Converting Calibrated Airspeed (CAS) based on pressure altitude and temperature.
You pass over your first checkpoint and note that you have traveled 24 NM in exactly 11 minutes. Question: What is your current groundspeed? Verified Solution: 131 knots. E6B Steps:
Ground Speed: 119 Knots | Wind Correction Angle: +8° (TH: 206°) . Exercise 5: Crosswind Calculation Data: TC: 042° | TAS: 170 kts | Wind: 290° at 16 kts. Step-by-step: Align wind 290 under index. Mark 16 kts up. Rotate TC 042 under index. Move grid to 170 kts TAS.
The large black triangle on the inner scale represents the 60-minute index . Always use this as your baseline for hourly rates (speed in knots, fuel burn in gallons per hour). The Wind Side (Slide and Grid) Purpose: Determines the effects of wind on your aircraft. e6b flight computer exercises verified
Look at the pencil mark to see how many degrees left or right it sits from the centerline. This is your Wind Correction Angle (WCA). Because the wind is from the right ( 180∘180 raised to the composed with power ), you must crab into it. Wind Correction Angle: +10∘positive 10 raised to the composed with power True Heading: 100∘100 raised to the composed with power Groundspeed: 118 Knots. Exercise 7: Heading with a Tailwind Component Scenario: True Course (TC): 340∘340 raised to the composed with power True Airspeed (TAS): 100 knots Wind Direction/Speed: From 290∘290 raised to the composed with power at 25 knots E6B Steps: 290∘290 raised to the composed with power with the True Index. Mark 25 knots up from the grommet. Turn the wheel to put 340∘340 raised to the composed with power under the True Index.
Set the "60" index (the large black triangle) under 11 (representing 110 knots) on the outer scale. Find 18 on the outer scale; directly beneath it on the inner scale is 9.8 minutes . Fuel Consumption: This follows the same ratio as TSD.
: 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 Verified Solution: 131 knots
Read the value on the outer scale directly above the 60 pointer. 140 Knots Exercise 2: Finding Time En Route
Calculate fuel burn for a 2.5-hour flight at 8.5 gallons per hour (GPH). Align the "60 Rate" triangle with on the outer scale. minutes (2.5 hours) on the inner scale. Read the total fuel on the outer scale. Verify Result: ~21.3 gallons. ✈️ Performance & Conversions
Slide the wind grid so the pencil dot rests precisely on the 120 knot True Airspeed arc line. Read the Groundspeed under the center grommet. Step-by-step: Align wind 290 under index
Look at the "STAT" arrow on the outer scale and read the value underneath it. Verified Answer: 98 Statue Miles . Exercise 4.2: Density Altitude Problem: Pressure Altitude: 5,000 feet Outside Air Temperature (OAT): +25°C Step-by-Step Solution:
Do you prefer for the speed exercises?
Slide the grid until your plotted wind dot rests on your True Airspeed line (120).
Locate 2:20 on the hour scale (or 140 on the inner scale). Step 3: Read the outer scale above 140. Verified Answer: 22.2 gallons . Exercise 2.2: Endurance (Time to Depletion)
The E6B flight computer, affectionately known as the "Whiz Wheel," remains a cornerstone of pilot training due to its reliability and manual precision