The electromechanical angle computer inside the B-52 bomber’s star tracker

The electromechanical angle computer inside the B-52 bomber’s star tracker Before GPS, how did aircraft navigate? One important technique was celestial navigation: navigating from the positions of the stars, planets, or the sun. While celestial navigation is accurate, cannot be jammed, and doesn’t require any broadcast infrastructure, it is a difficult and time-consuming process to perform manually. In the early 1960s, an automated system was developed for the B-52 bomber to automatically track stars and compute navigation information. Digital computers weren’t suitable at the time, so the star tracking system performed trigonometric calculations with an electromechanical…

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