Model Aircraft propellers

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My own performance test with an rc aircraft propeller on a solar kayak:
https://youtu.be/6u-j1gxQRGc

I explore the controversial topic of using aircraft propellers underwater. I explain their unexpectedly good performance and compare it to known marine propeller performance.

Wind-tunnel test data for model aircraft props was obtained from:
https://m-selig.ae.illinois.edu/props/volume-1/propDB-volume-1.html

Marine propeller performance curves were extracted from:
Article 237, May 1981
"KT, KQ and Efficiency Curves for the Wageningen B-Series Propellers"
By Bernitsas, Ray and Kinley.
Department of Naval Architecture and Marine Engineering,
The University of Michigan.

Marine propellers geometries were generated with the Design Tool at:
https://www.wageningen-b-series-propeller.com/