Future Bell helicopter designs could come with split-tip main rotor blades and anti-torque control provided by a cross-flow fan embedded in the tail boom, rather than a traditional tail rotor, if two ...

The Israeli air force is to slash the interval for replacing tail rotor blades on its Boeing AH-64 Apache attack helicopters, after a 7.8in (20cm)-long crack was found during a routine inspection last ...

LONDON—Leonardo Helicopters has begun ground tests of two active main rotor blade technologies, with the aim of flying both before this summer. The company is experimenting with an Active Gurney Flap ...

Ordinarily on a helicopter, the main (top) rotor is mechanically linked to the tail rotor, so the spinning of the former causes the latter to do likewise. An experimental new system replaces the tail ...

May 18 (UPI) --Sikorsky Aircraft Corp. has received a $37.6 million contract for the refurbishment and overhaul of 381 UH-60 tail rotor blades, the Department of Defense announced Wednesday. The work ...