Description: Army Helicopter: Ext: Flying Steady Helicopters

Description: Jet Helicopter, Idle and Lift Off.

Description: Huey: Landing, Engine Slow Down Helicopters

Description: Helicopter: Ext: Approach, Pass By Overhead Helicopters

Description: Medium Speed Helicopter By, Medium Distant.

Description: Alouette: Flying By, Close, Landing Helicopters

Description: Helicopter Startup, Jet Ranger, Startup with Engine & Turbine Whine, Builds To Take Off with Blade Thwop.