Unlike traditional helicopters, the X2 employs rigid ... of the S-97 changes fairly significantly with the prop, and this is also one of the considerations made to determine when to use it.
TPD says it would use Prop. 414 funds to replace one of its helicopters with a new model and another with a plane. It also would pay for parts for the remaining helicopter, including an engine and ...
The one just described was one of the maneuvers ... In fact, similar to how a tail rotor contributes to noise in conventional helicopters, the pusher prop is a primary source of sound in the ...
Marine One, the presidential helicopter, is another such mode of transportation. With spacious, soundproof interiors, advanced defense systems, and a landing zone on the White House lawn ...
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