Appendix 4.A: Tolerances

APPENDIX 4.A

Tolerances

General

Final exam

80%

Pulling/Plotting Lat/Long

+/- 1 minute

Measure Direction

+/- 1 degree

Measuring Distance

+/- nautical mile

CR 3

FRONT SIDE

Time

+/- one unit on logarithmic scale*

Speeds

Groundspeed

+/- one unit on logarithmic scale*

True Airspeed

+/- 2 knots

Mach #

+/- .01

Distance

+/- one unit on logarithmic scale*

Fuel Flow

+/- one unit on logarithmic scale*

Fuel Quantity

+/- one unit on logarithmic scale*

BACK SIDE

Headwind/Tailwind Comp If wind velocity < 71 knots +/- 3 knots

If wind velocity < 70 knots +/- 5 knots

Crosswind Components

If wind velocity < 71 knots +/- 3 knots

If wind velocity < 70 knots +/- 5 knots

In-flight Winds

If wind velocity < 71 knots +/- 3 and 3 knots

If wind velocity < 70 knots +/- 5 and 5 knots

Mission Planning/Jet Log EFR

Problem specific. Each problem takes into account each individual skill

required to perform the task. Every skill has a tolerance which creates a

pyramid of possible answers. Using the pyramid enables us to ensure if

you are within the tolerances for each individual skill, you will be within the

tolerances for the final EFR calculation!

*+/- 1 unit on logarithmic scale is based on the distance per tick-mark on the 10

to 15 section of the CR-3. This equates to approximately +/- 1%.

4.A-171