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These cylinders are now being offered in partnership with R&R Model Engineering. These units are an excellent choice for larger models, and offer the added flexibility and features available from true twin tank ballast setup. Properly set up, individual control over each tank is possible for precised control of not only buoyancy, but overall model trim as well.

Features: 

  • Polycarbonate tubing throughout

  • Pressure Cast polyester end caps 

  • Main cylinder 100mm Dia x 500mm Long.

  • Ballast Tanks x2 70mm dia x 150mm Long 

  • Each tank holds 1/2 litre of water giving 1 litre total.

  • Total Displacement Surfaced 3.9kg

  • Total Displacement Submerged 2.9kg 

  • X One 540 Motor Single Shaft Version

  • X Two 385 Motors Twin Shaft Version

  • 3 Metal Geared Servos for Rudder and Dive Planes

 

  • 3 Pushrods with  Kwik Klip Magnetic Connector
  • 2 Water Pumps
  • 10 plug in terminal blocks for wiring and servo connection
  • On / Off push button switch

 

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 pumps and main drive motors
  • 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. 

100mm Diameter Dual Tank Watertight Cylinder

PriceFrom $740.00
  • 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. 
     

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