DF334

DF334 during flight test
Role	Utility helicopter Type of aircraft
National origin	Italy
Manufacturer	Dragon Fly Helicopters
Designer	Angelo and Alfredo Castiglioni
First flight	1989

The DF Helicopters DF334 is a two-seat, single-engine light utility helicopter in development by Dragon Fly Helicopters^[1] in Northern Italy. The DF 334 is a development of the Dragon Fly 333, developed by archaeologists and filmmakers Angelo and Alfredo Castiglioni in the 1980s. The DF334 has a larger, full composite cabin, a Rotax 914 4-stroke turbocharged engine, a governor fuel control, and an advanced Electronic Flight Instrument System. The helicopter is intended for both amateur and professional pilots.

DF Helicopters was acquired in 2010 by the Swiss Avio International Group.^[2]

Specifications

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General characteristics

Crew: One pilot
Capacity: One passenger
Length: 5.86 m (19 ft 3 in)
Height: 2.36 m (7 ft 9 in)
Empty weight: 290 kg (640 lb)
Gross weight: 500 kg (1,100 lb)
Powerplant: 1 × Rotax 914 , 84 kW (113 hp)
Main rotor diameter: 6.82 m (22 ft 5 in)
Main rotor area: 36.5 m² (393 sq ft)

Performance

Maximum speed: 148 km/h (92 mph, 80 kn)
Cruise speed: 120 km/h (75 mph, 65 kn)
Range: 300 km (190 mi, 160 nmi)
Service ceiling: 3,100 m (10,200 ft)
Rate of climb: 6.5 m/s (1,280 ft/min)

References

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^ "Dragon Fly Helicopters". Aviointernational.com. Archived from the original on 14 August 2020. Retrieved 27 September 2018.
^ "Avio International Group Holding S.A". Aviointernational.com. Archived from the original on 14 August 2020. Retrieved 7 September 2013.

Jane's All the World's Aircraft 2004–05. London: Jane's Information Group.
Simpson, R. W. (1998). Airlife's Helicopters and Rotorcraft. Ramsbury: Airlife Publishing. p. 216.
"DF Helicopters DF334". Aviazione Sportiva (108). March 2008.