Engineering:Arrow Coax Livella Uno

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Short description: German helicopter

Livella Uno
General information
TypeHelicopter
National originGermany
ManufacturerArrow Coax Ultra Light Helicopter
Number builtat least one
History
Introduction date2015

The Arrow Coax Livella Uno () is a German helicopter under development by Arrow Coax Ultra Light Helicopter of Hornhausen and introduced at the AERO Friedrichshafen airshow in 2015. The aircraft is intended to be supplied as a kit for amateur construction.[1]

Design and development

The Livella Uno was designed to comply with the US FAR 103 Ultralight Vehicles and the European 120 kg class ultralight aircraft rules. It features a dual coaxial main rotors, with an inverted V-tail, a single open-air pilot's seat without a windshield, tricycle landing gear and a 40 hp (30 kW) Wankel Aixro XH40 engine.[1]

The aircraft fuselage is made from tubing. Its two-bladed rotors have a diameter of 3.8 m (12.5 ft). The aircraft has a typical empty weight of 85 kg (187 lb) and a gross weight of 195 kg (430 lb), giving a useful load of 110 kg (243 lb).[1]

The aircraft mounts a Galaxy Rescue System ballistic parachute in the rotor mast. It also has a small electric motor to power the rotor system from a battery in the event of an engine failure, allowing five minutes of power to land, since the low inertia rotor blades may not support autorotation.[2]

Specifications (Livella Uno)

Data from Tacke[1]

General characteristics

  • Crew: one
  • Empty weight: 85 kg (187 lb)
  • Gross weight: 195 kg (430 lb)
  • Powerplant: 1 × Aixro XH40 liquid-cooled, Wankel aircraft engine, 30 kW (40 hp)
  • Main rotor diameter: 2× 3.8 m (12 ft 6 in)
  • Main rotor area: 23 m2 (250 sq ft)

Performance

  • Maximum speed: 110 km/h (68 mph, 59 kn)
  • Cruise speed: 90 km/h (56 mph, 49 kn)
  • Disk loading: 8.5 kg/m2 (1.7 lb/sq ft)

See also

References

  1. ↑ 1.0 1.1 1.2 1.3 Tacke, Willi; Marino Boric; et al: World Directory of Light Aviation 2015-16, page 204. Flying Pages Europe SARL, 2015. ISSN 1368-485X
  2. ↑ "Arrow Coax UL Helicopter". aerokurier.de. 20 April 2015. https://www.aerokurier.de/general-aviation/hubschrauber/arrow-coax-ul-helicopter/622744. Retrieved 30 November 2017. 



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