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A telemetrum radio was used as a wireless ignition system. The radio was mounted to a ladder with the igniter leads running into the motor. The telemetrum was put in "fire igniter" mode and activated. The yagi antenna for extended range that was packed didn't have the correct connector, so the stock telemetrum antenna was used. Ignition was achieved on the first attempt, and the motor burned for ten seconds. After the burn, it was discovered that the telemetrum was nowhere to be found. Later analysis of the video showed that the igniter wires had been yanked into the exhaust plume, taking the telemetrum, still connected, with it. Whatever was left of it is probably crispy beyond recognition.
All Most hardware elements of the motor fared well during the burn. The nozzle exit cone showed no evidence of erosion, and the bolt holes showed no deformation. All seals held exactly as intended, with no gas leakage past the first of the two redundant o-rings on either closure. The RTV on the nozzle step was charred, but on the outside of the phenolic liner, the sealant was uncharred. The phenolic liner also held up well and didn't exhibit charring or bubbling on the outside. The aluminum nozzle carrier, barring some cleaning, was in excellent condition. The nozzle insert itself was badly cracked. Post fire actions may have exasperbated existing conditions (Kevin M tried to pull it appart...).
The forward closure was in the same condition as the rest of the hardware. Pictures are below.
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