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G-Wiz HCX 18 Mounting the Flight Computer The flight computer must be mounted in the correct orientation to operate. It will NOT operate otherwise. The “nose” end is indicated on the board, but to confirm the orientation, the terminal block should to be at the rear, or aft end (the nose end is also indicated in photo 1). The computer should be mounted lengthwise with the axis of the rocket. It’s designed to be mounted with 4-40 hardware. The computer must also be protected from the ejection gasses. Ejection gasses are corrosive and will damage the flight computer, voiding your warranty. If you are mounting to carbon fiber airframes be certain the shunt plug doesn’t ground to the carbon fiber airframe, as carbon conducts electricity. See the following pictures to confirm the orientation for mounting. Nose end up