I have twin screw, fixed Kort nozzle system.
I'm buying propellers, but cannot afford proper Kort props. Not to mention custom made ones.
The size of the propeller should be 54mm to be as close a shave inside the nozzle as possible.
Of course, no such thing among the cheaper products.
Should I buy 50mm props and live with a greater gap until I can afford proper props, OR
... is it feasible to buy 55mm more regular (146/149?) props and shave 1mm off the blades? (That would also make the blades look more Kort-like). I thought that I could achieve an even 1mm reduction in diametre with a dremel - fixating both the prop shaft and the dremel to make a balanced shave.
I understand that I would be running the risk of creating unbalanced propellers. In my case it would be a slowly turning propulsion system of a tug. If the propellers were plastic, the balancing problem is even less of a risk?
I tried to find a discussion on this matter, but didn't find the correct search terms or there hasn't been discussion about filing down the size of a propeller.