I have a twin bladed feathering prop. From the paperwork left by the old owner, it appears to be a Martec 18R712.
Now I'm trying to replace the zinc on the end (the old one came off). Anyone know what kind goes on the end?
The standard ones on the shelf appear to go over the end of the shaft and screw in to it. There's no way one is going over the end of this prop, although there is a hole on the end, obviously for one.