Amazon.com description: Product Description: Hydroplane racing captured the heart and soul of Seattle in the early 1950s and never let go. No Seahawks, Sonics, or Mariners game has come close to drawing one-quarter of the audience that watches the hydroplanes race. The unmistakable sound of the boats' huge motors was as big an attraction as the racing itself. In the mid-1980s, something began to change. The distinctive roar of the old Thunderboats gave way to the whoosh of the turbine. The old names like Muncey and Chenoweth were replaced by new names like Hanauer and Villwock.