Rules of Thumb

Question 1

Relationship IAS /TAS

Answer 1

4*Altitude (thousands) + IAS = TAS

Question 2

Mach Airspeed relationship

Answer 2

Mach * 600 = TAS
MACH = MPM

Question 3

Ground speed checks

Answer 3

Distance (1 min) *60
Distance (36 sec) *100

Question 4

Drift correction

Answer 4

90 degrees max drift angle = Wind speed*60/TAS or Wind speed/MPM

Question 5

Altitude correction

Answer 5

2*Altitude Correction = Rate of climb/Descent
Lead for level off = 10% rate of climb/Descent

Question 6

TAS/Pitch relationship

Answer 6

Normal Cruise Bar width = 1000 fpm (300K TAS)
Bar width = approx. 2 deg

Question 7

Rate Turns

Answer 7

Bank angle for std rate = TAS/10 + 7
Bank angle for 1/2 std rate = TAS/20 + 7