Helicopter in mid-air collision with flight 5342 may not have heard key instruction
The National Transportation Safety Board is holding a media briefing on the mid-air collision last month near Ronald Reagan ...
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Sikorsky Looks Abroad For The Future Of Its X2 Rotor Technology
Sikorsky Looks Abroad For The Future Of Its X2 Rotor Technology is available to both Aviation Week & Space Technology and AWIN subscribers. Subscribe now to read this content, plus receive critical ...