pitch question

[JohnsonM50]

I have several props and some are unmarked, I dont have a pitch guage but have carpenters angle tool and speed square. If I check the angle of known pitches against unmarked ones will this be a reasonable measurement considering they might be different types of prop? And where on the blades is best to check? Thanks.

[Mark75H]

If they are all pretty close to the same diameter and you measure them the same way, yes, measuring that way will give you at least a rough guess on the pitch. If I recall correctly pitch is usually measured at about 70% radius.

Measure the side of the blade that is away from the boat, not the front

[JohnsonM50]

If they are all pretty close to the same diameter and you measure them the same way, yes, measuring that way will give you at least a rough guess on the pitch. If I recall correctly pitch is usually measured at about 70% radius.

Measure the side of the blade that is away from the boat, not the front

Thanks Sam