Vertical speed slow?!

[Jonathan Abdoo]

When I first started flying my inspire it had a vertical speed of around 11-12 mph. I never noticed until today, but now it's only getting 6 to 7 mph. Anyone have any idea why?

Also, when I take off full speed the aircraft doesn't seem to want to fly straight. This seems to be worse in certain directions and better in others. Yes, I have calibrated everything. Any suggestions?

 

[Alastair]

When you say "take off at full speed" do you mean vertical take-off or a combination vertical and forward input? If as you say, that all calibrations are correct, one thing that could be causing it is a slight deviation in your stick input. You may think you are pushing the sticks in one direction but you maybe pushing slightly off centre. It doesn't take much. If you go to the RC calibration screen and try various stick inputs, you will see a percentage displayed when you move the sticks in different directions. You may find that your perceived forward push may be off slightly in one direction.