Southwest Airlines today has equipped their flight system with new Landing GPS technology. They has changed by using satellite assisted. Based on the information, this new GPS technology that called the NextGen project could give a big impact for the fuel savings system.

This simple switch is going to cost the airlines close to $200 millions however it can be recouped by fuel savings GPS technology may provide.

The satellite-assisted landings will let pilots descend in a much straighter line, without having to throttle back, saving fuel, cutting noise and reducing environmental impacts.

[Source]