Hello all. I recently started building a USS Texas from a kit purchased from Strike Models some time back. I started looking at the drive system and decided to go with dual 5mm shafts driven by a pair of 550 motors. The problem I’m having is with finding appropriate props for the drive shafts I purchased off eBay (don’t hate, they were reasonably priced). These shafts have drive dogs on them for what looks like racing props. I don’t think those are appropriate for a 47” battleship. I had seen some on Model-dockyard but those are all threaded, and honestly I can’t figure how they stay on short of lock tight. Any suggestions on where I could find compatible props? Will the threaded props work on a shaft with the drive dogs?
it looks like you could take the drive dog off, seems they are just held on with a set screw by the picture you provided. then get a prop that has a set screw to hold it on, i would imagine that they would have put flats on that part of the shaft for the set screw they used. wouldn't need the threaded part, could cut it off
I appreciate the feedback. I have been looking and not finding a diverse number of retailers offering 5mm shaft props. Another option would be getting a larger prop and using a shim collar to make it fit the 5mm shaft. Alternatively I can replace the 5mm shaft with something small, but I like the strength of the 5 mm setup. Do you or any other members know of a place to buy a 5mm shaft prop with a set screw? Are the racing props something I can use? Those are more readily available.
Most people running thread-on props use loctite, some thread them onto the shaft and then braze them in place.
If you ask the folks at BC nicely, they might make a set of props with a larger hole. They have made 3/16s in the past and you can easily overdrill that to true 5mm.
Thank you all for the assistance. I have found some that will work. This being my first large scale build, I’ll probably be back with mor qts. Cheers
