R/C Tank Combat

Tank #T039

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Type: Comet Armament: 77mm
Built: September 2005 Armor: 102mm
Builder: John Pittelli Rating: 40/4
Status: Operational Battles: 26
Owner: Marty Hayes Points Earned: 48,609
Call Sign: Invictus Points Given: 40,000
  • Uses same rotate mechanism as Navarone One
  • Modular design

  • Click Photo For Enlargement (170 Kb)
    Upper deck and turret are easily removed from the chassis. This allows for easy access to the interior. Two bolts attach the turret system to the deck, four screws attach the deck to the chassis.

    Here is the turret waiting to be installed onto the deck. The geared turret motor is attached directly to the main board. Base of turret is then bolted to the motor with a 12" ball bearing lazy susan sandwiched in between.

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    Ammo feed is a simple tray sloped from rear to front. The 90 degree copper elbow angles down to feed the gun. Just below that is the elevate assembly. This is the servo multiplier made by Servo City. This is connected to 2 arms to allow easy raising and lowering of the gun. To fire the gun is a simple ball bearing servo. The giant open section contains the 12oz CO2 with a macro line swivel attached, no strain on the fittings. Rear hatch is hinged and has a simple tongue and slot lock. This allows for quick reloading during battle.

    Two 4" fans provide direct cooling to the EV Warriors. There is a vent above them in the upper deck to allow cool air to be brought in to the engine bay. The rear of the upper deck has vents to release warmer air. Both vents use metal gutter leaf guard material, sandwiched with plastic window screening, to keep out debris.

    Next are the relays which are mounted onto the transmission supports. If you look closely at the corners you will see the mounting bolts used for the 24 volt power feed.


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    Rest of the controller resides in the front of the Comet. Here you see the second receiver and its power supply. Not visible on the right side of the board are the diodes for mixing the throttle and steering controls.

    Battery compartment holds two 26AH 12v batteries. Top center shows the mounting bolts for the 12 volt power leads that control the relays, fans, and turret rotate motor. The large white connectors can handle 50 amps and support up to 6 gauge wire (or doubled-up 10 gauge).

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    Actual Comets had a canvas protective cover on the gun mantle. I used some material scavenged from a convertible top. Water repellent and paint repellent. The bolt heads are part of the tensioning system.

    Raised section directly behind the turret is the air vent for the fans. At the rear you can see the mesh area that allows for the warm air to exhaust. The chassis and upper deck are built from 1/4" luan, with fiberglass mat and cloth, which adds tremendous strength with less weight. Paint is Krylon for plastics; dries hard, fast and totally withstands paintball goo.

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    May 2006: The Comet's turret layout is much simpler than the previous version, showing lots of lessons learned. A simple wooden try serves paintballs without a problem (gravity is everywhere) and a $3 door lock actuator fires the marker every time. A 12oz CO2 bottle provides lots of firing time and a mechanical servo multiplier provides plenty of elevate power.

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