Friday, June 30, 2006

Radio-controlled sailing model | Radio

Radio system. Two-channel control is the minimum, while models requiring multi-channel (up to seven) may be too difficult for many skippers to cope with. Be sure that the control system includes the sail winch when you price things out. While you can save some cost by purchasing dry battery system, the initial cost of a rechargeable battery is more than paid for if you sail frequently and want the ability to have fresh batteries each time.

Within the hull space are: a standard radio-controlled receiver, batteries for the receiver, a sail winch for trimming the sails, batteries for the sail winch, and the two or more servo mechanisms which steer the boat and control the winch. Rechargeable batteries are in order, since the typical operation span of most systems is about one day's racing or two hours' continuous operation. Dry batteries have the disadvantage of needing frequent replacement (they are not rechargeable) but they offer the advantage of giving some warning that they are getting low since they drop slowly in voltage as they discharge. NiCds, although rechargeable, do drop suddenly in voltage once they get on the edge of discharge.

One of the most common problems the model skipper encounters is the loss of battery power while his model is out on the pond. Very often what appears to be outside interference to the radio turns out to be low batteries in the radio-control system which causes the receiver to act weird.