The helicopter started to drop as we cleared the edge of the mountain side.

Even military helicopters were still rare, just now starting to come off the hues in quantity.

The helicopter started down, and immediately they were blanketed in fog.

The helicopter started its descent into the black heart of the maelstrom.

With those words, the big helicopter started a slow turn I to port.

He complied as the second helicopter moved toward him from the side and started to descend.

He stayed with them until helicopters started circling over the area.

If the helicopters won't start, we will go to the backup machines at the military base.

It is the place where the first helicopter to start the counter insurgency operations landed.

"These helicopters won't even start coming out for 18 months after the appropriation."