Have you ever wondered just how fast the AT-ATs in Star Wars can walk? Well according to Wookiepedia, the answer is a nice round number – 60 km/h, or about 37.3 mph. However, that just seems like an arbitrary figure somebody made up. Sci fi movie fan EC Henry wasn’t satisfied with that number, and decided to do some math to figure out the actual speed of an AT-AT.
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Using a single short scene from The Empire Strikes Back, EC was able to use the known height of Luke Skywalker as a measuring stick to figure out the height of the AT-AT, which turns out to be very close to the number provided by official Star Wars literature, 22.5 meters (~73.8 feet). Combining this information with a couple of frames of motion, he was able to estimate the speed at which it was traveling in that scene:
He concludes that Imperial Walkers aren’t nearly as fast as we’ve been led to believe. If AT-ATs moved at the speed that’s been documented, they’d look rather silly running around. What do you think of EC’s analysis? Is there a gaping hole in his logic? It seems pretty sound to me.