20 SF Prop numbers

[CHANCE1234]

Finally got a chance to test out a new (to me) stainless steel prop. This one is a yamaha K18 3 blade stainless. Numbers below are trimmed all the way down

3400 RPM. 20 kts
4000. 24.2
4500. 27.8
5000. 30.5
5500. WOT 34

Trimmed up

3400. 20.3
4000. 25.1
4500. 28.5
5000. 31.5
WOT. Never wrote it down.

Overall I'm pretty happy with the numbers. At cruise looks like an increase of almost 2 knots which is fine by me.