1.   A rescue helicopter is on its way.

2.   A rescue helicopter was scrambled after his empty dinghy was spotted floating out to sea.

3.   Dense cloud prevented the rescue helicopter from taking off.

4.   He was struck there for four hours with Park Service rescue helicopters buzzing around, throwing him ropes.

5.   The bad weather caused a three-hour delay in sending out rescue helicopters.

6.   The rescue helicopter strewed thousands of blossoms on the waters of the Bay.

7.   We huddled together, secure in the knowledge that the rescue helicopter was on its way.

8.   The enemy was shooting at the rescue helicopter.

9.   THE FIGHT to prevent the rescue helicopters of RAF Leuchars in Fife being grounded is to be stepped up.

10.   As he spoke, a mountain rescue helicopter could be heard in the distance, making its way toward the hospital with his next patient.