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The AH-64 Apache has a four-blade main rotor and a four-blade tail rotor. [41] The crew sits in tandem, with the pilot sitting behind and above the co-pilot/gunner. [42] Both crew members are capable of flying the aircraft and performing methods of weapon engagements independently. [43]
The tail rotor system rotates airfoils, small wings called blades, that vary in pitch in order to vary the amount of thrust they produce.The blades most often utilize a composite material construction, such as a core made of aluminum honeycomb or plasticized paper honeycomb, covered in a skin made of aluminum or carbon fiber composite.
Applying the pedal in a given direction changes the tail rotor blade pitch, increasing or reducing tail rotor thrust and making the nose yaw in the direction of the applied pedal [5] Later designs known as 'NOTAR' use an air stream to provide anti-torque control instead of a tail rotor. This air stream is generated in the fuselage by a small ...
The tail rotor is a smaller rotor mounted so that it rotates vertically or near-vertically at the end of the tail of a traditional single-rotor helicopter. The tail rotor's position and distance from the center of gravity allow it to develop thrust in a direction opposite that of the main rotor's rotation, thereby countering the torque effect ...
However, it differs from a conventional open tail rotor by being integrally housed within the tail boom. While conventional tail rotors typically have between two and six blades, Fenestrons have between seven and eighteen blades; these may have variable angular spacing so that the noise is distributed over different frequencies. [6]
ITT Exelis awarded $15 million contract for composite tail rotor blade assemblies on Sikorsky's S-76D™ helicopter SALT LAKE CITY--(BUSINESS WIRE)-- ITT Exelis (NYS: XLS) has been awarded a ...
Reliability had been questioned by US Apache operations, the entire fleet in the Balkans had been grounded due to serious tail rotor failures in 1999. [9] [10] In 1998, the AN/APG-78 Longbow radar's development ran into problems regarding its weight, impact upon overall agility, and data transfer abilities. [11]
Linkages (silver) to the rotor blade In aeronautics , a swashplate is a mechanical device that translates input via the helicopter flight controls into motion of the main rotor blades . Because the main rotor blades are spinning, the swashplate is used to transmit three of the pilot's commands from the non-rotating fuselage to the rotating ...
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