Definition
The Curtiss R3C was a United States Navy single‑seat racing biplane built by the Curtiss Aeroplane and Motor Company in the mid‑1920s for competition in the Schneider Trophy air races and for speed‑record attempts.
Overview
Developed in 1925, the R3C was a purpose‑built racing aircraft derived from earlier Curtiss racing and reconnaissance designs. Two main variants were produced:
- R3C‑1 – a land‑plane version with a conventional wheeled undercarriage.
- R3C‑2 – a float‑plane version equipped with twin main floats for water operations.
The R3C‑2, piloted by Lieutenant James H. Doolittle, won the 1925 Schneider Trophy race, achieving a top speed of 232.57 mph (374 km/h). In 1927 the aircraft set a world speed record of 248.5 mph (400 km/h) over a 3‑km course. Only a small number of R3Cs were built; surviving examples are held in museum collections.
Etymology / Origin
The aircraft’s designation follows the United States Navy’s pre‑1946 system: the initial letter “R” denoted a racing aircraft (in later usage “R” signified reconnaissance, but for this period it indicated a racing type); the numeral “3” indicated it was the third Curtiss design in this series, and the final letter “C” identified the manufacturer, Curtiss.
Characteristics
| Feature | Details |
|---|---|
| Airframe | Single‑bay biplane of mixed construction: wooden spars and ribs with fabric covering; equal‑span, slightly staggered wings; fixed tailwheel landing gear (R3C‑1) or twin floats (R3C‑2). |
| Powerplant | Initially a 12‑cylinder Curtiss V‑12 water‑cooled D‑12 engine delivering approximately 400 hp. Later R3C‑2 aircraft were fitted with the more powerful 12‑cylinder Curtiss V‑1570 “Conqueror” engine, rated at 625 hp. |
| Dimensions | Wingspan: ~ 30 ft (9.1 m); Length: ~ 23 ft (7.0 m); Height: ~ 9 ft (2.7 m). |
| Performance | Maximum speed: 232 mph (373 km/h) in 1925 race; 248 mph (400 km/h) in 1927 record attempt. Service ceiling: roughly 30,000 ft (9,100 m). Rate of climb: about 2,500 ft/min (12.7 m/s). |
| Armament | None; the R3C was an unarmed racing aircraft. |
| Operational History | Used by the United States Navy for Schneider Trophy competition (1925) and for subsequent speed‑record flights. Retired from active service by the late 1920s; several airframes preserved in museums. |
Related Topics
- Schneider Trophy – an international competition for seaplanes that spurred advances in high‑speed aircraft design during the 1910s–1930s.
- Curtiss Aeroplane and Motor Company – a major American aircraft manufacturer responsible for many early military and racing aircraft.
- James H. Doolittle – United States Army Air Service (later Army Air Corps) officer who piloted the R3C‑2 to victory in the 1925 Schneider Trophy.
- R‑series Curtiss racers – including the earlier Curtiss CR series and subsequent R‑type racers that contributed to the development of high‑performance aviation.
- United States Navy aircraft designation system (pre‑1946) – the method by which aircraft such as the R3C received their alphanumeric codes.