How do model submarines submerge?
Model submarines use 2 different methods to submerge. The first is called dynamic diving. This means that the model is always slightly buoyant and behaves much like a normal surface model. The model is driven underwater by applying full throttle and angling down on the dive planes. The advantage to this kind of model is that if you stop the motor it will raise quickly to the surface. On the other hand, the model must be operated a high speeds in order to keep it underwater. The second method is called static diving. Model submarines that use this method are equipped with ballast tanks. The use of a ballast tank allows the operator to change the amount of buoyancy in the model. Ballast systems in model submarines use either compressed gas or pumps. Compressed gas is the most common system used in model submarines. In the case of a compressed gas system, a small supply of gas is carried onboard the model and is used to expel the water from the ballast tank. In the case of a pump system,
