Just wondering about an adjustment to the airspeed indicator at the very low end of the scale.
When on the ground with engine running at idle, I typically see about 14 to 18 kts.
My pitot tube is further outboard than Van's standard location so I don't believe it's coming from the prop wash. Granted there may be some wind from the outside environment.
I will check to see what it indicates inside the hangar next time I am there and see if it is closer to zero. If not, whats the recommended procedure to adjust it ? And more importantly, will adjusting it throw off the curve/numbers at the stall speed range ? (don't want to mess with that as it seems to be right on at that speed)