They managed to penetrate Pakistani airspace, hover for 40 minutes, and flee undetected towards Afghanistan until the very last minute.And now, pictures of the wrecked helicopter that crashed in Osama bin Laden's compound may shed new light on how Navy SEAL raiders snuck into Abbottabad without alerting Pakistani forces - by using secret 'stealth' helicopters.
Pictures of the downed chopper's heavily damaged tail section bear a striking resemblance to the smooth angular design of other stealth aircraft and have left aviation experts struggling to identify the unknown machine.
The pictures have left aviation experts scratching their heads, with several concluding it must be a new, as yet unknown helicopter design.
Bill Sweetman, editor of Aviation Week said the pictures show a 'stealth-configuration' on the wrecked rotor housing.
He said: 'Well, now we know why all of us had trouble ID'ing the helicopter that crashed, or was brought down, in the Osama raid.
'It was a secretly developed stealth helicopter, probably a highly modified version of an H-60 Blackhawk.' Read More
