1150E piston engine. 41 built.
• O-1F - One O-1E converted into VIP transport.
• O-1G - This was the final O-1 version. 30 built
• XO-11 - Two aircraft were converted into X0-11 prototypes.
• O-11 - This version was powered by the Liberty piston engine. 66 built.
• XO-12 - One of the XO-11 protoypes was redesignated X0-12.
• XO-13 - One O-1 was fitted with a Curtiss Conqueror engine, and took part in the 1927 National Air Race.
• XO-13A - The XO-13A was another aircraft which was converted into a racing machine.
• O-13B - One O-1C was fitted with a Conqueror engine, and tested as an observation aircraft.
• YO-13C - Three O-1Es were re-engined with a Conqueror engine.
• YO-13D - One O-11 was fitted with supercharged Conqueror engine.
• XO-16 - One O-11 was fitted with a Conqueror engine.
• XO-18 - One O-1B used to test the Chieftain engine.
• Y1O-26 - One O-1E fitted with a Conqueror engine, and the Prestone cooling system.
• O-39 - This was the O-1G airframe fitted with a Conqueror engine, 10 built.
• Civil Falcon - 20 civil versions were built.
  • Conqueror Mailplane
  • D-12 Mailplane
  • Lindbergh Special - It was sold to Charles Lindbergh.
  • Liberty Mailplane - Single-seat mailplane, powered by a Liberty piston engine. 14 were sold to National Air Transport.
• XF8C-1 - This version was developed from the US Army's X0-12 aircraft. Two were built for the US Navy.
• F8C-1 - Four were built for the US Marine Corps, they were used as light bombers, fighters and observation aircraft. The F8C-1 powered by the 313-kW (420-hp) Pratt & Whitney R-1340 Wasp radial piston engine. It was later redesignated OC-1.
• F8C-3 - 21 were built for the US Navy. It was powered by the P313-kW (420-hp) Pratt & Whitney R-1340 Wasp radiual piston engine. It was later redesignated OC-2.
• XOC-3 - One XF8C-1 prototype was fitted with a Chieftain engine.
• Export Falcon - Twin-float version of O-1B sold to Colombia, 16 built.
• South American D-12 Falcon - 10 Model 35F were sold to Peru.
• Colombia Cyclone Falcon - Model 37F fitted with the 531-kW (712-hp) Wright Cyclone radial piston engine. 100 were built and sold to Colombia.
• Chilean Falcon - O-1E design built under license in Chile, ten were later sold to Brazil.
• XBT-4 - One O-1E aircraft was converted into a basic trainer for the US Army.

A ground attack aircraft is an aircraft that is designed to operate very close to the ground, supporting infantry and tanks directly in battle. ... The Pratt & Whitney R-1340 Wasp was an engine widely used in American aircraft starting in the 1920s. ... A mailplane is an aircraft used for carrying mail. ... Charles Lindbergh Charles Augustus Lindbergh (February 4, 1902 – August 26, 1974) was a pioneering United States aviator famous for piloting the first solo non-stop flight across the Atlantic Ocean in 1927. ... United States Marine Corps Emblem The United States Marine Corps (USMC) is the second smallest of the five branches of the United States armed forces, with 170,000 active and 40,000 reserve Marines as of 2002. ... Wright Cyclone was the name given to a family of air-cooled radial piston engines designed by Curtiss-Wright, and used in numerous American aircraft in the 1930s and 1940s. ...

Related content

Designation sequence:

• A-2 - A-3 - A-4 - A-5 - A-6 - XA-7 - A-8 - A-9

Similar aircraft: This article needs to be cleaned up to conform to a higher standard of quality. ... A number of biplanes built by Curtiss were named Falcon, most under the US Army designation O-1. ... The A-4 was an A-3 modified as a testbed for the R-1340-1 radial engine. ... The A-5 was a proposed version of the A-3 with a Curtiss Conqueror engine. ... The A-6 was a proposed version of the A-3 with a Curtiss H-1640-1 Chieftain engine. ... The General Aviation / Fokker XA-7 was a prototype attack aircraft built in 1930-1931 by Fokker and then General Aviation Corporation after it bought Fokker-America in 1930, and entered in a competition by the United States Army. ... The Curtiss XA-8 was designed in response to an Army Air Corps requirement for an attack aircraft to replace the A-3 Falcon. ... The Lockheed-Detroit YP-24 was a prototype fighter aircraft of 1931, based on the successful Lockheed Altair. ...

Related lists:

• List of military aircraft of the United States

  This list of military aircraft of the United States includes prototype, pre-production and operational types. ...