Hi Bob'n'Bob,
The prop is a bog-standard Raboesch jobbie - I don't recall there being an option for pitch, only for diameter, though it is intended for scale use. It does seem to match the pitch of the white metal one provided in the kit. TBH, I haven't had the thing in the water yet, I was concerned, however with the noise and vibration intrinsic in the motor.
Nice build, Bob, I'm not quite up to scratch building something like that yet.....maybe one day.
I have used the MFA/Como motors in Aziz, but they do seem very noisy, which was why I was looking for something ball-raced and possibly direct drive - preferably slower revving too.
Wom