A newly-developed stealth helicopter design may have been used to transport the US Navy task force that killed Osama Bin Laden at the start of May 2011, it's been suggested.
Images of part of the helicopter released over the past few days show a tail rotor layout that's unlike anything known to be in service today. Only the tail section of the secretive design is reported to now be intact, after the troops that killed Osama destroyed the helicopter, too.
Many sources now support the idea that the helicopter could have been a modified Sikorsky Black Hawk helicopter, with stealth-type upgrades.
The Sikorsky UH-60 Black Hawk is a widely-used helicopter design, produced in many different versions to suit the needs of various operators.
