Nautilus Drydocks R/C Watertight Cylinders

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watertight cylinders

Watertight cylinders (or WTC's as they are often called) are the heart and soul of an R/C submarine. Their main functions are to keep the electronics and battery of your boat dry during operation and to create a means of increasing or decreasing the buoyancy of the model through the use of a ballast system.

COMING SOON!: Our new MSD (Modular SubDrivers). These new SubDrivers will allow exceptionally easy access to the ballast system components, allow for greater flexibility in designing and implementing your ideal ballast/control setup, and simplify installation. Stay tuned for more information!

View or download Cylinder instructions by clicking on the links below:

SubDriver Assembly Photo Gallery

Type VII SubDriver Assembly Video walkthrough

SubDriver SAS ballast system description

Emergency Blow Ballast Sub-System
OTW Dive Modules (3.5 and 4.25" diameters)

New Product!
3.5" OD - Dual Motor-Dual shaft - 33" length - Variable ballast version
Price$605.00
New Product!
3.5" OD - Single Motor-Single shaft - 33" length - Variable ballast version
Price$595.00
2" Diameter EasyDriver - Dual Shaft
Price$375.00
2" Diameter EasyDriver - Single Shaft
Price$325.00
2.5" Diameter Easy Driver - Dual Shaft
Price$325.00
2.5" Diameter Easy Driver - Single Shaft
Price$285.00
3-1/2" Diameter EasyDriver - Dual Shaft
Price$485.00
3-1/2" Diameter EasyDriver - Single Shaft
Price$435.00
Emergency Gas Backup system for all SubDriver units.
Price$75.00
SubDriver - 2" OD - Single shaft - 12" length - Type 212
Regular Price$500.00Sale Price$460.00
SubDriver - 2" OD - Dual shaft - 15.25" length - 1:72 Type VII
Price$520.00
SubDriver - 2" OD - Single shaft - 15" length - 1:144 Seawolf
Price$460.00
SubDriver - 2.5" OD - Single shaft - 1:96 models
Price$520.00
SubDriver - 2.5" OD - Single shaft - 25.5" length - 1:96 Skipjack
Price$520.00
SubDriver - 2.5" OD - Dual shaft - 19" length - 1:72 Type IX
Price$520.00
SubDriver - 2.5" OD - Dual shaft - 25.5" length - 1:72 Gato
Price$575.00
SubDriver - 3" OD - Single shaft - 19.75" length
Price$480.00
SubDriver - 3.5" OD - Single shaft - 20.25" length - 1:72 Skipjack
Price$540.00
3.5" OTW Dive Module - SINGLE SHAFT
Price$1,150.00
3.5" OTW Dive Module - DUAL SHAFT
Price$1,280.00

3.5" OD - Dual Motor-Dual shaft - 33" length - Variable ballast version

3.5" OD - Single Motor-Single shaft - 33" length - Variable ballast version

2" Diameter EasyDriver - Dual Shaft

2" Diameter EasyDriver - Single Shaft

2.5" Diameter Easy Driver - Dual Shaft

2.5" Diameter Easy Driver - Single Shaft

3-1/2" Diameter EasyDriver - Dual Shaft

3-1/2" Diameter EasyDriver - Single Shaft

Emergency Gas Backup system for all SubDriver units.

SubDriver - 2" OD - Single shaft - 12" length - Type 212

SubDriver - 2" OD - Dual shaft - 15.25" length - 1:72 Type VII

SubDriver - 2" OD - Single shaft - 15" length - 1:144 Seawolf

SubDriver - 2.5" OD - Single shaft - 1:96 models

SubDriver - 2.5" OD - Single shaft - 25.5" length - 1:96 Skipjack

SubDriver - 2.5" OD - Dual shaft - 19" length - 1:72 Type IX

SubDriver - 2.5" OD - Dual shaft - 25.5" length - 1:72 Gato

SubDriver - 3" OD - Single shaft - 19.75" length

SubDriver - 3.5" OD - Single shaft - 20.25" length - 1:72 Skipjack

3.5" OTW Dive Module - SINGLE SHAFT

3.5" OTW Dive Module - DUAL SHAFT