First time I saw the bicopters in Avatar I knew I had to build one, some day. That day has now come. Together with Chad from flitetest we created our take on the dreamed up copter.
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Brass tube bent for the dihedral of the motors
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Carbon fiber tubes that will act like bushings for the rotating arms.
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Square carbon tubes with a round inside diameter that perfectly fits on the carbon tubes.
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I sawed of two small pieces and glued them to the base to act as stops and reduce the friction of the rotating carbon arms.
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Servo horns mounted
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Servos mounted along with the string that holds the arms together, preventing them from sliding apart.
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Motor mounts.
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Motor in place.
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Plywood plate to mount the KK board.
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HK-KK board flashed with the ”Power tower” software.
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Prototype done. It hovers quite nice but pendulums when you pilot it incorrectly.
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Changed to Hobbyking MI servos for better control.
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Trimmed in and ready for the body. This is where Chad comes into the picture.
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Shroud made from depron.
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Cockpit made from dollar tree foam.
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The body taking shape.

Body painted.
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Attaching the electronics.
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Shrouds in place
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Lots of hotglue.
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Tail fins in place. Not much left now.
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Almost ready. Just need some guns. However I didn’t take any pictures after this point and you just have to watch the video to see more:


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