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The WTC is a Lexan tube capped at each end and divided internally with cast resin
bulkheads as it provides the only dry-space within the model. In these
spaces you would mount the receiver, servos, speed controller, motor and
other electronics and devices* that need to be kept dry. There is a dry
space forward, where the rechargeable battery (same type as used by the
r/c car crowd) is accessed, and a dry space aft, where most of the other
goodies are kept.
This 3"
diameter watertight cylinder contains everything needed to propel and
control most wet-hull type R/C submarines measuring between 30" and 45"
in length. The WTC arrives with all ballast and propulsion elements
installed and tested for correct operation and watertight integrity.
Though recommended for use with 4-channel equipment (using only two
standard sized servos), the WTC-3 can accommodate a 5-channel system if
mini or micro sized servos are used.
The forward dry space of the WTC-3 houses the battery and speed
controller, which are accessed through the forward watertight bulkhead.
The center area of the WTC is the ballast tank with a reserve buoyancy
of 12 ounces. The installed on-board bottle holds enough Propel for 15
blow/vent cycles between charges. The gas-type ballast system includes
an installed servo and `gas-saver' mechanism, which acts to prevent
wasting Propel overboard when the tank is dry. The after dry section
contains the control and propulsion elements, all accessed through the
removable motor bulkhead. The installed
Graupner 400, 7 Volt motor drives, through a 3:1 gear reduction unit,
the single output shaft. Simple push rod and propulsion shaft connectors
between the WTC and models drive and control surface linkages make for
very quick installation and removal of the entire WTC package from the
hull. The WTC-3 can be removed or installed within a hull in only
seconds. Easy access to the internal items within the WTC makes for
quick adjustment or repair at the lake. *(sold
separately)
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