Hi Derek,
Thank you for your observations. I do value them and take them on board, as with other members thoughts. I have just taken these pictures to give a better perspective of the shaft line up.
I have installed different motors because the previous ones were too fast and would have destroyed the Schottles 'mid ocean' . ( something I read about with other's models) They are wired in parallel as well to reduced their RPM. I have also made new motor brackets because the plastic versions were overdriven with fixing holes and messed up the look.
Hi Umi,
The tubing was chosen for it's sturdiness and quite thick walls, but your are correct that it 'bows' outwards at speed. It doesn't appear to want to fly off, but remains in place, at the moment, with no exterior load of water drag.
Hi nivapilot,
I do like your idea and will be fitting it soon. I shouldn't think it will need any form of clamping onto the shafts as the grip is quite nice.
thanks folks
ken