Harry,
thanks for the report on these. I am going for the lubricatable CNC one. Most use the more obviously flexi drive one, which can also be bought from TFL in Germany or Offshore electrics in America, both of whom do spare drives, bearings, etc. The steering on 152VO boats has to be through cable and pullies, like the real boats. It's the rules!
I was very impressed by the Hornet tunnel performance with this motor.
All the 152VO boats are very accurate wooden models of original (mainly American) kneeler hydros of between 1924 and 1960. They have to have period dressed plausible driver figures with life vests and helmets. All boats have to have their numbers added up (kV, batteries, prop size and pitch and must not exceed a certain number) so there is flexibility, but no piling up the cells or the kV and it makes everyone work for evenness. A fantastic race class that has taken Europe by storm, but no doubt will be lost on boring British model boaters.
Check out the website and struggle with google translators! 152VO – Vintage Outboard Racing im Maßstab 1:5,2 ® Cheers,
Martin