Not to sure how far the prop shaft is placed in the 70mm nozzle I am useing 67mm props I am thinking if prop tube is in nozzle to deep the prop will touch when rudder is applied
This is the first time I have installed kort nozzles so I need some help setting up 🤔
1275mini
To try and answer your question
How critical this is will depend on how much clearance there is between the prop & the nozzle + the shape of both of them. I am assuming that this is a steerable Kort. It is a lot less critical with a fixed Kort.
I set mine up with the centre line of the prop blades in line with the Kort "rudder post". A simple rig can be made to test this with full Kort movement and with your particular components before you either drill holes or fix things into your model.
A card circle on the propshaft that is a nice snug fit to the inner diameter of the nozzle can be a big help for final set up.
There is a potential problem in that when you drop the nozzle it might jam on the propshaft before it clears the rudder tube preventing removal for servicing. Mobile Marine Models sell a prop shaft especially to get over this problem although I have never needed it.
