Famed aviator Wiley Post, flying the Lockheed Vega Winnie Mae, becomes the first person to fly around the world solo. The 15,596-mile flight takes seven days, 18 hours, 49 minutes, 30 seconds at an average speed of 134.5 mph.
Pentagon Cancels $6B GPS Ground System Contract
April 20, 2026
The Pentagon has canceled its contract with RTX to field a ground segment to manage its most capable GPS satellites, a more than 15-year effort beleaguered by software development issues and cost overages.