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Sounding the Sumburgh Foghorn

posted by Jason Kottke   Dec 03, 2021

Built in 1905 and recently restored to working order, the Sumburgh Foghorn is perhaps the last functioning foghorn in Scotland. This two-minute film, which is simply but beautifully shot, documents the surprisingly elaborate process of sounding the horn.

Out of use since 1987, the foghorn was painstakingly restored by Brian Johnson. Shown in the video is the annual Foghorn sounding at Sumburgh Lighthouse, Shetland, Scotland. Brian starts up the 1951 Kelvin K-Series Diesel 44hp Engines. The engines power the Alley and MacLellan compressors, which in turn, power the foghorn.

Just so’s you know, the horn was originally much louder at the end, but YouTube’s audio algorithm turned the volume down. I tried several versions but it wasn’t having it.

I wish we could experience the true loudness of the horn through the video — it was so powerful that it could be heard at a range of 20 miles on foggy days. (thx, mick)