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May 12, 2008, 02:56 AM
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Carbon blade crisis


Results have been pretty terrible with the carbon blades. They seem noisier than plastic & transmit more vibration. Carbons chopping their own air causes more noise & position oscillation than plastic.

Vibration modes show up in accelerometer bias. Everything is stable, then suddenly a roll to port. Got good lighting, however. Had remarkably stable air on the hill.

Found a bug where altitude error was being used to derive horizontal velocity.

Another bug in CHDK causes it to take only 1 shot every 10 seconds using the shutter wire. The workaround is to take several shots using the shutter button & then use the wire.
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