Rotorcraft research paper

John has over 30 years’ experience in the design, analysis, verification, and operation of complex integrated hardware and software systems. As a Technical Fellow in Systems Engineering of The Boeing Company, John is sought for consulting and execution of critical engineering challenges across multiple business units. John's experience includes manned spacecraft, communication and remote sensing satellites, commercial aircraft flight controls and systems integration, and mobile satellite communication networks. He has worked at the level of detailed HW/SW integration in high integrity aviation electronics, through to the level of systems required for globally mobile mission critical communication services. In addition to solving development problems, John's purvue is to improve system engineering processes and tools, and plan for long range implications of nano- and other disruptive technology.

The S-67 featured a five-bladed main rotor and tail rotor . The main rotor was taken from the S-61, but was modified to have a hub fairing, swept main rotor blade tips and a special "alpha-1" linkage which was added to the main rotor controls to increase collective pitch sensitivity and so extend the collective pitch range. The 20° swept main rotor blade tips help to overcome a phenomenon called sub-multiple oscillating track (SMOT) that causes variations in tip track at high Mach numbers. [5] [7] These allowed the S-67 to achieve and maintain high cruise speeds. To reduce drag at high speed, the mainwheels retracted fully into the stub wing sponsons. It had speed brakes on the wing trailing edges [8] that could be used to decrease speed or increase maneuverability. [3]

Rotorcraft research paper

rotorcraft research paper


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