Quick calculations, coordination, communication and feedback were key in helping helicopter pilots hit their spots.

a fire popped up in the Hollywood Hills known as the Sunset Fire, and helicopters used water drops to help extinguish it. A video clip showing just how effective one water drop was is going viral on ...

A San Diego Fire-Rescue Department helicopter drops water on a hot spot from a fire near Gilman Drive and Via Alicante in La Jolla on Jan. 23. (K.C. Alfred / The San Diego Union-Tribune ...

In AIR7, helicopter reporter Chris Cristi watched Wednesday night's quick response knocking down the Sepulveda Fire. Wave after wave of water drops essentially stopped the fire in its tracks in ...

The Hughes fire ignited ... firefighting helicopters circled in constant, hurried laps between the lake and the burning hillsides. It took them only about a minute to fill their water tanks ...

The fire eventually grew to 23,448 acres ... 500 feet above monitoring and providing immediate feedback on each water drop. Helicopters are kept separate from fixed-wing aircraft, which work ...