So I finally bit the bullet and bought a new prop for Wailana. A folding Martec elliptical 16″ x 12″ RH.
This means that it’s 16″ diameter with a 12″ pitch (the distance traveled forward in one rotation) – right hand turning.
The old one was 16″ x 10″ and when they replaced the engine with a more powerful one they didn’t re-prop so I could never get much past 5.5 kts. I’m now getting 7 kts easily at 3,000 RPM. I couldn’t be happier! Price with tax was about one boat unit = $1,000.
Installation was straight forward.etting the old prop off was the hard part. Luckily the yard had a special tool that looks like a giant ‘C’ clamp and it popped off with a bang.