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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.
View or download Cylinder instructions by clicking on the links below:
MSD SubDriver Assembly Instructions
MSD SubDriver Operation and Wiring Overview
BLHeli32 User Instructions (ESC for MSD SubDrivers)
Link to BLHeli configuration program download
Original 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)