Dumas Swamp Buggy was the big brother of the Lil Swamp Buggy 1/2A which I ran back in the late 70's
in a local pond good boat a bit big for 1/2A if speed is in mind. With the engine set just right on
a calm day you could get it clicking along at a good pace. Wet grass and your all set in a pinch for
a run or snow / ice.