Hi Mark
Yes I still have the cat,I once told my wife and daughter it was that stupid cat or me,they
wanted to know where to forward my mail to!
Anyway I got some pictures of my boat running did'nt come out that good and conditions were
terrible really windy and thunder and lightning so I had to make it quick
Here's what I used for radio eqipement and running gear

Mini servo for the steering mounted on it's side
Speed control is a Mini-con 4 from Hunter Systems in England, Proportional forward and reverse
The receiver is a standard Futaba 2 channel
I don't know what the motor is or where it came from It was given to me
I'm using 4 AA NiNH 2100 mah batteries
The U-joint is from Graupner and I had to sleeve that with brass tube to get it to work
The stuffing tube and prop shaft are home made as is the rudder
The Prop is a 20 mm Graupner

In the Photo's the boat is running about half speed,on smooth water at full speed the bow
wave comes up to just below the torpedo tube ramps in front of the door's.