 A noise certification will cost $588,000, same as for a large helicopter.AgustaWestland says they have free-flown a manned electric tiltrotor in 2013 called Project Zero, with its rotors inside the wingspan.In 2013, Bell Helicopter CEO John Garrison responded to Boeing's taking a different airframe partner for the US Army's future lift requirements by indicating that Bell would take the lead itself in developing the Bell V-280 Valor, with Lockheed Martin.