Scratch built to 1/24th scale based on an 1/72nd Airfix kit, at first due to weight worries dropped the torpedos, finished as a gun boat, Main Gun is 1/72nd Airfix 5 pounder, minus wheels and trailer Arms, have squeezed in two motors running contra-rotating props and 20 volts worth of batteries, a bit of a squeeze, only way to get any speed out of her, (had too smile when I read in a Model boat letter page, that the writer was proud at squeezing a motor and 7.2volt battery in a similar sized MTB), by then I'd changed motors to higher revving motors, repositioning bow strakes (to stop bow digging in), and moving battery to rear now on only 7.2volts achieved better speed and endurance. Just recently after 5th Nov (2013) whilst out walking the dog, came across 2 plastic rocket launcher tubes, soon adapted as the missing Torpedo launchers, with little weight penalty.