Instead of overcoming helicopter problems to successfully execute their mission, her SEALs, who are in pursuit of a "High Value Individual," run into grave difficulties.
Janes comes across as better informed about the Army's helicopter problems than the Prime Minister — or at least about the costs of those problems.
That mission failed before a shot was fired because of helicopter mechanical problems.
Andrew H. Card Jr., Mr. Bush's White House chief of staff, grew exasperated in 2002 by helicopter mechanical problems and instigated the development of an ultramodern replacement.
Corrosion is one of the helicopter hollowware problems, especially for the ones that are under stress, such as fins.
Federal lawmakers have called upon U.S. transportation officials to look into the helicopter noise problems in Los Angeles.
To compare the relative performance between the methods, the convergence rate and computational time for each method is compared in three numerical studies consisting of a ship stability example, the delayed damped Mathieu equation, and a helicopter rotor control problem.
Then, rotor blade tip shapes that have been used, or suggested for use, on past and present rotorcraft are examined to obtain a better understanding of the helicopter tip design problem.
"The helicopter had technical problems and crash-landed in Shahjoi district around 4pm.
The Taliban claimed responsibility for the crash, but Marjan Haqmal, the chief of police of the Nad Ali district of Helmand Province, where the crash took place, said the helicopter had technical problems.
To deal with the problem, helicopters can tilt the blades themselves, and thus vary the amount of lift they generate, as they spin but only up to a point.
