In fact, a little computer on the CJ1's center console calculates rotation speed to the knot, based on temperature, altitude and weight aboard.

FORBES: Jet Pilot for a Day

The amount of practice, study and hours spent mastering every type of environment (shooting from buildings, helicopters, ships, shooting thru glass, walls, different mathematical calculations for temperature, humidity, altitude, load, etc.).

FORBES: What Is It Like To Be A Sniper?

Jones added sensors that, by monitoring the air temperature above and below the heli ten times a second, can keep the chopper at a fixed altitude with more accuracy than a human on the ground can.

FORBES: Eye in the Sky