Equations & Methods

Question 1

Ground Speed Calculation

Answer 1

(distance covered/minutes to cover distance) x 60

Question 2

Climb Out Average

Answer 2

Take a flight level 2/3rd’s of the total climb calculated, calculate TAS for this altitude, ensure to add wind vectors

Question 3

1nm in feet

Answer 3

6080ft

Question 4

Speed of the earths rotation

Answer 4

900kts

Question 5

Wind change to top of climb distance

Answer 5

(time to top of climb/60) x amount the wind change was = distance the climb out change is

Question 6

2 aircraft time of passing

Answer 6

distance between aircraft/total combined ground speed = minutes until the aircraft pass each other

Question 7

VOR range at sea level

Answer 7

1.22 x SR(Thousands of feet AC) = VOR Range

Question 8

VOR range above sea level

Answer 8

1.22 x SR(Thousands of feet AC) + 1.22 x SR(Thousands of feet AD)

Question 9

Off Track CP Movement

Answer 9

(Distance to Alternate/TAS) x WV speed

Question 10

LPSD P2 Position

Answer 10

(P1Surpluss/60) x GSOUT = P2 as a position from P1 in NM

Question 11

LPSD Actual Position

Answer 11

(P1Surpluss/P1-P2 ETI Diff) x P1-P2 Nm Diff = Actual LPSD position as a position from P1 position in NM.

Question 12

Distance to AID as a calculation of bearing change

Answer 12

(60xNM from each fix) / Bearing change = NM to the AID

Question 13

Standard CP/ETP

Answer 13

(Nm to destination + GSHOME) / (GSOUT+GSHOME) = Nm from point to CP

Question 14

Standard PNR

Answer 14

(Safe Endurance + GSHOME) / (GSOUT+GSHOME) = Minutes from point to PNR