Cockpit Math Formulas

Question 1

Pitch change basic rule

Answer 1

1 degree = 100ft/nm

Question 2

TAS in kts/nm

Answer 2

TAS/60= kts/nm

Question 3

VDP

Answer 3

Minimums/descent angle in hundereds of feet
example: 300mda and 3 degree GS
300/300=1nm

Question 4

Lead turns over a vor

Answer 4

TAS/60-2= and if its over a vor you must consider your height above it as well.

Question 5

Lead Turns for a speed 150kts or less?

Answer 5

1/2 nm

Question 6

Lead Turns on radial from arcs(in degrees)

Answer 6

TAS/60-2=x ,60/arc dme=y, x times y= degrees to begin lead turn

Question 7

Standard Rate Bank angle

Answer 7

(TAS/10)+5=

Question 8

TAS to IAS 5kts method

Answer 8

TAS=IAS+(5kts x per 1000ft)

Question 9

TAS to IAS FL/2 method

Answer 9

TAS=IAS+(FL/2)

Question 10

TAS to IAS 2% method

Answer 10

TAS= IAS+(.02xper 1000ft)(IAS)

Question 11

Wind Corrections for descents

Answer 11

60kts of wind= 1 degree pitch change
headwind=nose up
Tailwind=nose down

Question 12

Distance to slow down

Answer 12

10KIAS= 1nm

Question 13

Descents

Answer 13

Altitude to lose/descent angle

Example: 10000ft to lose at a 5 degree descent angle

10000/500=20nm to descend