Just a little more about Dumas Sk boat kits, they where patterned after the SK Hallett.
That may be the answer. I read it in the instructions, I thought someone had told me that. Thanks for the info.
bob
Now for Flatbottom bubble deck V drive boats, was said to be built for pleasure ( river runner, skiing),
Drag boat, and circle track racing.
I have read that if the engine was driven from the Flywheel it was made the drag,ski, pleasure.
If it was driven from the crank damper then it was design for circle /oval racing. But remember I'm no expert
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