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I am selling a custom cylinder I made a few years ago as an experiment with the pressurized water ballast system like OTW uses.
The cylinder is new and has never been installed in a boat.
I designed and built it to install in a large single prop hull.
(Or twin prop with outboard gearbox)
Everything is all top quality and built to last.
A lot of machining time and money was spent on the build.
The size is 4"x 29", and is in three sections.
Front section has the ballast pump, valve, and front linkage servo.
The center section is the ballast tank.
The rear section has the drive motor, ESC, receiver, ballast control circuit, and two rear linkage servos.
The weight is 6 LBS 10 OZ
The ballast lift is 46 OZ.
The Lexan is 1/8" thickness.
The drive motor is a Maxon used in medical equipment which I geared up 2/1 with a quiet belt drive system. The motor is stainless steel and built to last forever.
The drive system has enough power to swing almost any sized prop.
The shaft is 3/16" and dual bearing supported.
There are three full sized servos used to control the output linkages, two in the rear and one in the front.
The ballast system as talked about earlier is a pressurized water type.
There is a pump and valve that run the system. Activating the dive control opens the valve and turns on the pump to start filling the ballast section.
At any point you stop activating the dive command the pump shuts off and the valve closes holding the water inside under pressure.
When you activate the surface command the valve opens and the pump starts in the other direction emptying the ballast section of water.
The ballast section has a series of baffles mounted inside to keep the water from sloshing around and effecting the trim.
A missing pulse detector is also in the circuit to activate the surface command if the transmitter signal is lost.
This cylinder has been tested and works flawlessly.
It is designed to operate on 12 volts.
I know I will never install the cylinder in a hull so I have decided to sell it.
It was more the challenge for me in designing and getting it working.
I had stored the cylinder apart and just finished re-assembling and testing.
This cylinder will be sold RTR with all the RC systems installed and needs only a transmitter to operate. Includes servos, ESC, ballast control circuit, and even a Novak Xxtra 5 CH synthesized receiver which will work with any 75 MHZ transmitter.
Remember keep in mind this is designed for larger hulls like a big Disney Nautilus or Loyalhanna Type 26.
I would say if it does fit it should work. But please take this into consideration.
I am asking $875 plus shipping.
If you have any questions please contact me
The cylinder is new and has never been installed in a boat.
I designed and built it to install in a large single prop hull.
(Or twin prop with outboard gearbox)
Everything is all top quality and built to last.
A lot of machining time and money was spent on the build.
The size is 4"x 29", and is in three sections.
Front section has the ballast pump, valve, and front linkage servo.
The center section is the ballast tank.
The rear section has the drive motor, ESC, receiver, ballast control circuit, and two rear linkage servos.
The weight is 6 LBS 10 OZ
The ballast lift is 46 OZ.
The Lexan is 1/8" thickness.
The drive motor is a Maxon used in medical equipment which I geared up 2/1 with a quiet belt drive system. The motor is stainless steel and built to last forever.
The drive system has enough power to swing almost any sized prop.
The shaft is 3/16" and dual bearing supported.
There are three full sized servos used to control the output linkages, two in the rear and one in the front.
The ballast system as talked about earlier is a pressurized water type.
There is a pump and valve that run the system. Activating the dive control opens the valve and turns on the pump to start filling the ballast section.
At any point you stop activating the dive command the pump shuts off and the valve closes holding the water inside under pressure.
When you activate the surface command the valve opens and the pump starts in the other direction emptying the ballast section of water.
The ballast section has a series of baffles mounted inside to keep the water from sloshing around and effecting the trim.
A missing pulse detector is also in the circuit to activate the surface command if the transmitter signal is lost.
This cylinder has been tested and works flawlessly.
It is designed to operate on 12 volts.
I know I will never install the cylinder in a hull so I have decided to sell it.
It was more the challenge for me in designing and getting it working.
I had stored the cylinder apart and just finished re-assembling and testing.
This cylinder will be sold RTR with all the RC systems installed and needs only a transmitter to operate. Includes servos, ESC, ballast control circuit, and even a Novak Xxtra 5 CH synthesized receiver which will work with any 75 MHZ transmitter.
Remember keep in mind this is designed for larger hulls like a big Disney Nautilus or Loyalhanna Type 26.
I would say if it does fit it should work. But please take this into consideration.
I am asking $875 plus shipping.
If you have any questions please contact me
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