Reducing a propeller’s diameter generally increases the maximum RPMs, as it decreases the resistance against the water, but it can also decrease thrust and acceleration, especially for heavier boats.
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Argonaut Jr – Drop Weights
Test pilots have parachutes, and submariners have drop weights.
Argonaut Jr – Building a Submarine Not to Crush
I’m not an engineer. Likely you are not one either, but if you learn a few facts it’s amazing what you can do with those, some common sense and a desire live an adventurous life.
