 Feel the ring before I break it. I guess it's a stark out. I'm installing this tomorrow On this propeller, I actually did some calculating So first I figured out how many times per second this rotates Rpms isn't as useful because minutes isn't useful for anything. So revolutions per second roughly six That's a kind of a decent like pace I could I could do for a while Now the speed I want to I want to I want to have the boat going is like 12 miles per hour 20 kilometers per hour That may be hoping for a lot, but I'm hoping I can do that with the motor and pedaling at the same time So I'm designing my mode my propeller for that so That ends up being about five and a half meters per second travel So I've got six revolutions per second and five and a half meters per second So I'm going to fudge the numbers a little bit and say this This has to turn once roughly every meter So I calculated the circumference the distance this has to travel around For every meter and it just drew that out on a flat thing and got roughly this angle and then I Basically twisted this from the center out because that you know, this has to travel us a smaller distance around than this so this has to be more angled into it and this is the Shallowest angle this way and this is the steepest anyway, so I actually calculated To make this propeller work efficiently at 12 miles an hour 20 kilometers per hour So that's obviously going to be with the motor But I want it to be most efficient at top speed with the motor So this won't be the most efficient pedaling just on its own The other thing is I can also bend these still to you know make adjustments And if I really want to make a lot of adjustments I can take all this part take the fins off put new ones on but I don't I don't think I need to put new ones on Unless I break them or something. Oh man. It is dark and pouring rain out there All right, let's make a run for it