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Drayton Manor Park

Here's an interesting fact which might not be well-known. The audio for Excalibur was triggered using infrared. IR transmitters were secured to posts around the lake, while IR receivers were mounted on the boats. One of the main reasons for the unreliable audio was the inconsistent water levels of the lake. When the water level dropped, or dirt and grime blocked the infrared, the transmitters and receivers wouldn't align properly, resulting in audio not being triggered, and the familiar 'please remain seated' effect to play on repeat. Boats used a car battery to power the speaker, and the audio effects were numbered MP3 files, which were targeted by each IR transmitter.
 
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