Planes (that you might have actually flown on) used to have depleted uranium on them.
Three biggest American airplane manufacturers putting radioactive material on commercial aircraft designed to carry millions of passengers. Sounds improbable, right?
Between 1969 and 1971, three new commercial airplanes took their first flight—the McDonnell Douglas DC-10, the Lockheed L-1011 TriStar, and the Boeing 747. Made by three different American aircraft manufacturers, these planes had one thing in common—depleted uranium counterweights.
Airplane manufacturers use counterweights to control flight surfaces on airplanes. Without the proper use of counterweights the ailerons, elevators, and the rudder will start wobbling, creating a dangerous elastic motion in the wings and the tail of the airplane. The stresses that this motion creates can rip apart flight surfaces and make the airplane uncontrollable.
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