Hi all so I picked up an arrow 5 udi rc boat. Tested it once with the prop it came with and it ran great. Tried it the second day with An eBay prop 35mm x 1.4mm and it wouldn’t even move at full speed just spun the prop. I’m confused as to why?
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The pitch of the prop was to low. Worked great once I put the stock prop on.was prop slipping on flexshaft?. did new prop not have keyway?