It is an American helicopter manufacturing company and also manufactures military aircraftSikorsky · AircraftOf the new type helicopter "S-97 RAIDER" which the company has been developingConcept ...
Unique counter-rotating design to help mitigate technical risk of integrating engines on to airlifter Airbus Military has chosen a unique "handed" propeller concept for the A400M airlifter in a bid to ...
High-concept MAV takes off with fixed wings and counter-rotating propellers, allowing it to operate with high aerodynamic efficiency--even in adverse conditions, according to its creator. The military ...
A British engineer has adapted a steel frame into a flying machine capable of levitating 20 metres off the ground. Nicknamed Swarm Man, the device uses 54 counter-rotation propellers to give flight to ...
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