1.   As Paige hastened into her shirt the drone changed to the recognisable beat of helicopter blades.

2.   Assorted bad guys meet death by more gruesome means, including whirling helicopter blades.

3.   He notes that engineers have already used birdlike designs to improve the efficiency and reduce the noise of helicopter blades.

4.   I jumped to the ground, ran in a crouch until I got clear of the spinning helicopter blades, turned around, and watched the chopper lift.

5.   In cold, dense air the sound of helicopter blades carries a long way.

6.   Not even the whirring roar of helicopter blades at their hind quarters did the trick.

7.   Nine months after that, her husband, Boris Sagal, who directed television movies, was killed on location by a helicopter blade.

8.   On one swing, he broke his bat, the splintered barrel whirling toward the third-base coaching box like a helicopter blade.

9.   Six feet in the air, Nikki Stone is a whirling glint of blond hair and skis rotating a little like helicopter blades.

10.   The fans began twirling their orange towels over their heads like helicopter blades, and the place nearly lifted off its foundation.