VLR  DF-334

Very Light Rotorcraft  DF-334

Main rotor [Diameter]: 6.70 m

Disc Loading – GW: 13.15 kg/m²

Tail rotor [Diameter]: 1.12 m

Cabin width: 1.30 m

Total length: 6.00 m

Height [cabin roof above ground]: 1,72 m

Height [main rotor above ground]: 2.36 m

Main rotor [100%]: 520 RPM

Fuel tank capacity: 60 liters

Gross weight: 600 Kg

Empy weight: 285 Kg

Useful loading: 315 Kg

Cruise speed @ SL [70% Power]: 78 Kts - 145 Km/h

Max speed @ SL [Vne]: 96 Kts - 177 Km/h

Climbing rate: 6.50 m/s

Hover Ceiling IGE: 4.100 m

Hover Ceiling OGE 2.450 m

Endurance @ Cruise Speed: 2.7 h

Fuel consumption [70% Power]: ~ 23 liter/h

Max. Range [20’ reserve]: 400 Km

Height speed IAS – 50 ft: 28 Kts – 51,5 Km/h

Auto rotation IAS/min. ROD: 27 Kts – 50 Km/h

 

Engine

RAP 98-90 I FOUR: 4 cyl, 4- stroke, 2.715 cc

Cylinder bore: 98 mm.

Stroke: 90 mm.

Compression ratio: 11 : 1

Max single engine power: 120 HP (3.250 RPM)

Cooling system: mixed oil-air (patented)

Starter: Electric

Fuel: 95 octane