and could not obtain anywhere near those speeds if converted to radio control. Combat A competitive offshoot of the radio control model warships hobby that involves the firing of projectiles, usually propelled by gas, at opposing ships to sink or damage them. Models are usually simplified to facilitate repair. Ships are fitted with bilge pumps; bb, 3/16", 7/32" or 1/4" weapons that fire ball bearings. The ship's hull plating is balsa to keep the force required to penetrate down to safe levels, by Rules, they are designed to be sinkable and in fact they do on a regular basis. Tugboats Scale model tug boats are often built to include scale drive systems. They use standard propellers and rudder(s), Becker rudders, Kort nozzles, steerable kort nozzles, Z-drives or Voith-Schneider cycloidial drives. Clubs will often host maneuvering competitions where participants are tasked to run their boats in the most realistic manner possible. This can be judged with or without a "tow" or barge attached. Model Tug boats were often used for filming on three shows. TUGS, Thomas & Friends and Theodore Tugboat in which they had moving eyes and as for TUGS moving heads. See also Model warship combat Ship model External links International One Metre - International Class Association - A popular class of radio-controlled sailing boat International Sailing Federation - Radio Sailing Division - Rules and regulations for the international radio sailing classes Boat Model boats Sailing