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3

Yes, there are risks. Fine particles might damage the main or tail rotor. Volcanic fumes might reduce the air's oxygen content. Heat might reduce power and lift. But ... ... should not the persons at location who are risking their own lives be the best to judge whether to fly or not? Why do we think that some faceless bureaucracy, far removed from the scene, ...


14

Flying is all about risk mitigation. Any time you start a helicopter you are taking a risk that some accident might happen. So you, as example, make sure that the area around the helicopter is free from debris that might be blown around and possibly harm the helicopter or anything else. Flyers spend a lot of time avoiding risks, for example by making sure ...


16

Look up "Twilight Zone Accident" on Wikipedia. This occurred when a pyrotechnic charge went off in proximity to a helicopter's tail rotor, causing the composite blade of the tail rotor to disintegrate from heat. The helicopter then spun out of control, crashed, and killed three people.


25

the clarity of pictures like those on this article don't suggest a BA 009 scenario to me But that situation can change during the rescue, i.e. a new eruption. As for the claim: Can volcanic eruptions endanger helicopters and other aircraft? Yes. Encounters between aircraft and clouds of volcanic ash are a serious concern. Jet engines and other aircraft ...


4

The pictured helicopter is a Mosquito Air. It does have a swash plate, it's just not visible because it's inside the main mast. The swash plate is connected to the blades via pushrods in the hollow rotor shaft, which connect to the blades from above.


5

Short answer The TDP is part of the takeoff profiles provided by the manufacturer for any category A helicopter. Its height is selected based on helicopter performances determined by flight testing. Profiles includes a back-up takeoff used for small takeoff areas: Source In this profile, the helicopter first moves backward to get away from obstacles, ...


0

Yes you can. You must, however comply with the terms of §91.711, §91.713 and §91.715, and obtain a special flight permit for the proposed operation, but it can be done. For reference, §91.711 reads: a) General. In addition to the other applicable regulations of this part, each person operating a foreign civil aircraft within the United States shall comply ...


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