E6b Flight Computer Exercises -

Exercise 14 – Compass Heading from True Heading
Given: True heading = 111°, Variation = 8° W, Deviation = +2°.
Find: Compass heading.

Answer: 121° (West variation is best, so add; then add deviation)

Exercise 15 – Off-Course Correction
Given: Planned to fly 150 NM. After 60 NM, you are 5 NM left of course.
Find: Correction angle to reach destination. e6b flight computer exercises

Method: Use 60-to-1 rule on E6B.
Answer: 5° right

Exercise 16 – Density Altitude
Given: Pressure altitude = 5,000 ft, OAT = +25°C.
Find: Density altitude. Exercise 14 – Compass Heading from True Heading

Answer: ≈ 7,500 ft (use E6B’s density altitude window)


Because the slide rule does not show decimal points, you must estimate magnitude. Answer: 121° (West variation is best, so add;

Density altitude kills performance. These exercises force you to calibrate your thinking from indicated to true airspeed.

  • Answer: Approximately 7,700 feet. (Your plane will take off like it is at 7,700 ft, not 5,500 ft—a massive performance loss).