Skidaddle 20. I made the mistake of of using the suggested hardware. Tore out the straight shaft and put in a flex shaft. Much better, but still a water turkey. I think the K&B 3.5 was too much for early Dumas boats that were designed around a Veco 19.
Kraft 72 radio I bought second hand with a brick receiver. The brick was two servos and reciever in one package. Nicads too. Pretty fancy stuff back then.
Sounds like me, except for a few minor differences:
1) Instead of the Kraft radio, I used a Futaba twin stick as they were readily available in 1982. Mine was a 72MHz on the old Blue/White channel, 72.160 MHz. I didn't know it at the time, but I was using a radio that was for aircraft, sold to me by a Navy base hobby shop clerk that didn't know any better either.
2) I used an HB .20, nothing more than a water cooled airplane engine with a maximum RPM of 17K, not nearly enough to push that heavy boat. It probably would have worked good on a "Windy" with a 9X6 prop, using a water pick up to cool it.
Like you, I also used the Dumas hardware kit, not knowing any better at the time. By the time I was done building it, it weighed roughly 8 pounds, more than some Sport 40s of that era. Needless to say, it was doomed to fail, and it did in 1986 when I hit a rock in the lake at Jensen Grove Park in Blackfoot ID. Boat broke in half but somehow made it back to shore where I recovered it. I ended up taking it home, stripped it down for anything still usable and threw what was left in the trash
Jeff
