- Reaction score
While sailing my Bristol 24 this weekend in light wind; I checked my 2 blade prop alignment and found the mark to be 90 degrees from verticle. I watched my knotmeter as I turned the blade to straight up and down. The speed increased 2/10s as soon as the blade was verticle. I moved it back to sideways, and the speed dropped 2/10s. I have a 2 blade, 12" diameter x 14P bronze prop. The prop is completely enclosed in a cutout behind the full keel.