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Re: Ducted Fans
Ducted fans are interesting. Our robot had two ducted fans that turned with the crab modules, so they assisted regardless of which direction the wheels were pointing. They were approximately six inches in diameter and with the correct motor they could generate about eighteen pounds of thrust each at 30,000 rpm. They were made of carbon fiber and were very strong and light in weight. They are used in large, high end model airplanes.
We could not use the supplied motor,which is a very special high rpm design, so we used CIMS. We tried different gear ratios, but the best we could get was in the 8000 to 9000 rpm range, which degraded their performance considerably, but it was amazing how much breeze came out of those little fans. With the traction of the Lunacy surface being so low, we figured any assist was better then nothing.
"Mr. Bill"
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