rotor hub


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rotor head

rotor head
i. That part of the rotor hub to which the rotor blades are attached. Sometimes called a spider. The same as a rotor hub.
ii. When used as slang, it means a helicopter pilot.
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References in periodicals archive ?
The work has been carried out primarily in CD-Adapco's unstructured Navier Stokes solver, STAR-CCM+, to the blind prediction of hub drag on two production rotor hub geometries, the S-92A hub and the UH-60A hub.
Numerical lift
"This condition, if not detected and corrected, could lead to further crack propagation, possibly resulting in main rotor hub failure and consequent loss of the helicopter," Easa warned in a directive issued on March 15.
Checks are ordered on air ambulance choppers
A steady course and no speed changes helped to minimize rocking of the ship and oscillation of the suspended rotor hub. We also had two line tenders stabilizing the rotor head.
Rotor head heroes
The two-bladed rotor, although in better shape dynamically than a single-bladed rotor, must accept very high cyclic loading if a rigid rotor hub system is employed or provide a so called teeter bearing to allow the rotor blade to rock (as a pair) to alleviate blade, drive train and tower head loading.
Advances in wind energy technology
50 hours is required to remove the 550 lbs of metal from the 55" dia titanium rotor hub. Stock removal of up to 3/4" with milling tolerances ranging from .002" to .010".
775-lb forging machined to 225 lbs entirely by NC bridge-type profiler
The Transportation Safety Board of Canada determined rather quickly that the main rotor hub and rotor blades had departed the aircraft in flight.
Safety oversights: seemingly insignificant items can have major consequences when we miss them. Meeting expectations for a smooth flight can require extra effort
The largest castings, such as the rotor hub, machine frame and baseplate, serve as the support system for the wind turbine's long, tall tower, gigantic rotor blades and machinery and gears.
Wind's cast crop: after a record breaking year of new wind energy capacity in the U.S., manufacturers are clamoring for more metal castings
Though NAVAIR said in January that much solid engineering work had been done on the EH101/US101 tail rotor, Canadian news reports in May said CH-149/EH101 maintenance officers still could not explain the rapid failure of tail rotor hub halves.
Disputed facts on presidential helicopter
After the parties left the site, the Marine maintenance control chief moved a CH-53 helicopter into the hangar for removal of the tail rotor hub assembly.
Negligence contract performance
The part also includes a rotor hub with pockets and swept surfaces.
CAD/CAM takes model from art to part
A novel design, which for the first time transferred the elastic element to the interior of the rotor hub itself, took to the air in March 1971.
The rotary-wing aircraft and modern materials
"The contract exempts the rotor hub assembly from Bell responsibility.' In fact, the overhaul contract doesn't deal with the system's design.
How the courts protect contractors whose weapons kill G.I.s; Bell Helicopter's lawyers are indemnifying the defense industry

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