The Brown B-3 was a 1930s American single-seat touring monoplane and air racer built by the Lawrence Brown Aircraft Company. Only one aircraft was built.

The B-3 was based on earlier B-2 Miss Los Angeles single-seat racing monoplane.^[1] For the day, some advanced features were included such as Handley Page leading edge slots and single-slotted ailerons and flaps on the wing trailing edge.^[1] The B-3 was powered by a 290-horsepower (219 kW) Menasco C6S-4 Super Buccaneer inline piston engine. A proposed two seat-variant, the Brown B-3 Super Sport had two seats in tandem under an enclosed cockpit. No orders were received, and the project died.

Intended as a long-distance racer as well as a touring aircraft, only one Brown B-3 (NX266Y) was built and sold to Dr. Ross Sutherland from Los Angeles. On October 10, 1943, the aircraft was destroyed in a hangar fire at Van Nuys Airport, then known as the Metropolitan Airport.

The Brown B-3 is featured in Flight for Freedom (1943) as the racing aircraft flown by the lead character. ^[2] The B-3 is featured as a prototype fighter aircraft in Flight Lieutenant (1942) and crashes out of shot in the final scene. The B-3 can also be seen sitting on the ramp during the scene of Humphrey Bogart's famous goodbye in the film Casablanca (1942).^[1]

Data from ^[1]

General characteristics

• Crew: 1
• Capacity: 1
• Length: 25 ft 11 in (7.89 m)
• Wingspan: 31 ft 11 in (9.72 m)
• Height: 8 ft 0 in (2.44 m)
• Wing area: 150.0 sq ft (13.94 m²)
• Empty weight: 1,850 lb (839 kg)
• Max takeoff weight: 2,650 lb (1,202 kg)
• Powerplant: 1 × Menasco C6S-4 Super Buccaneer inline piston engine, 290 hp (220 kW)
• Propellers: 2-bladed Hamilton Standard

Performance

• Maximum speed: 205 mph (330 km/h, 178 kn)
• Cruise speed: 190 mph (310 km/h, 170 kn)
• Range: 600 mi (966 km, 522 nmi)
• Service ceiling: 18,000 ft (5,486 m)
• Rate of climb: 1,200 ft/min (6.1 m/s) ^[3]