Originally Posted by Vfrpilotpb
If I mighet be so bold to ask, Why do you have two slip and turn indicators and why are the wings not agreeing with the AH, genuine question, not cheek !
PeterR-B
Vfr
As I understand it the turn and slip indicator are to different observations. The ball (slip) indicates where the gravitational force is acting on the aircraft (including an acceleration forces). The turn indicator shows the rate of turn irrespective of aircraft attitude and generated by its own giro. The artificial horizon does exactly as it says, a representation of where the horizon is in relation to the aircraft. The photograph shows the aircraft banking to the right (artificial horizon) and turning to the right (turn indicator) the ball is slightly off centre which is probably due to the aircraft tending to fly slightly less skid low when the tell-tales are indicating a coordinated turn.
This is a slightly simplified explanation and stand to be corrected as only a humble PPL(H)
P.S. there are many examples in nature where two balls seem appropriate!
PP