These cylinders are now being offered in partnership with R&R Model Engineering.
Features:
- 80mm diameter (3.15")
- 500mm length (20")
- Brushed motor propulsion with optional brushless motor upgrade
- Two metal gear servos with optional additional two servos for bow planes/retracts/torpedoes
- Water pump ballast system with 750mL capacity
- Single shaft outputs with optional dual shaft upgrade
- Magnetic linkage connectors
The Nautilus Drydocks variant of this product differs from the standard offering from R&R in that we include the following over the standard unit:
- Electronic Speed Controllers for both water pump and main drive motor
- Full pre-wire with all connections and wire runs installed
- AD2 electronic pitch controller
- Full function test and waterproof integrity check
- Just install your radio receiver, install your battery, and you're done!
Please allow 4 to 6 weeks for fabrication, assembly and testing of these cylinders.
80mm Diameter Watertight Cylinder
The ballast system for these systems is an ingenious and simple configuration that offers full static diving capability without the need for high-current pumps and solenoid valves.
To dive, the water pump fills the ballast tank, and the air that is displaced is vented out of the model through the snorkel valve, leaving a small amount of residual air in the tank.
To surface, the pump reverses, but the snorkel valve does not allow water to flow through the air intake. A partial vacuum is created in the ballast tank as the water in it is evacuated, expanding the air pocket and resulting in positive buoyancy. When the snorkel breaches the surface, it opens and air pressure is equalized, pumping the remainder of the ballast tank dry at ambient pressure, greatly reducing current draw and pump times.