The aircraft is meant to develop and mature rotor blown wing design, which can now be applied to larger aircraft for unmanned aerial logistics and even tactical ISR missions. Sikorsky announced it ...

Ludwig van Beethoven was a German composer and pianist. He wrote nine symphonies. A symphony is a long piece for orchestra usually split into four sections known as movements. His Symphony No. 5 ...

It’s impossible for a helicopter to fly without two rotors, o actually, it’s impossible for a helicopter to fly well without two rotors. The configurations of those two rotors can change, however.