APBA rules did not allow any apparatus (like an extended cowling) that could be simply bolted on the boat to meet the legal class minimum boat lengths (LOA) required. A boat or two tried that and it was soon outlawed so the wood hulls were cut and modified so they could compete in the next class up. If you look at all of these boats, something just doesn’t seem right. Regardless of how they looked, some were very competitive moving up in class at the time. There are even a few instances were boats moved down in their class and became successful. Click here to read/see a few hydroplane hulls that were extended
