Formulas

Question 1

Bank angle

Answer 1

15% of airspeed for SRT

Divide airspeed by 10 + half the answer
e.g. 80 knots/10 = 8 + 4 = 12° bank

Rollout of bank ½° of bank angle before desired heading

Question 2

Magnetic compass rollout

Answer 2

+/- Latitude +/-½ bank angle

14° bank angle @ 20° Latitude

Turn to 360° North (Undershoot):
Left turn to 360°: rollout @ 027°
Right turn: rollout @ 333°

Turn to 180° South (Overshoot)
Left turn to 180°: rollout 7° before 160°
Right turn: rollout 7° before 200°

+/-½ bank angle because will always rollout of bank angle before reaching desired heading.
On Southerly turns subtract ½ bank angle after adding 20° overshoot.
UNOS for North or South