That is a nice shot. Model tunnel boats, especially the newer designs, will turn both right and left. However, they corner better to the right because of prop torque.
And he went bezerk as his engine kept running an running and running. Think he got bored of turning right. The actual reason was people were standing in the water retrieving their boats with fishing poles so he had to make a left turn.
I've been using it for about a year now and works great. I also tried the lightned flywheel Antoine send me, it that ran fine for about half a tank, than (as Gene predicted) the connection rod broke.