Savback Helicopters

Zefhir

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Innovation in technology and safety.

We are in partnership with the Italian manufacturer CURTI Industries for the promotion and sale of the Zefhir helicopter.

Zefhir raises the bar in safety and performance for light private helicopters. The innovative and disruptive ballistic parachute, as well as the overall attention to safety in the design, manufacturing and validation processes, are the key elements of this helicopter.

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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
120 mm (4.7 in)
Number of blades
2

Speed
3,062 rpm
Diameter
1.2 m (3.9 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.