Originally Posted by nerv
is the flutter caused by the elevator servos not having enough support or the elevator structure itself? I don't think my Spark is ever going to reach that speed level, but I'm curious to know. Thanks
Hi Nerv, it looked like the servos I used (Hyperion) had some play in the gear train. It did not appear that excessive to me but I guess at those speeds the play can turn into an oscillation depending on the resonance frequency of the system. Putting in the outrigger bearing was probably not necessary with the MKS servos but it does add additional stiffness so I went with it.