Ski jumping sling
The ski jumping sling system is a training equipment for ski jumpers. It was invented by Spede Pasanen. There was one prototype in the years 1970–1980 in Puijo, Kuopio, Finland. The sling is used to throw ski jumpers from level ground with an acceleration resembling that of a ski-jumping tower. The sling was seen in the film Professori Uuno D.G. Turhapuro.
Spede-Idea Oy still manufactures the sling. The modern version is electronically controlled. The newest sling is designed for the needs of snowboarders for a variety of jumping events. It makes it possible to arrange such events in e.g. city centers.
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