E6b Flight Computer Exercises Better May 2026

E6B flight computer , often called the "whiz wheel," is a manual circular slide rule used by pilots for vital navigation calculations. To master it, you can use structured practice workbooks or interactive online simulators that offer randomized quizzes. The Whiz Wheel's Warning: A Story

The cockpit of the Cessna 172 felt smaller as the sun dipped toward the horizon. Elias checked his iPad—dead. The backup battery? Left on the charger in the FBO. Suddenly, the "magic" of digital flight planning vanished, replaced by the silent hum of the engine and the creeping realization that he didn't know his exact groundspeed.

He reached into his flight bag and pulled out the metal E6B his instructor had forced him to buy. It felt like a relic from another era. "Speed, distance, time,"

he whispered, recalling the rhythmic exercises from his workbook. Setting the Index

: He rotated the inner scale until the "60" (the rate index) aligned with his estimated groundspeed of 110 knots on the outer scale. Reading the Distance

: He looked for his remaining distance, 45 nautical miles, on the outer ring. Finding the Time e6b flight computer exercises better

: Directly across from 45, the inner ring showed 24.5 minutes.

Part 2: The Calculator Side (Slide Rule Face)

Exercise 4: True Airspeed (TAS) Calculation You are flying at an indicated altitude of 8,000 feet. The outside air temperature (OAT) is +4°C. Your Indicated Airspeed (IAS) is 145 knots. (Assume calibrated airspeed equals indicated airspeed).

  • Find: Your True Airspeed (TAS).

Exercise 5: Density Altitude You are departing from a high-altitude airport. The field elevation is 5,500 feet. The current altimeter setting is standard (29.92), and the temperature is a blistering 35°C.

  • Find: The Density Altitude.

Exercise 6: Fuel Consumption Your aircraft has a fuel burn rate of 12 gallons per hour (GPH). You have a total usable fuel quantity of 50 gallons. You require a 30-minute reserve (6 gallons).

  • Find: How many minutes of flight time do you have before you hit your reserve fuel?

Exercise 7: True Airspeed via Mach Number (Advanced) You are flying at FL350 (35,000 ft pressure altitude). The OAT is -55°C. Your Mach meter reads 0.78 M. E6B flight computer , often called the "whiz

  • Find: Your True Airspeed in knots.

Part 1: The Computer Side (The Slide Rule)

This side handles multiplication, division, ratios, and unit conversions. The biggest hurdle for students is reading the values correctly.

Part 3: Integrated Flight Planning

Exercise 8: The Full Leg You are planning a VFR flight segment.

  • Distance: 85 nautical miles.

  • True Course: 210°.

  • Winds: 240° at 20 knots.

  • True Airspeed: 130 knots.

  • Fuel Burn: 10 GPH.

  • Variation: 12° East.

  • Find:

    1. True Heading.
    2. Magnetic Heading.
    3. Groundspeed.
    4. Time in minutes (ETE).
    5. Fuel required (in gallons) for this leg.

Answer Key & Step-by-Step Guide