I read about it on a boat board. He made this elegant gossamer on tubing canoe type boat, and was going to compete in this event sponsored by a drill manufacturer. His execution was superb, as we have come to expect from Jeremy. While his boat was sitting on it's stands waiting to launch, a passerby came up pulled the drill trigger and shattered/damaged Jeremy's custom made prop or transmission (forgot which) in the dirt! I do not believe he was able to compete.liveforphysics wrote:I would expect Jeremy won it.
Yes it is, taken before some "kind" member of the public decided it would be fun to see if my prop would plough up the turf and powered it up with the prop resting on the ground..............
The result was a broken gearbox which led to my retirement from the challenge before I'd had a chance to try the boat out - months of work wasted by a few seconds of thoughtlessness. Some people are so moronic they shouldn't be allowed to breed, IMHO
Jeremy Harris wrote:I see I've been tracked down! ... the speed of the winning boat, powered by a single cordless drill and a model aircraft prop, was astounding. Jeremy
A competition for drill powered canoe's, that's unbelievable. What is it's goal, speed, originality, or just fun?
bigmoose wrote:Jeremy your too creative to not "follow..." that said, hope you will explain the physics of how the model aircraft prop worked so well in water! I would never have expected that.
Bertoa wrote:A competition for drill powered canoe's, that's unbelievable. What is it's goal, speed, originality, or just fun?
It is such a pleasure to see that on the Cordless Canoe Chalenge (the 3 C's) there where very original design's and solutions
AND extremely high speed boats AND there was a lot of fun. Yes Jeremy, a typical British affair, that's wat we like so much
here on the continent.
Adding the PWM controller and adjusting 'throttle' to give 4.3 mph speed:
-Standard (boat) prop pulled 330 watts; range 1.7 hrs, 7.3 miles
-10x6 (model airplane) prop pulled 260 watts; range 2.2 hrs, 9.5 miles
-10x6 (model airplane) prop plus fairing and spinner pulled 190 watts; range 3.2 hrs, 13.8 miles.
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