E6b Flight Computer Exercises Verified |verified|

Mastering the E6B flight computer, often called the "whiz wheel," is a rite of passage for student pilots . This write-up breaks down the essential exercises and verified steps for common flight planning calculations. Core Concept: The 60:1 Rule The "calculator side" of the E6B works on a 60-to-1 ratio, aligning with the 60 minutes in an hour Outer Scale (Fixed): Represents distance, fuel quantity, or ground speed Inner Scale (Rotating): Represents time (minutes) or fuel flow The Index (60): The large black triangle on the inner scale is your reference point for "per hour" rates 1. Speed, Time, and Distance These are the most frequent calculations. Always remember: Speed is "per 60 minutes." To find Ground Speed: Align the total time on the inner scale with the total distance on the outer scale. Look at the (triangle) on the inner scale. The number directly above it on the outer scale is your speed To find Time En-route: to your ground speed on the outer scale. Find your total distance on the outer scale. The number below it on the inner scale is your time in minutes 2. Fuel Consumption Fuel calculations mirror time/distance problems but use fuel flow instead of speed To find Total Fuel Burned: with your fuel flow (e.g., 8 GPH) on the outer scale. Find your total flight time on the inner scale. The number above it on the outer scale is the fuel consumed 3. Wind Correction (The "Wind Side") This side solves for your Wind Correction Angle (WCA) Ground Speed (GS) Sporty's Pilot Shop Rotate the compass rose to place the wind direction under the "True Index" Mark Velocity: Move the slide so the "grommet" (center hole) is on a heavy line (like 100). Mark the wind speed upwards from the center (e.g., if wind is 20 knots, mark at 120) Set Course: Rotate the compass to your True Course Align TAS: Slide the card until your True Airspeed (TAS) arc is under your pencil mark Read Results: Ground Speed: Read the number under the center grommet See how many degrees left or right your mark is from the center line Verified Practice Resources For hands-on reps, these resources provide verified problems and step-by-step solutions:

The Spin Stops Here: Verified E6B Flight Computer Exercises for the Modern Pilot In an era of glass cockpits, ForeFlight, and Garmin wonders, the sight of a whizzing aluminum wheel can feel like an artifact from a bygone era. Yet, the E6B flight computer remains the standard for pilot training and a critical backup for contingency planning. It is a mechanical brain that solves the complex mathematics of aviation without batteries or signal. However, the E6B is only as smart as the pilot spinning the wheel. Discrepancies between your E6B calculation and a digital ForeFlight readout often lead to panic: "Which one is right?" This article provides verified exercises for the E6B. These are standard problems with known solutions that you can use to confirm your device is calibrated correctly and your technique is sound. If you can solve these, your mechanical flight planning is flight-ready.

Part 1: The Pre-Flight Check (Is Your Wheel Broken?) Before attempting complex wind correction problems, verify the physical integrity of the computer. The Speed Index Check:

Locate the "60" mark on the inner scale (often called the "Speed Index"). Rotate the inner disk until the "60" sits directly under the "10" (or "1") on the outer scale. Verification: Now, find the "12" on the inner scale. It should sit exactly under the "20" (or "2") on the outer scale. e6b flight computer exercises verified

The Logic: This verifies the ratio $60:10$ is equal to $120:20$. If these do not align, your E6B is warped or the grommet is off-center, and all subsequent calculations will be wrong.

Part 2: Verified Exercise – The Time-Speed-Distance Triangle The most basic function of the E6B is the slide rule face used for multiplication and division. Let’s verify a standard ground speed problem. The Scenario: You are flying a leg of 90 nautical miles. You estimate this leg will take 40 minutes. What is your Ground Speed (GS)? The Manual Steps:

Find the Distance (90) on the outer scale. Rotate the inner disk so the Time (40) sits directly under the distance. Look at the "Speed Index" (the big arrow at "60") on the inner disk. Read the number on the outer scale directly above the Speed Index. Mastering the E6B flight computer, often called the

The Verified Solution:

Your outer scale should read 135 . Answer: Ground Speed is 135 knots .

Troubleshooting: If you got 81 knots, you likely misread the numbers (reading 36 instead of 135) or placed the inner number under the wrong outer number. Remember, the numbers on the outer scale usually represent the "answer" (Distance or Speed), while the inner scale represents the "variable" (Time). Speed, Time, and Distance These are the most

Part 3: Verified Exercise – Fuel Consumption This exercise verifies your ability to perform multiplication (finding a quantity given a rate). The Scenario: Your aircraft burns 9.5 gallons per hour (GPH). You plan to fly for 2 hours and 20 minutes. How much fuel will you consume? The Manual Steps:

Place the Rate (9.5 GPH) on the outer scale over the Speed Index (60) on the inner scale. (This sets the "per hour" baseline). Find Time (2:20 or 140 minutes) on the inner scale.