The Delta Hydrosonic Special was a high-performance powerboat designed by Sonny Levi, a famous boat designer and powerboat racer. The boat was built in the 1960s and 1970s and was known for its innovative design and impressive speed.
Hydrosonic Special – No. 320 – Class 1 Sonny Levi designed delta.Crewed by Lady Arran, Mike Trimming & Jack Knight Cowes Torquay 1967 retired just before the finish lying 3rd behind Surfury and Delta Synthesis
The Delta Hydrosonic Special was a hydroplane-style boat, meaning it was designed to ride on top of the water rather than plow through it. The boat was constructed using lightweight materials, including aluminum and fiberglass, to minimize weight and maximize speed.