Apollo’s Life-Saving Q-Ball

At the very top of the Saturn V stack, at the top of the Launch Escape Tower, was a small ball bored with eight holes. These holes led to the Q-ball, an unassuming instrument that played a huge role in making Saturn V launches safe for astronauts. 
The Q-ball was similar to an airplane’s pitot tubes. As air flows into the pitot tubes on a plane, data on airspeed and pressure is sent to the computer’s onboard autopilot system and onto displays for the pilot. They’re common and just look like d

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