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The song is approximately one minute, 46 seconds in length, beginning with 24 seconds of a helicopter sound effect, followed by the schoolmaster shouting, "You! Yes, you! Stand still, laddie!" performed by Roger Waters. Waters's lead vocal is treated with a reverse echo. The song features an electric guitar with an added delay effect and an ...
Abrasion strips on helicopter rotor blades are made of metal, often titanium or nickel, which are very hard, but less hard than sand. When a helicopter flies low to the ground in desert environments, sand striking the rotor blade can cause erosion. At night, sand hitting the metal abrasion strip causes a visible corona or halo around the rotor ...
The Sioux is a single-engine single-rotor three-seat observation and basic training helicopter. In 1953 the Bell 47G design was introduced. It can be recognized by the full "soap bubble" canopy (as its designer Arthur M. Young termed it), [7] exposed welded-tube tail boom, saddle fuel tanks and skid landing gear.
Helicopter noise reduction is a topic of research into designing helicopters which can be operated more quietly, reducing the public-relations problems with night-flying or expanding an airport. In addition, it is useful for military applications in which stealth is required : long-range propagation of helicopter noise can alert an enemy to an ...
Advantages over the JetRanger included a cheaper purchase cost and the inclusion of a stability augmentation system. The FH-1100 also had a greater hover ceiling than most contemporary helicopters of its size. [15] Various considerations for ease of maintenance were also incorporated into various aspects of the rotorcraft, such as engine access ...
The restricted airspace was set in place because President Joe Biden is in Delaware over the weekend. The fighter aircraft and helicopter responded to a civilian aircraft at 2:25 p.m. Saturday and ...
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Electric Trex 250 micro heli flying inverted Electric-powered Venom Air Corps Ocean Rescue Electric-powered Align T-rex 450SE Electric-powered E-flite Blade 400 3D Electric-powered Syma S107 This Heli-Max Axe Micro CX model helicopter is an example of a micro-sized coaxial model. Note the size comparison with the cellular telephone at right.