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A coaxial-rotor aircraft is an aircraft whose rotors are mounted one above the other on concentric shafts, with the same axis of rotation, but turning in opposite directions (contra-rotating). This rotor configuration is a feature of helicopters produced by the Russian Kamov helicopter design bureau .
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Having a coaxial rotor with blades of polymer results in low inertia both relative to vertical and lateral axes, at 50%–75% as compared to a single rotor helicopter with tail rotor. No tail rotor also means it can perform flat turns at all speeds. A maximum vertical load of 3.5 g combined with low inertia makes the Ka-50 highly agile.
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.
Coaxial rotor helicopters (52 P) M. Monocopters (2 P) Multirotor helicopters (1 C, 11 P) Q. Quadrotors (1 C, 15 P) S. Single-rotor helicopters (163 P) Synchropters (9 ...
Skipping a single pill doesn’t necessarily mean you’ll experience brain zaps. But, technically, if you miss your antidepressant for more than a day, you’d be at risk of side effects, Dr ...
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