Engineering:Aero HC-2 Heli Baby
| Aero HC-2 Heli Baby | |
|---|---|
| |
| HC-2 in flight | |
| Role | Light helicopter |
| National origin | Czechoslovakia |
| Manufacturer | Aero Vodochody |
| Designer | Jaroslav Šlechta |
| First flight | December 3, 1954 |
| Introduction | 1955 |
| Produced | 1958-1962[1] |
| Number built | 23 (including 2 prototypes) |
The Aero HC-2 Heli Baby is a two-seat general-purpose light utility helicopter, designed by engineer Jaroslav Šlechta, and produced by the Czechoslovak company Aero Vodochody in the 1950s. It has a three-blade main rotor, and a two-blade tail rotor. The helicopter has an entirely metal frame and cockpit, and windows made of Plexiglas. It was the first and the only Czechoslovak-designed helicopter to be produced.[2]
Design and development
The helicopter was designed by engineer Jaroslav Šlechta.[3] Construction of the prototype began in 1951, and testing commenced in 1954. The first flight occurred on December 3, 1954, and the helicopter was introduced to the public in 1955 at the Brno Industries Fair.[4] Production was slated to begin in 1957, however, engine problems delayed it. The initial run produced 200 of these helicopters.[5] The Czechoslovak Air Force was a user of the HC-2, as was the Czechoslovak People's Army. The Heli Baby is capable of carrying a pilot and 220 pounds of cargo at the speed of 62 mph, while using 4.85 gallons of fuel.[6] In 1959, it was one of the world's lightest two-seated helicopters.[7] Initially powered by an 83 hp (62 kW) Praga DH engine, the more powerful 105 hp (78 kW) Avia M 110H engine, designed specifically for use in helicopters, replaced it after approximately six years.[8][9] The Heli Baby can be used for transport, training, and various "other duties in military and civil service".[10] Cargo space is situated behind the helicopter's two seats. The non-retractable undercarriage has three wheels in a tricycle configuration.
Operators
Czechoslovakia
Specifications
General characteristics
- Crew: 1
- Capacity: 1 passenger or 220 lbs. payload
- Length: 10.5 m (34 ft 5 in)
- Height: 2.3 m (7 ft 7 in)
- Empty weight: 370 kg (816 lb)
- Gross weight: 585 kg (1,290 lb)
- Max takeoff weight: 580 kg (1,279 lb)
- Powerplant: 1 × Praga DH four-cylinder, air-cooled, horizontally-opposed, 62 kW (83 hp)
- or 1x Avia M 110H 4-cylinder air-cooled piston engine rated at 78.3 kW (105 hp)
- Main rotor diameter: 3× 8.8 m (28 ft 10 in)
- Main rotor area: 60.83 m2 (654.8 sq ft)
Performance
- Maximum speed: 126 km/h (78 mph, 68 kn)
- Cruise speed: 100 km/h (62 mph, 54 kn)
- Range: 150 km (93 mi, 81 nmi)
- Service ceiling: 3,030 m (9,940 ft)
References
- Notes
- ↑ "Vrtulník HC 2 (VR-2) Heli Baby" (in cs). http://www.ntm.cz/heslar/heli-baby.
- ↑ Taylor, John William Ransom (1968). Helicopters and VTOL aircraft. Doubleday.
- ↑ Lambermont, Paul Marcel; Anthony Pirie (1970). Helicopters and autogyros of the world. Barnes. p. 35.
- ↑ International Aeronautic Federation (1959). Interavia. 14. Interavia. p. 64.
- ↑ Jane, Frederick Thomas; Charles Grey Grey; Leonard Bridgman; Leonard Howard-Flanders (1959). Jane's all the world's aircraft 1959-1960. S. Low Marston & company. p. 112.
- ↑ United Service and Royal Aero Club (Great Britain) and Royal Aero Club of the United Kingdom (1960). Flight International. 77. IPC Transport Press Ltd.. p. 714.
- ↑ United Service and Royal Aero Club (Great Britain) and Royal Aero Club of the United Kingdom (1959). Flight International. 75. IPC Transport Press Ltd.. p. 683.
- ↑ Jane, Frederick Thomas (1966). Jane's all the world's aircraft. S. Low Marston & company. p. 478.
- ↑ United Service and Royal Aero Club (Great Britain) and Royal Aero Club of the United Kingdom (1962). Flight International. 81. IPC Transport Press Ltd.. p. 894.
- ↑ Underwood, John W., ed (1961). "none". World Aircraft Illustrated (Aero Publishers) 1.
- Bibliography
- Beneš, Ladislav. (In Czech) Československé vrtulníky známé i neznámé. Votobia, 1998. ISBN:978-80-7198-326-2.
 |  |
