Testing Spinosaurus animatronics on the set of Jurassic Park III @StanWinstonSchool
Testing Spinosaurus animatronics on the set of Jurassic Park III  @StanWinstonSchool
Uploaded June 2025 | Updated September 2026, 2 weeks ago
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By the time it was completed, the Stan Winston Studio’s full-size Spinosaur measured nearly 45 feet long and weighed 25,000 pounds. Revisiting the approach that had worked so well with the T-rex rigs for The Lost World, the crew built the Spinosaur from the tip of its nose to the base of its tail, from the ‘knees’ up, and mounted it to a motorized cart that ran on tracks.

The Spinosaur was not only the biggest and heaviest animatronic ever built by the studio, it was the fastest, featuring state-of-the-art, ‘hot-rod’ hydraulics controlled by an eighteen-inch-tall telemetry device. Whereas the T-rex had boasted 200 horsepower, 1000 horsepower drove the Spinosaurus. Its solid-state construction also made it far sturdier than the T-rex, which had been quite delicate, despite its appearance. The Spinosaur, in contrast, could take a beating.

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Text is excerpted from The Winston Effect: The Art & History of Stan Winston Studio: amazon.com/The-Winston-Effect-History-Studio/dp/1845761502
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Testing Spinosaurus animatronics on the set of Jurassic Park III

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