- Source: Driggs Dart
The Driggs Dart was an American-built light sporting aircraft of the late 1920s.
Development
Ivan Driggs designed the Dart I single-seat high-wing monoplane in 1926. In 1927 he developed the design into the two-seat Dart II, which was a sesquiplane - a biplane whose lower wing area is less than 50% of the area of the upper wing.
Operational history
Three examples of the Dart I monoplane were constructed and the type won the 1926 Ford Air Tour category for light planes. One was tested by the U.S. Army Air Corps as an observation aircraft, but no orders were received.
The Dart II sesquiplane followed in 1927, at least four examples being built by Driggs and some further planes by amateur constructors from plans during the early 1930s. A Dart II is maintained in airworthy condition by the Historic Aircraft Restoration Museum at Dauster Field Creve Coeur, Missouri near St Louis.
Variants
Dart I
Single-seat parasol monoplane powered by a 35 hp (26 kW) Anzani 3 air-cooled radial engine.
Dart II
Two-seat sesquiplane powered by a 35 hp (26 kW) Anzani 3 or Salmson AD.9 air-cooled radial piston engine.
Specifications (Dart II Anzani engine)
Data from Jane's all the World's Aircraft 1928General characteristics
Crew: 2
Upper wingspan: 28 ft 0 in (8.53 m)
Lower wingspan: 22 ft 0 in (6.7 m)
Height: 6 ft 6 in (1.98 m)
Wing area: 140 sq ft (13 m2)
Empty weight: 450 lb (204 kg)
Gross weight: 820 lb (372 kg)
Powerplant: 1 × Anzani 3 -cylinder air-cooled radial piston engine, 35 hp (26 kW)
Propellers: 2-bladed fixed pitch propeller
Performance
Maximum speed: 85 mph (137 km/h, 74 kn)
Cruise speed: 80 mph (130 km/h, 70 kn)
Landing speed: 30 mph (26 kn; 48 km/h)
Range: 250 mi (400 km, 220 nmi)
Service ceiling: 18,000 ft (5,500 m)
Rate of climb: 550 ft/min (2.8 m/s)
Wing loading: 5.8 lb/sq ft (28 kg/m2)
Power/mass: 0.0526 hp/lb (0.0865 kW/kg)
References
External links
Aerofiles.com