My objective for the script was to make the minimap feel more "alive," but presently the mechanic is simple, with a display mechanism that operates as so: if a player is inside a helicopter, all helipads hosted in the game will reveal on the map, complete with an animation that resembles the airport beacons.

The Helideck Signaling mod for GTA V is a great tool for helicopter pilots. It provides a number of useful features, including an altitude indicator, a heading indicator, and an airspeed indicator. The mod also includes a signaling system that allows pilots to communicate with other pilots and control towers. Visit FivemCartel for more info.