The basic hull goes back to 1938. Its the oldest class in the APBA, since about 1948. The engines rules have changed thru the years. If you look they had multiple carbs back then, on flat head engines. You can still run multi carbs or fuel injection on an alternative smaller 275 ci engine verses a 314, but nobody runs that anymore.
The basic hull has remained pretty much the same thru all the years. But the rules covering the hull are pretty well spelled out and there is not much lee way. Its one of the things that caused the current riff and split in the class. So call variations from the hull specs.
When the crackers first came on the scene, they were the closest thing to what was called the Pacific One Design Hydros, and the crackers were the fastest accelerating hull in circle boats prior to the V drive flat coming on the scene around 1953-54 and becoming a class in 1959. Prior to the SK class, V drive flats began to own ski racing, and they had their own circle boat races between themselves at the ski races. APBA SK races and the start of boat drags were almost at the same time, primarily due to the creation of the v drive flat.
Pacific One Design Hydro (PODH)
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