- Manzolini Libellula
Libellula Role Light experimental helicopter Manufacturer Manzolini Designer Ettore Manzolini First flight 1952 Number built 3
The Manzolini Libellula was a 1950s Italian co-axial twin-rotor helicopter designed by Ettore Manzolini. "Libellula" is the Italian word for "Dragonfly".
Design and development
Etorre Manzolini established a company in Rome, Italy to develop a helicopter he had designed. The design was the Manzolini Libellula an unusual co-axial helicopter. The co-axial arrangement eliminating the need for an anti-torque rotor allowed the helicopter to have a twin fin arrangement. The Libellula (Registered I-MANZ) first flew on 7 January 1952. An improved version was the single-seat Libellula II which went on to gain Italian certification on 15 October 1962. A three-seater version (the Libellula III) was built and a four-seat Libellula IV was planned but Manzolini stopped development in the late 1960s.
- Prototype, one built.
- Libellula II
- Prototype single-seat version powered by a 75kW (101hp) Walter Minor 4-III engine, one built.
- Libellula III
- Prototype two-seat version powered by a 104kW (140hp) Walter M 332 engine, one built but not flown.
- Libellula IV
- Proposed four-seat version powered by a 236kW (317shp) Allison 250-CT18 turboshaft, not built.
Specifications (Libellula II)
- Crew: One
- Powerplant: 1 × Walter Minor 4-III piston engine, 75 kW (101 hp) each
- The Illustrated Encyclopedia of Aircraft (Part Work 1982-1985). Orbis Publishing.
- Manzolini Libellula at aviastar.org
- Helicopters built in Italy
Lists relating to aviation General Military Accidents/incidents Records
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