Lindberg PT Boat
Still not done, but close.
This boat does draw a crowd, I was
concerned when I first put it in the water, the extra weight from the
motors and two 6 cell batteries put it pretty low in the water, the
plastic is not like today's, this is heavy to begin with.
This is the old original, I also have the limited edition that came out
At first I was a
little disappointed in the general condition, then I realized that I was going to remove
all the damaged items weather they were broke or not anyway.
|I removed the top very carefully with an exacto knife (loss a little
blood) and removed everything except the battery holder just in case I could use it, I
didn't so it is gone too.
The drive shafts were unsalvageable, they were seized in the brass stuffing boxes.
I used the original plastic motor plate as a template to make a new one from aluminum. I used two GP thrustmaster T600 motors, these are high torque and high speed motors.
Suggestions on doing your own.
|The drive shafts, 1/8" stainless steal are connected by Traxxas
universal couplers, the two wood blocks are slotted and positioned to make the stuffing
boxes, brass tubes, line up with the motors.
Shown is a micro switch power unit I made, one switch is a cut off switch, as the servo moves releasing that switch it connects the two batteries in parallel sending 7.2 or 8.4 volts to the motors that are wired in series, which divides the volts in half that each motor will receive, this is half speed. When the other switches are opened the batteries switch to "in series" sending 14.4 or 16.8 volts to the motors, this is full speed. See Controls & Wiring
|The picture above is the prime coat, a lot of work has been done on the
deck, I filled the two openings on the back, originally they were for access to the
The deck and hull is secured together with screws, I filled the seam with wood glue as a filler and sanded the edges smooth, the deck can still be removed.
|I download a lot of pictures of the real PT boats and made the front 50 cal cage from heavy wire bent and soldered together. The armaments were ordered from HR Products, they are cast from a soft metal with a lot of flash that I removed with jewelers files, they also require assembly, I did not use glue, but carefully melted the parts together with solder. The back deck gun is a 20mm Oerlikon, the barrel was so thin it dropped from it's own weight, I made a new one from brass tapered down by putting it in a drill and using sand paper, I had to make the mounting bracket. The two Twin 50 Cal. Machine Guns require swivel bases that I mad from heavy wire. The original PT109 had a 37mm gun on the front deck, I will be making it from scratch.|
The plastic mast that came with the boat was broke, I used it as a template to make one from brass, the support brace was designed from pictures of the real boat. The real boat had a large bulb at the top of the mast which was the radar unit. I decided to just add a working light.
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