TAG: GPS history

‘Flying for GPS’: Memoir of a Pioneer Era — Excerpt

July 1, 2014By

Flying for GPS, a chronicle of Len Jacobson’s role in the development and promotion of the Global Positioning System, has just been published. The book spans a 50-year career, during which Jacobson flew 2.5 million miles as a missionary for GPS and as a developer of user equipment. He kept an extensive log of all of his flights, and it... read more

Jacobson Chronicles Evolution of GPS in New Book

June 4, 2014By
Flying-for-GPS-Jacobson

Flying for GPS, a chronicle of Len Jacobson’s role in the development and promotion of the Global Positioning System, has just been published. The book spans a 50-year career, during which Jacobson flew 2½ million miles as a missionary for GPS and as a developer of user equipment. He kept an extensive log of all of his flights, and it... read more

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Expert Advice: Looking Back to the Early Days of GPS

September 1, 2013By

By Len Jacobson Besides my family and friends, two major influences have guided my life. One is GPS, and the other is flying, although I’m not a pilot. Most of the flying was on business trips for GPS. I’ve been writing a book about my experiences and how I helped in a small way to bring GPS to the world.... read more

Part 2: The Origins of GPS, Fighting to Survive

June 1, 2010By
At the JPO. Frank Butterfield of Aerospace, Col. Parkinson, and Cdr. Bill Huston, deputy JPO director from the U.S. Navy,
in the early 1970s. A model of a Phase I GPS satellite stands on the table between the latter two.

GPS Phase I program approval meant that the real work could begin. The conclusion of a two-part history, told by the people who made it. read more

Part 1: The Origins of GPS, and the Pioneers Who Launched the System

May 1, 2010By
Mathematician Bill Guier (l) and physicist George Weiffenbach (r), told APL Research Center director Frank T. McClure (c), about their success using Doppler tracking for satellites. “McClure’s brain started going into fast forward,” remembered John Dassoulas. “Knowing the navigational challenges the U.S. Navy faced, McClure said, ‘Well, if you can find out where the satellite is, you ought to be able to turn that problem upside down and find out where you are.’ “

The original system study, the key innovations, and the forgotten heroes of the world’s first — and still greatest — global navigation satellite system. True history, told by the people who made it. Part One of a Two-Part Special Feature. read more