GPS — Questions and answers
What kind of system was LORAN, developed during World War II?
Answer: A radio navigation system
During the Cold War, why did nuclear submarines need precise positioning?
Answer: To launch missiles
What was the U.S. Navy's first satellite navigation system, launched in 1960?
Answer: TRANSIT
Who was the first program director for the GPS development program, initially called NAVSTAR GPS?
Answer: Colonel Bradford Parkinson
Who ordered the termination of the 'Selective Availability' feature for civilian GPS signals in May 2000?
Answer: President Bill Clinton