Hello Peter, thanks for the welcome.
Yes, I have set the boat up with independant control on each prop and now I've sailed it the boat does indeed spin on the spot.
Here are a few more pictures for you.
Inside of boat showing fixing of the towing bollards.
First coat of primer.
Deck painting
Masking off for painting inside bulwarks.
This is a jig I made for soldering the railings together, I did this for all of the railings, soldering makes them so much stronger.
Nearly ready for maiden voyage.
Found that DC was a bit down at the bow, added 400g of lead to the stern which helped.
This was taken in the new year after the superstucture and crane had been finished and painted.
Engine room, battery is to power bow thruster, which is controlled by micro switches on a servo.