The Evolution of GPS Technology in Aviation

 

Aubrey Gladstone pic

Aubrey Gladstone
Image: gladstoneconsulting.com

Aubrey W. Gladstone serves as the president of Gladstone Consulting, Inc., where he has managed more than $100 million in business work-outs. Outside of this role, Aubrey Gladstone is an experienced commercial pilot.

GPS technology has evolved tremendously over the past two decades, transforming operations across numerous industries, particularly aviation. One of the main functions of GPS is to tell users their location, a task that has greatly improved flight safety.

Prior to GPS technology, pilots were required to dedicate considerable attention to the task of deducing where they were. Location was of such concern that pilots had to study “lost procedures” to know what to do if they got lost in flight, which seems unquestionable today. Legacy systems such as VOR navigation and LORAN were accurate, but with limitations – VOR depended on line of sight, such that flights in mountainous terrain were problematic.

In addition to pinpointing location, GPS technology allows Enhanced Ground Proximity Warning Systems (EGPWS) to alert pilots of obstacles and give a visual overview of the terrain below. With Block III, the next generation of GPS satellites, to be implemented in October 2018, GPS technology will have enhanced availability and accuracy.

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