ORIGINAL: frenchdoor
.. so it does not go with the risk of hitting your fingers.... I ask because the needle seems to be close to the prop.. very very close haha
Frenchdoor:
At the beginning, I was very intimidated by the propeller rotating next to the valve.
My instructor taught me how to do it safely, always from behind the propeller, standing on the left side of the fuselage, with my left hand, while holding the model in place with my right hand.
Since then, I had no problem adjusting the valve next to the spinning knife, ........which I never disrespect.
The only real risk is to become overconfident and careless while doing this everyday action.
All very good advices above!