|Frequently Asked Questions|
|14. Can I put a wireless video camera in my submarine?|
Not effectively. Most wireless micro video cameras operate in the 1 or 2 GHz radio rage. This frequency is too high to readily penetrate water. In other words the antenna must be above the water at all times to receive a signal from the camera. These systems are ideal for cars, boats or aircraft, because they were designed for these kinds of applications. While there has been some “experimentation” with adapting these systems to model submarines, the majority of these systems are limited to surface operation only .
|15. Can I use a brushless motor in my submarine?|
|You can not use a brushless motor in the majority of model submarines because their controllers are not set up to operate in reverse. Also, the RPM on these motors is too high for use in model submarines, even with the use of a drive reduction. In addition, brushless motors and the special speed controls they require are noticeably more expensive then their brushed counterparts.|
|16. I've heard a lot about Li-Po batteries, can I use them in my submarine?|
Li-Po batteries, while providing very high power to weight ratios are extremely sensitive to over charging and discharging as well as being very delicate (structurally). Li-Po batteries require special charging and balancing stations to avoid the danger of explosion and fire. Another drawback is their need to have voltage limiters built into the speed controls attached to them. These speed controls limit the low voltage on each cell in the battery to around 3.2 volts per cell. Drawing Li-Po batteries down below this point will cause permanent damage to the battery pack. Normally, R/C submarines are low amperage draw models; therefore the need for a high output battery does not apply the same way it would in a model aircraft. The drawbacks to these batteries out weigh the advantages.