Save that flyover of the Mojave for July.
Starting today and continuing intermittently until the 30th of June, the Navy is doing something that will knock out GPS signals in the Mojave Desert. They won’t say what that something is, though.
The FAA has issued a warning to all “aircraft that rely on GPS,” (your bi-plane is fine) that once someone gets around 40,000 feet in the air on the 7th, 9th, 21st, 23rd, 28th, and 30th of June, between 9:30am and 3:30pm, their GPS will not work.
The FAA has also specifically mentioned that the Embarer Phenom 300, a small luxury business jet, would be at risk, saying that its “flight stability controls” would be affected.
Since neither the FAA nor the Navy are discussing the experiments, it’s hard to say what precisely is going on. GPS jammers can, of course, be bought on the civilian market for under $200. But presumably, the testing will involve disrupting GPS in airborne objects, both manned and unmanned. While the FAA is strictly acting as a messenger on this disruption, they have also been working on their own plans to disrupt airborne actors with advanced drone detection systems.