Curtiss Falcon
1925 multi-role combat aircraft family by Curtiss

The Curtiss Falcon was a family of military biplane aircraft built by the American aircraft manufacturer Curtiss Aeroplane and Motor Company during the 1920s. Most saw service as part of the United States Army Air Corps as observation aircraft with the designations O-1 and O-11, or as the attack aircraft designated the A-3 Falcon.
U.S. Navy variants were used initially as fighter-bombers with the designation F8C Falcon, then as the first U.S. Marine Corps dive bombers with the name Helldiver. Two later generations of Curtiss dive-bombers were also named Helldiver.
The type was introduced in 1925 and saw first-line service in the United States until 1934. Curtiss Falcons fought in the Constitutionalist Revolution of 1932 in Brazil, used by the forces of São Paulo.
Design and development
The Falcon XO-1 prototype was evaluated by the USAAC along with eleven other prototypes in 1924 and the Douglas XO-2 was declared the winner of that competition. So Curtiss re-engined the prototype with the Packard 1A-1500 for the 1925 trials, which it won. The engine failed to live up to expectations and the O-1 ordered by the Army was fitted with the 435 hp (324 kW) Curtiss V-1150 (D-12) engine.
The aircraft was a conventional unequal-span biplane design with wooden wings, while the fuselage was built using aluminum tubing with steel tie rod bracing.
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This entry incorporates text from “Curtiss Falcon” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.