Zefhir Ultra-light

Features

Performance

*Maximum takeoff weight: 600 kg (1,322 lbs)
*Best Endurance (+10 min reserve) in 150 ltr tank configuration: 2h 21min @78 km/h (42 kts), Range 182 km (98nm)
*Cruise speed: 161 km/h (87 kts)
*Maximum range (+10 min reserve) in 150 ltr tank configuration: 318 km (172 nm) @185 km/h (100 kts), Endurance 1h 43 min
*Maximum level speed: 185 km/h (100 kts)
*Maximum range (+10 min reserve) in 287 ltr tank configuration: 638 km (344 nm) @185 km/h (100 kts)
*Never exceed speed VNE (sea level): 189 km/h (102 kts)
*Hovering ceiling OGE (600 kg): 4,000 m (13,100 ft)

Parachute

*Minimum deployment altitude: 150 m (450 ft)

Transmission

*Primary transmission: Direct
*Tail gearbox: Bevel spiral gear with a multiplication ratio of 19/15
*Main gearbox: Bevel spiral gear with a reduction ratio of 12/49

Features

*Seating: 2 crashworthy seats (according to CS-27)
*Standard fuel capacity: 150 ltr / (40 Usgal)
*Cabin width: 1.34 m (4,4 ft)
*Maximum auxiliary fuel capacity: 137 ltr / (36 Usgal)
*Maximum luggage capacity: 320 dm3 / (11.3 ft3)
*Approved fuel type: JET A, JET A-1, JET B, according to DERD 2494. TS-1, T2, RT according to GOST 10227

Main Rotor

*Type: Teetering
*Chord: 195 mm (7.7 in)
*Number of blades: 2
*Speed: 528 pm
*Diameter: 7.6 m (24.9 ft)

Tail Rotor

*Type: Teetering
*Chord: 195 mm (7.7 in)
*Number of blades: 2
*Speed: 528 pm
*Diameter: 7.6 m (24.9 ft)

Engine

The innovative and light weight turboshaft engine, offering up to 250 hp output, was provided in collaboration with PBS Velkà Bíteš, one of the most experienced companies in the field of engines. The turbine is an innovation in its sector, allowing for minimal fuel consumption, easy maintenance and low weights with high power. It is designed to optimize space, and offer a compact and light drive system. This new engine interfacing is registered to the Italian Trademark Office (UIBM) as a utility model, and an innovative drive system.

*Engine type: PBS TS100 TURBOSHAFT ENGINE (gas generator turbine & power turbine)
*Output speed: 2,158 rpm
*Maximum continuous power: 105 kW (141 shp)