E6-B Flight Computer Exercises: Verified Solutions
The E6-B flight computer is a vital tool for pilots, used for calculating various flight-related parameters such as fuel consumption, flight time, and navigation data. To ensure proficiency in using this instrument, pilots often engage in exercises that simulate real-world flight scenarios. This write-up provides verified solutions to a series of E6-B flight computer exercises, helping pilots to validate their calculations and enhance their understanding of the instrument's capabilities.
Exercise 1: Fuel Consumption Calculation
Solution:
Exercise 2: Flight Time Calculation
Solution:
Exercise 3: Navigation - Heading and Ground Speed
Solution:
Exercise 4: Climb and Descent Calculations
Solution:
Verification and Discussion:
The solutions provided to these exercises have been verified through the proper use of the E6-B flight computer. Mastery of these calculations enhances a pilot's ability to plan and execute safe and efficient flights. Regular practice with the E6-B flight computer not only ensures proficiency but also aids in developing a deeper understanding of the interplay between various flight parameters.
Conclusion:
The E6-B flight computer is an indispensable tool in aviation, allowing pilots to perform critical calculations quickly and accurately. Through the verification of solutions to exercises, pilots can reinforce their skills and build confidence in using this instrument. As with any navigational tool, proficiency comes with practice; hence, regular engagement with E6-B flight computer exercises is highly recommended.
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:
Wind problems are the most failed portion of the E6B oral exam. Verified practice is non-negotiable.
| Exercise | Inputs | Verified Output | |------------------------|--------------------------------|-----------------------------| | Time to 120 NM @ 90 kt | 120 NM, 90 kts | 80 min | | GS from 270 NM/135 min | 270 NM, 135 min | 120 kts | | Fuel for 3.5h @ 12.5 | 3.5 hr, 12.5 GPH | 43.75 gal | | WCA for 090 TC/110 TAS | Wind 030/20 | TH 080°, GS 102 kt | | Density altitude | 2500 ft elev, +20°C, 29.92 | ~4400 ft | | TAS @ 8000 ft, -10°C | CAS 120 kt | ~139 kt |
The E6B flight computer is not obsolete—it’s a lifesaver when batteries die or GPS fails. But only verified practice builds the muscle memory needed to use it under pressure. By working through the exercises above—time-speed-distance, fuel, wind, density altitude, and off-course corrections—you are not just memorizing steps. You are internalizing a visual, mechanical understanding of flight physics.
Keep your whiz wheel greased, your pencil sharp, and always check your answers against a verified source. Do that, and your checkride examiner will see a pilot who truly understands the art of navigation—no electrons required. e6b flight computer exercises verified
Next step: Download the free 50-question E6B exercise bank (link in bio) and time yourself. Aim for 90% accuracy in under 2 minutes per problem. Then go fly.
Mastering the E6B "Whiz Wheel" is all about getting "reps" in for the three main types of problems: Calculator Side (Speed/Time/Distance), Wind Side (Heading/Groundspeed), and Conversions/Altitudes.
Below are verified practice exercises and resources to help you sharpen your skills. 🧭 Wind Side Exercises (Heading & Groundspeed)
These problems are essential for flight planning and the FAA Knowledge Test. Use the "Wind Side" of your E6B to solve for Groundspeed (GS) and Wind Correction Angle (WCA). True Course Wind (Dir @ Speed) True Airspeed (TAS) Solution (GS / WCA) 240° @ 20 kts 94 kts / -10° 240° @ 30 kts 120 kts 060° @ 30 kts 140 kts / 0° (Direct Tail) 210° @ 15 kts Verify on Flight Apprentice 🔢 Calculator Side Exercises (Time & Fuel)
The calculator side uses a "60 to 1" ratio (60 minutes in an hour) to solve rate problems.
Time En Route: If your Groundspeed is 150 kts and the distance is 245 NM, set the "Rate Arrow" (60) to 150. Look at 24.5 on the outer scale. Verified Result: 1 hour and 38 minutes.
Fuel Endurance: Your plane burns 6.2 gal/hr and has 38 gallons usable. Set the Rate Arrow to 6.2. Look at 38 on the outer scale. Verified Result: 6 hours and 8 minutes.
Density Altitude: Given Pressure Altitude 3,000' and OAT 10°C. Verified Result: 3,100'. 🛠️ Step-by-Step Training Resources
If you need to verify your physical movements on the wheel, these interactive tools provide real-time feedback:
The Ultimate E6B Quiz - Calculating Time, Speed, and Distance
The E6B flight computer (or "Whiz Wheel") remains a foundational tool for pilots, functioning as a circular slide rule to solve complex navigation problems. It is still FAA-approved for written exams in both its traditional mechanical and modern electronic forms.
Below are verified exercise examples and a breakdown of how to use the device to solve them. 1. Time, Speed, and Distance (The Front Side)
The front side operates on a 60-to-1 ratio, aligning with the 60 minutes in an hour. The "60" index (often a large triangle) is your primary reference point.
Example Exercise: Calculate groundspeed if you fly 13 NM in 6.8 minutes.
Step: Align the distance (13) on the outer scale with the time (6.8) on the inner scale.
Result: Look at the "60" index (the rate pointer) on the inner scale. It will point to roughly 11.5 on the outer scale, which translates to 115 knots. 2. Wind Correction and Groundspeed (The Back Side)
The back side uses a sliding card and a rotating azimuth to solve wind vector problems.
Example Exercise: Find your Wind Correction Angle (WCA) and Groundspeed (GS).
Given: Magnetic Course 328°, Wind 270° at 5 knots, True Airspeed (TAS) 112 knots.
Set Wind: Rotate the azimuth to the wind direction (270°). Use a pencil to mark the wind speed (5 units) up from the center grommet. Align Course: Rotate the azimuth to your course (328°).
Adjust TAS: Slide the card so the wind dot rests on your TAS line (112 knots).
Read Result: The grommet now shows your Groundspeed, and the dot's horizontal offset indicates your WCA in degrees. 3. Density Altitude Calculation
Density altitude is critical for determining aircraft performance in different atmospheric conditions.
The E6B flight computer, affectionately known as the "Whiz Wheel," remains a cornerstone of pilot training due to its reliability and manual precision
. Often intimidating at first glance, this mechanical circular slide rule operates on basic principles of ratio and proportion to solve complex flight navigation problems without the need for batteries. Mastering the Scales: Time and Distance
The "calculator side" of the E6B is used for most arithmetic tasks, including time, speed, distance, and fuel consumption. FLYING Magazine The 60:1 Principle
: The device is built on a 60-to-1 ratio, aligning with the 60 minutes in an hour. To calculate speed, you align the Rate Arrow
(the large triangle pointing to 60) with your ground speed on the outer scale. Reading Results
: Once set, the outer scale represents distance and the inner scale represents time. For example, if your speed is 120 knots, placing the rate arrow at 12 on the outer scale allows you to see that 26 nautical miles will take exactly 13 minutes. Decimal Management E6-B Flight Computer Exercises: Verified Solutions The E6-B
: The scales use relative values (10 can mean 1, 10, or 100), meaning you must use common sense to place the decimal correctly based on the flight context. The Wind Side: Vector Solutions
The reverse side features a sliding grid used to solve wind-related problems. Wind Correction Angle (WCA)
: This is vital for maintaining a desired ground track in a crosswind. Step-by-Step Execution
Align the wind direction at the top and mark the wind speed above the center grommet. Rotate the wheel to your True Course.
Slide the wind mark to align with your True Airspeed (TAS) on the grid. The grommet then reveals your Ground Speed , while the wind mark's horizontal displacement shows the Wind Correction Angle (left or right). Practical Exercises for Verification Standard exercises used in Private Pilot (PPL) Ground School
Mastering the E6B flight computer (or "Whiz Wheel") is a core skill for any pilot. Below are verified practice exercises designed to test your proficiency on both the Calculator Side (time, speed, distance) and the Wind Side (groundspeed, headings). 1. Speed, Time, and Distance (Calculator Side)
These problems use the outer scale for distance/speed and the inner scale for time. Remember to align the Rate Arrow (the black triangle at "60") with your speed. Given Data Verified Answer A GS: 125 kts, Distance: 245 nm Find Time En Route 1:58 (1 hr 58 min) B GS: 147 kts, Time: 47 min Find Distance Flown 115 nm C Distance: 33 nm, Time: 25 min Find Groundspeed 79 kts D Distance: 2 NM, GS: 72 KTS Find Time Required 1 min 40 sec 2. Fuel Consumption and Endurance
Align the Rate Arrow with your Gallons Per Hour (GPH) on the outer scale. Given Data Verified Answer A Burn Rate: 8.4 GPH, Total Fuel: 63 gal Find Endurance 7 hrs 30 min B Time: 4 hrs 20 min, Fuel Used: 32 gal Find Average Burn Rate 7.4 GPH C Burn Rate: 8.5 GPH, Time: 7.5 min Find Fuel Consumed ~1.1 gal 3. Wind and Heading (Wind Side)
These exercises require using the sliding card and the "grommet" (center hole). These steps follow standard FAA Knowledge Test formats. Verified Answer Wind Correction Wind: 290° @ 18 ktsCourse: 125°TAS: 85 kts GS: 102 kts; WCA: -3° (Left) Finding Wind True Course: 345°True Heading: 355°TAS: 85 ktsGS: 95 kts Wind: 238° @ 18 kts Magnetic Heading Course: 125°Wind: 219° @ 27 ktsTAS: 145 kts GS: 153 kts; WCA: -10° 4. Altitude and Airspeed Corrections
Use the small "windows" on the calculator side to account for non-standard pressure and temperature.
Density Altitude: Set Outside Air Temperature (OAT) opposite Pressure Altitude.
Example: OAT: 25°C, Pressure Altitude: 2,300 ft. Density Altitude = 4,000 ft.
True Airspeed (TAS): Set Pressure Altitude opposite OAT in the airspeed window. Look at Calibrated Airspeed (CAS) on the inner scale to find TAS on the outer scale.
Example: Pressure Altitude: 5,000 ft, OAT: -15°C, CAS: 90 kts. TAS = 95 kts. Quick Tips for Accuracy
A pilot is flying a Cessna 172 with a True Airspeed (TAS) of knots. They are heading into a -knot headwind.
Step: Using the "Wind" side of the E6B, the pilot marks the wind direction and speed. Action: Subtract the -knot headwind from the -knot TAS. Result: The Ground Speed (GS) is 2. Estimate Time En Route
The distance from the departure airport to the first waypoint is nautical miles (NM).
Step: Rotate the circular scale (the "Calculator" side) so the "60" rate arrow (representing minutes) points to the GS of Action: Look for
on the outer (miles) scale and read the corresponding value on the inner (minutes) scale. Result: The time to the waypoint is 3. Determine Fuel Burn The aircraft burns
gallons per hour (GPH). The pilot needs to know how much fuel will be consumed during that -minute leg. Step: Set the rate arrow to on the outer scale. Action: Locate minutes on the inner scale and read the outer scale. Result: The fuel used is 4. Correct for Wind Drift The pilot wants to maintain a True Course (TC) of 090∘090 raised to the composed with power , but there is a crosswind from 045∘045 raised to the composed with power
Step: Use the wind slide to calculate the Wind Correction Angle (WCA).
Action: Align the TC and apply the wind vector to find how many degrees left or right to steer. Result: The pilot determines a WCA of +5∘positive 5 raised to the composed with power , resulting in a True Heading (TH) of 095∘095 raised to the composed with power to stay on course. Final Verification
By running these exercises, the pilot ensures their manual calculations match their digital flight plan, a critical skill for the FAA Private Pilot Knowledge Test.
The E6B flight computer, often called the "Whiz Wheel," remains a critical tool for pilots to calculate navigation and performance data manually. A complete review of its operations involves mastering two distinct sides: the Calculator Side for time, speed, distance, and fuel, and the Wind Side for groundspeed and wind correction angles. Core Calculations & Exercises
Practical mastery is achieved through repetitive exercises across these key functions:
Time, Speed, and Distance: Using the front side, set the rate (knots) under the speed index (the large "60" triangle). You can then read distance on the outer scale and the corresponding time on the inner scale.
Fuel Consumption: Similar to speed, set the fuel burn rate (gallons per hour) at the speed index to determine total fuel burned for a specific flight duration. Wind Correction & Groundspeed: Set the wind direction under the "True Index." Mark the wind velocity up from the center grommet. Set your True Course under the True Index.
Slide the marked wind dot to intersect with your True Airspeed (TAS).
Read your Groundspeed under the grommet and your Wind Correction Angle (WCA) based on the dot's horizontal offset. Given:
Altitudes & Airspeeds: Use the specialized windows on the calculator side to determine Density Altitude and True Airspeed by aligning pressure altitude with outside air temperature. Verified Practice Resources
For verified exercises and step-by-step review, the following sources are highly recommended: Workbooks: The Flight Apprentice E-6B Workbook
provides a structured list of practice problems covering magnetic course, wind, and TAS to solve for time en-route and heading.
Interactive Apps: Tools like Sporty's E6B Flight Computer and PPL Exams - EASA & FAA offer simulated environments and verified test-prep questions.
Official Hardware: Physical units from ASA or Sporty's are standard for FAA exams, with the electronic versions often featuring backlit screens and built-in storage cases for turbulence. Sporty's Pilot Training - App Store
E6B flight computer (or "Whiz Wheel") is a circular slide rule used for essential navigation and performance calculations. Mastery involves using the Calculator Side for time/speed/distance and the for heading and groundspeed. Core Calculations & Verified Exercises
To practice effectively, use these common scenarios derived from FAA knowledge test standards. 1. Time, Speed, and Distance (Calculator Side) The outer scale represents (or Fuel), and the inner scale represents
Find the time en route for a 45 nautical mile leg at a groundspeed of 112 knots.
Rotate the inner disk to align the "60" rate arrow (Speed Index) with (representing 112) on the outer scale. (representing 45) on the outer scale. Read the time on the inner scale directly below 4.5. Verified Answer: ~24 minutes. Flight Training Central 2. Fuel Endurance (Calculator Side) Calculate the endurance of an aircraft with 53 gallons of fuel and a burn rate of 9.8 gallons per hour Set the rate arrow (60) to on the outer scale. (53 gallons) on the outer scale. Read the time on the inner scale. Verified Answer: ~5 hours and 24 minutes. Flight Training Central 3. Wind Correction & Groundspeed (Wind Side)
This requires using the sliding card and the "Wind Dot" method. 250° at 15 knots , True Course is , and TAS is . Find the Groundspeed.
under the "True Index." Mark the wind speed (15 knots) up from the center grommet. Rotate the disk to put (True Course) under the index. Slide the card until the wind mark rests on the speed line. Groundspeed under the center grommet. Verified Answer: ~117 knots. Flight Training Central Practice Resources
For verified practice, these tools provide automated checking:
The E6B (both the circular slide rule side and the wind side) is prone to user error. Misreading the scale by a factor of 10 or forgetting to align the “grommet” (center dot) with the wind direction leads to disastrous flight plans.
"Verified" means:
Never practice with random online problems that lack answer keys. You will inadvertently train bad habits.
Exercise 4.1
E6B method (outer scale: distance, inner scale: time):
Place 160 (speed) over 60 (minutes). Read time opposite 240 NM.
Verified answer:
90 minutes (1 hr 30 min)
Exercise 4.2
Place 95 over 60. Opposite 135 min → distance.
Verified:
214 NM
Exercise 4.3
Place 320 opposite 160 min. Read speed over 60.
Verified:
120 kt
The wind side of the E6B is where most students struggle. The error usually comes from drawing the wind dot incorrectly or misinterpreting the True Course. Let’s run a standard FAA-style question with a verified answer.
The Scenario:
The Manual Steps:
The Verified Solution: