Mastering the E6B flight computer, often nicknamed the "Whiz Wheel," is a rite of passage for every student pilot. Despite the rise of digital cockpit tools, the E6B remains a primary learning aid and a reliable backup that requires no batteries.
This guide provides verified exercises to help you master the mechanical E6B, covering essential calculations for ground speed, fuel burn, and flight planning. Understanding the E6B Layout The E6B consists of two distinct functional areas:
The Calculator Side: A circular slide rule used for time, speed, distance, fuel consumption, and unit conversions.
The Wind Side: A transparent window with a sliding grid used to determine wind correction angles (WCA) and ground speed. Practice Exercises with Verified Answers 1. Time, Speed, and Distance
These calculations use the "Speed Index"—the large 60 (representing 60 minutes in an hour) on the inner scale.
Exercise A: You are cruising at a ground speed of 120 knots. How long will it take to fly 30 nautical miles?
Step: Align the 60 Speed Index with 12 (120) on the outer scale. Find 30 on the outer scale. Verified Answer: 15 minutes.
Exercise B: If you travel 180 nautical miles in 90 minutes, what is your ground speed?
Step: Align 90 on the inner scale with 18 (180) on the outer scale. Look at the Speed Index (60). Verified Answer: 120 knots.
What is an E6B and Why Every Pilot Needs One - Home - CYA Aviation e6b+flight+computer+exercises+verified
The E6B flight computer, often called the "whiz wheel," is a staple of flight training used to calculate fuel burn, wind correction, and time en route. Mastering this manual tool remains a critical skill for student pilots, as it requires no batteries and is approved for FAA written exams. Essential Practice Exercises
The following verified exercises target the most common flight planning scenarios. For interactive practice, tools like the E6B Practice App offer real-time verification for both calculator and wind-side problems. 1. Time, Speed, and Distance
The Problem: Find the time en route for a 120 NM leg at a ground speed of 100 knots.
The Method: On the calculator side, rotate the inner scale so the "60" index (representing one hour) is opposite 10 (100 knots) on the outer scale.
The Result: Locate 12 (120 NM) on the outer scale. Directly underneath, read 72 minutes (or 1:12) on the inner scale. 2. Wind Correction and Ground Speed
This write-up provides verified exercises for mastering the E6B flight computer, focusing on core flight planning calculations essential for pilots. Core E6B Exercises (Verified) 1. Calculating True Airspeed (TAS) Scenario: Calibrated Airspeed (CAS) is , Pressure Altitude is , and Outside Air Temperature (OAT) is Procedure: Set (Pressure Altitude) opposite (OAT) in the small wind window. Verification: Locate (CAS) on the inner scale; read TAS ( ) on the outer scale. 2. Determining Density Altitude Scenario: Pressure Altitude is Procedure: Set in the window opposite
Verification: Look at the Density Altitude index; it should read approximately 3. Wind Correction Angle (WCA) and Groundspeed (GS) Scenario: True Course (TC) 090∘090 raised to the composed with power , True Airspeed (TAS) 180∘180 raised to the composed with power Procedure: Place the grommet on a convenient number (e.g., Mark the wind direction ( 180∘180 raised to the composed with power ) from the center upward. Measure up from the grommet by the wind speed ( Rotate the dial so the True Course ( 090∘090 raised to the composed with power ) is at the top. Adjust the slide so the wind mark sits on the TAS arc (
Verification: Read WCA (wind is from the right, so it's a plus value) and GS on the inner scale ( 4. Fuel Burn Calculation Scenario: Fuel burn rate is , flight time is
Procedure: Set the inner ring's "10" (fuel flow) opposite the "60" (rate index) on the outer ring. Verification: Locate minutes) on the outer ring. The inner ring reads are burned. To customize this further, let me know: Mastering the E6B flight computer, often nicknamed the
Are you using a physical metal/cardboard E6B or a digital/electronic version?
I can provide more specialized exercises tailored to your needs.
E6B Made Easy: A Beginner's Step-by-Step Guide - Pilot Institute
There is a specific rite of passage for every student pilot: the moment the flight instructor hands you a small, sliding piece of metal or plastic known as the E6B Flight Computer.
In an age of glass cockpips, ForeFlight, and Garmin avionics, the "Whiz Wheel" can feel like an artifact from a bygone era. However, the FAA still requires you to know how to use it, and more importantly, it offers a tactile understanding of the math behind the flying that a tablet simply can't replicate.
If you’ve been staring at the two sides of the wheel feeling overwhelmed, fear not. We have broken down the four most common E6B exercises you need to master for your check ride and written exam.
Exercise 6
Pressure altitude = 6,500 ft. OAT = -10°C. Density altitude?
Exercise 7
Pressure altitude = 8,000 ft, OAT = +15°C. Find Density Altitude.
Exercise 8
CAS = 110 knots, Pressure altitude = 7,500 ft, OAT = +5°C. Find TAS. There is a specific rite of passage for
Exercise C1 (Trip time)
Exercise C2 (Distance in given time)
Scenario: You fly 78 NM on a heading of 045°. At that point, you realize you are 4 NM right of course.
Questions:
✅ Verified Answers:
Even with verified exercises, students make these mistakes:
| Mistake | Consequence | Verified Fix | |---------|-------------|---------------| | Using true course as magnetic heading | Fly wrong heading | Always write TC → TH → MH → CH | | Forgetting to convert minutes to decimal | Huge distance errors | Always align with “60” index | | Misreading wind dot (above vs below grommet) | Reverse correction | Wind is from direction – dot goes up | | Using CAS instead of TAS for wind triangle | WCA off by 3-5° | Always compute TAS first |
Exercise 11
You are 8 NM left of course after flying 45 NM. Total leg length = 120 NM. What correction to reach destination?
Answer: Turn 17° right (if left of course)