It had an enclosed central rotor, powered by atomic turbines, with reversible-pitch blades for air lift or undersea diving.
"Tom Swift and the Electronic Hydrolung" by Victor Appleton
One of its rotor blades was crumpled.
"Project Mastodon" by Clifford Donald Simak
Between the rows of the blading upon the rotor extend similar rows of stationary blades attached to the casing or stator.
"Steam Turbines" by Hubert E. Collins
Now its rotor blades were clawing the air, askew, while it circled downward like a wounded bird.
"The Samurai Strategy" by Thomas Hoover
There are rings of blades round the rotor, tightly fixed to its surface.
"The Romance of War Inventions" by Thomas W. Corbin
CHP officer hit by helicopter rotor blades.
Scott's-Bell 47 (Booth No 5309) will launch a Model 47 upgrade program here at Heli-Expo and is also developing composite replacement main rotor blades with IAC Ltd.
Active Rotor Blades Provide Research Opportunity for Global Partnership.
The rotor blades of a helicopter landing on rugged, remote terrain struck a California Highway Patrol officer and severely injured him as he helped rescue an injured hiker, official said Monday.
Injured doctor helps save CHP officer hit in the head by helicopter rotor blade.
The California Highway Patrol is hailing an Air Force doctor as a hero after he helped save a CHP officer who suffered a serious head injury when he was hit by a helicopter rotor blade while rescuing the doctor.
A wind energy project in north-central North Dakota resumed generating power, one week after the rotor and three giant blades on one of its towers came crashing to the ground.
Cobham Wins Rotor Blade Components Contract.
Manufacturing flaw LED to rotor blade crack.
R22 AD requires rotor-blade check.
Facility, as well as the beginning of series production of its NR58.5 rotor blade in Germany.
Nordex also notes that it is planning to start production of the NR58.5 rotor blade in North America in 2013.
The noisy whomp, whomp, whomp of rotor blades cutting through the air Saturday at Front Royal-Warren County Airport marked the dramatic descent of an Air Force helicopter before a small group of firefighters and home school students.
The hovering drones would not fly as efficiently as helicopters because of their shorter rotor blades, but their enclosed rotors have the advantage of a much smaller size and safety near humans.
IAC Inks Agreement With Scott's-Bell 47 for Composite Main Rotor Blades.