Dragon Fly 333

333
Role	Utility helicopter
National origin	Italy
Manufacturer	Dragon Fly srl
Designer	Angelo and Alfredo Castiglioni

The Dragon Fly 333 is an ultralight utility helicopter developed by archaeologists and filmmakers Angelo and Alfredo Castiglioni in the 1980s. French UAV manufacturer CAC Systèmes created a drone version named the Héliot for use in reconnaissance and as an aerial target, but the aircraft did not enter production.

DF Helicopters was acquired in 2010 by a Swiss Group, Avio International Group.

Variants

• Dragon Fly 333 - initial version
• Dragon Fly 333 AC - RAI-VLR certified version
• CAC Systèmes Héliot - drone version

Specifications (333)

Data from Jane's All the World's Aircraft 1999--.00

General characteristics

• Crew: One pilot
• Capacity: One passenger
• Length: 7.86 m (25 ft 10 in)
• Main rotor diameter: 6.70 m (22 ft 0 in)
• Height: 2.36 m (7 ft 9 in)
• Wing area: 35.2 m² (379 ft²)
• Main rotor area: 36.5 m² (393 ft²)
• Empty weight: 260 kg (573 lb)
• Gross weight: 500 kg (1,100 lb)
• Powerplant: 1 × Hirth F30A26AK, 82 kW (110 hp)

Performance

• Maximum speed: 135 km/h (83 mph)
• Cruising speed: 130 km/h (70 mph)
• Range: 310 km (190 miles)
• Service ceiling: 3,100 m (10,000 ft)
• Rate of climb: 6.5 m/s (1,280 ft/min)

References

• 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. pp. 216. 
• Aviazione Sportiva (108). March 2008. 

External links

• Manufacturer's website
• All The World's Rotorcraft