Get in touch with Chloe Mayer by emailing [email protected] A giant helicopter prop hanging from the ceiling above a water park crashed down into the children's pool below, wounding four people.

used those two counterrotating top rotors and a single rear propeller to overcome the speed limitations traditional helicopters face. U.S. military helicopter development has had to endure the ...

Regardless, the three German engineers behind the baffling creation plowed ahead with their dream of making an electric helicopter. Last week it paid off. There wasn’t a bouncy ball in sight as ...

It closed last Sunday after a prop helicopter fell from the ceiling and into the pool. State investigators said a rope holding the helicopter was damaged, which caused it to fall. The four who ...

Its DelftAcopter drone doubles as both a fixed-wing aircraft and a helicopter using only one propeller -- its tailless biplane design lets it take off and hover vertically, but gracefully turn ...

Sikorsky's exotic S-97 coaxial rotor and pusher-prop scout and light attack helicopter took to the air for the first time Friday. Although the marketability of the S-97, a descendant of the X-2 ...

The $71 million machine has the capabilities of both a helicopter and a prop plane. Produced by Eames Yates Follow BI Video: On Facebook More from Military & Defense The V-22 Osprey is one of the ...

Regardless, the three German engineers behind the baffling creation plowed ahead with their dream of making an electric helicopter. Last week it paid off. There wasn’t a bouncy ball in sight as ...