All 67 people on board the plane and the helicopter were killed. An American Airlines regional jet went down in the Potomac River near Washington, D.C.'s Ronald Reagan Washington National Airport ...
Abstract: This article explores the issue of robust attitude control for a two-degree-of-freedom helicopters (2-DOF helicopters) system under the fixed-time (FT) control rule. Thanks to the ...
Abstract: This brief presents a novel active fault-tolerant control (FTC) scheme for an unstable three-degree-of-freedom (3-DOF) helicopter subject to motor faults. The helicopter is instrumented only ...
Some residents in Newport, Ore., believed that the Trump administration had removed its Coast Guard rescue helicopter to make way for an immigration detention site. By Anna Griffin The Trump ...
The federal government is considering passing along its fleet of retiring Tiger helicopters to Ukraine, as the United States works to broker a peace deal in Moscow. It is expected a significant ...
Russia’s heavy rotorcraft casualties in the early part of the Ukraine war stem from outdated tactics and poor planning, argues Bell executive and former US Army general Jeffrey Schloesser, and do not ...
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