Lockheed Martin said this week it is on track to complete a critical design review for the GPS IIIF navigation payload this fall and for the integrated space vehicle in the first quarter of 2020. Jonathon Caldwell, the company's vice president for space navigation systems, told reporters during an Aug. 20 briefing the GPS III follow-on program is well underway and the company is meeting current schedule milestones. The Air Force awarded Lockheed a $7.2 billion contract in September 2018...
