Ранцевый вертолет Hoppicopter Strap-On~UK~1945
Добавлено: Пн окт 19, 2020 8:34 pm
Hoppicopter Strap-On
https://en.wikipedia.org/wiki/Hoppi-Copter
Engine: 20hp, rotor diameter: 3.66m, weight fully loaded: 90kg
https://en.wikipedia.org/wiki/Hoppi-Copter
Variants
Pentecost HX-1 Hoppi-Copter (Hoppi-Copter 100) original back-pack version.
Hoppi-Copter 101 equipped with a seat and landing gear, proved that more development was necessary.
Hoppi-Copter 102 framed, with seat for pilot.
Hoppi-Copter 103 as the 102, but lighter with a more powerful engine and slightly greater rotor diameter
Hoppi-Copter 104 as the 103, with even greater rotor diameter
Hoppi-Copter Firefly
Specifications (Hoppi-Copter 102) Data from Jane's All the World's Aircraft 1948[4]
Crew: One
Empty weight: 173 lb (78 kg)
Gross weight: 363 lb (165 kg)
Powerplant: 1 × Unknown 750 cm3 (46 cu in) two stroke flat twin, 35 hp (26 kW) at 4,500 rpm; 9.1:1 reduction gearing to rotors
Main rotor diameter: 2× 16 ft (4.9 m)
Main rotor area: 402 sq ft (37.3 m2) total
Performance
Maximum speed: 96 mph (154 km/h, 83 kn) all performance figures estimated
Endurance: 1 hr at cruising speed
Service ceiling: 12,000 ft (3,700 m) hover
Disk loading: 1.8 lb/sq ft (8.8 kg/m2)