T9x with er9x YAW drift

[jhsa]

Gyros do get affected by temperature changes.. try this. put the copter outside for about 15 minutes and then fly..

[Corruptsector]

Ok will do. Do you think the temp of the wind blowing over the gyro will cool it even more? How sensitive are they to temp?

[skelator]

finally fixed this juat by cleaning the pot using contact cleaner spray, was a lucky shot as someone on youtube suggested me so so far been stable!

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[gohsthb]

I started out using hk401b's on my helicopters. They are piezo type gyros, and are affected much more by temperature. I switched to mems type gyros. Now unless there is a significant temperature change they don't drift. The type of gyro was never listed, maybe you just need to switch to a mems type gyro.
-Gohst

[kaos]

gyro IS sensitive to temperature change (especially piezo gyro), I normally set my heli at the place where I am going to fly for 10-15 min before I start flying. Mems gyro is better in that regard. If are in a warm room, I would leave the heli out for a few minutes before I power on the heli and fly.