Sorry guys forgot I got this from Antoine earlier on via email:
The technical summary about your model :
The model works with compressed air. You will have to fill the air tanks with the included compressor, and with the help of the onboard manometers you will fill at 8 bars max the 2 tanks. You'll get enough air to run your boat confortably.
All the diving system works with electronic valves, each one needs to be fed with 12V, when they are connected to the electric system, they will open, when they are off, they are closed.
The ballast tank is connected to 4 valves, 2 to dive and 2 to surface. Why 2 ?? Because it will add precision for the diving and surfacing ; if you had only 1 valve you could not precisely trim the submarine to get a neutral buoyancy.
How to do ? To dive, you first need to open the 2 valves and when the deck is awashed, you closed one to dive slowly. Same for surfacing, you first open 1 valve to avoid bumping out of the water like a buoy...when the sail surfaced you can finish to blow the ballast tank with the second valve.
Except this particular system, you'll need a conventionnal radio system with free channels :
one channel (or two if you want separate motor control) for the motors
one channel for the rudder
one channel for the rear diving planes
(optional) one channel for the bow planes retractable mechanism (in and out)
(optional) one channel for the bow planes (up and down)
2 channels to surface
2 channels to dive
The 4 channels for the diving system only need to be on/off channel (not proportionnal).
The option of the bow planes is really nice, the mechanism and bow planes is of course included (custom made by Scaleships)
So the best is to get a radio system that have 4 proportionnal channels and 4 on/off channels (5 is better if you want the bow planes working). Graupner, Robbe (Futaba) have such radio on the market.
Finally, you'll need a classic battery charger. The battery included with your sub are NiMh type (12V).
Any help folks?