"george and Sebastion It does actually matter which orientation the ublox antenna is pointing. The radiation pattern is actually a hemisphere. This information can be found on the antenna manufacturers website as follows:…"

"How about you try reducing the P value so that it doesn't have enough oomph to start the oscillations"

"The winglet adding to the stability of the craft is not really due to the aerodynamic effects, but rather the increased moment of inertia from the extra mass out at the tip. I worked on the monocopter at Embry-Riddle and we found this out through…"

"That is the most worthless post!  Why don't you try and list actual specs for the sensor."