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Building a model of a boat/plane 1/4 scale to the real deal. The model is 32" long X 6" wide with a wing 5'6" long X 18" wide. It will have two large pontoons for stability. It is intended to fly using "surface effect" like pelicans, just inches off the water surface. I can power it with an electric "outboard" with a long, very long, shaft, or an electric fan like an airboat. The outboard configuration would require the motor be mounted on a swivel to raise and lower the prop. Problem here would be the prop attitude to the water at different shaft angles relative to the water. The fan sounds much simpler.
Finally the question. Assuming you don't convince me to go with the outboard model, how do I determine what sort of engine/prop would best suit my Frankenstein creation?
Also, I'll need all the electronics to go with it and two servos. I don't want to go cheap but I don't want to break the bank either.
Happy to send photos of the construction so far if you'd like.
Thanks a bunch,