..or you could try to fit a "rope cutter" that are fitted to 1:1 boats to protect the shaft seal.
By the way, I love this thread and what you're doing with that tugboat. Many years ago I had a slightly smaller version of a Raebosch CP propeller, never got around to install it and sold it.
All the best!
Hama
A ropecutter would be an option too, but is a bit harder to make and a bit of a danger to the fingers whenever I have to work on the prop (which is often, since it receives a regreasing after every outing).
Thanks for the compliments! I hope to show that IC engines and scale boats CAN go together, even in the day and age of "no noise" and "no pollution", and that there are alternative ways to power an RC model boat.
It seems that many of the Raboesch CP props never were mounted. I VERY rarely see boats in the classifieds with one, but I have seen quite a few of those never mounted props offered.
Only a relatively small number were made, approx 2000 all sizes together... No idea how many were made by Rivabo.
These props were a bit of a faillure in the sense that they were not user servicable, yet users WOULD first try and dismantle them, subsequently unable to put them back together, and the aftersales hassle (at least in the case of Raboesch) was what did them in.
Which is a shame, really, since they actually work perfectly fine once you figure out their quirks.