Results 41 to 50 of about 6,631,530 (188)
Procedures for the Safe Operation of Helicopters in an Energized Wire Environment
Safety & DefenseThis paper describes procedures for the safe operation of helicopters in an energized wire environment. The procedures are designed to respect the appropriate minimum distances that must be maintained between the extremities of the helicopter and ...
Eugeniusz Piechoczek, George Gela
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Drag Characteristics and Reduction Test for Hub of Coaxial-rotor Helicopter
Hangkong gongcheng jinzhan, 2020 The drag of coaxial helicopter hub accounts is more than 50% of the total helicopter's waste drag, so it is necessary to research the drag characteristics and reduction design of the hub. Wind tunnel test is carried out for a coaxial helicopter hub model,
LONG Haibin, WU Yuping
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ON THE QUESTION OF SAFETY OPERATION OF A HELICOPTER AFTER CARGO DISCHARGE FROM EXTERNAL SLING
Научный вестник МГТУ ГА, 2018 When helicopters fly with suspended load, there may be a need for a load drop. This can be associated with both the abnormal situations in flight and with a regular load drop to a predetermined area.
R. V. Volobuev, V. V. Efimov
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Simulation of Backstepping-based Nonlinear Control for Quadrotor Helicopter
Applications of Modelling and Simulation, 2018 The control of quadrotor helicopter in a hover condition has always been a great challenge for control engineers and researchers. Various algorithms have been developed to control this type of helicopter due to its high nonlinearities.
M. A. M. Basri +2 more
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Научный вестник МГТУ ГА, 2016 The article considers the adequacy of a mathematical model of Mi-8MTV helicopter dynamics with an external load in terms of controllability, based on comparison of data obtained from computational experiments and flight testing. The results of evaluation
G. N. Babenko +2 more
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A Numerical Method for Blast Shock Wave Analysis of Missile Launch from Aircraft
International Journal of Aerospace Engineering, 2015 An efficient empirical approach was developed to accurately represent the blast shock wave loading resulting from the launch of a missile from a military aircraft to be used in numerical analyses.
Sebastian Heimbs +2 more
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Trauma Surgery & Acute Care Open, 2019 Background Trauma care has improved substantially in the last decade. The emphasis of the Golden Hour in trauma care has encouraged the creation of faster transport and earlier prehospital intervention.
David Michaels +3 more
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Extracting Lateral Transfer Function of a Remotely Piloted Helicopter by System Identification Method Using 3-DOF Test Stand [PDF]
International Journal of Advanced Design and Manufacturing Technology, 2011 At the beginning of this paper, design and manufacturing stages of the 3 degree of freedom test stand for a remotely piloted helicopter is described, in which the helicopter is able to rotate about its three primary accesses.
Hesamodin EbnodinHamidi +2 more
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Performance and Vibration Analyses of Lift-Offset Helicopters
International Journal of Aerospace Engineering, 2017 A validation study on the performance and vibration analyses of the XH-59A compound helicopter is conducted to establish techniques for the comprehensive analysis of lift-offset compound helicopters.
Jeong-In Go, Do-Hyung Kim, Jae-Sang Park
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