Just getting the confidence to move from the hover to circuits and all seems to be going well. However I notice that when flying into wind the raptor seems to be a bit unstable in the elevator trim.

When it seems to be trimmed OK then next circuit could cause the heli to climb or decend this all with the same throttle setting.

Is it anything to do with the head speed or is it just a matter of continuing to work with the trim.

If it was an aircraft doing the same I could check balance, downthrust etc, but this is a totally different animal as you all know.