Gauges and Dials
25th Jan 2018, 20:31
An aircraft is in a coordinated turn.
The slip indicator right in the center of the cockpit has the ball right in the middle. A yaw string taped to the windscreen is blowing straight up.
Over the course of the turn, the outside wingtip flies further than the cockpit, which in turn flies further than the inside wingtip. The airspeed at the outside wingtip is faster, and the airspeed at the inside wingtip is slower. But all three are at the same bank angle.
Are they all in coordinated flight? What would a piece of yarn tied to the wingtip (or a slip indicator attached to the wingtip) show?
For a somewhat extreme example, think about a glider with a 50 foot wingspan flying 50 knots, circling in a thermal at a 60 degree bank.
Ignore dihedral. Write neatly; show your work; explain your answer. 15 points total.
The slip indicator right in the center of the cockpit has the ball right in the middle. A yaw string taped to the windscreen is blowing straight up.
Over the course of the turn, the outside wingtip flies further than the cockpit, which in turn flies further than the inside wingtip. The airspeed at the outside wingtip is faster, and the airspeed at the inside wingtip is slower. But all three are at the same bank angle.
Are they all in coordinated flight? What would a piece of yarn tied to the wingtip (or a slip indicator attached to the wingtip) show?
For a somewhat extreme example, think about a glider with a 50 foot wingspan flying 50 knots, circling in a thermal at a 60 degree bank.
Ignore dihedral. Write neatly; show your work; explain your answer. 15 points total.