✅ Mach = TAS / LSS. LSS at -40°C = 573 kts. 390 / 573 = 0.68.
Look at the outer scale to find the "NAUT" and "STAT" arrows. Align 65 on the inner scale under the "NAUT" arrow. Look under the "STAT" arrow on the outer scale. 75 Statute Miles. Pro-Tips for Perfect E6B Execution
Muscle memory is key. Run through three to five of these verified problems before every flight lesson to keep your skills sharp. If you want to practice more, let me know: e6b flight computer exercises verified
Which (e.g., density altitude, off-course correction) you want to tackle next?
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 ✅ Mach = TAS / LSS
Read the corresponding time on the inner scale directly below 145. 75.6 minutes (75 minutes and 36 seconds). Verified Exercise 3: Finding Distance Traveled
Fuel calculations function identically to time-speed-distance, with replacing distance. Problem C : Your aircraft burns . How much fuel is used during a Look at the outer scale to find the "NAUT" and "STAT" arrows
✅ 120 NM / (48/60 hr) = 150 kts.
To truly master the , use these resources:
Time=DistanceGroundspeedTime equals the fraction with numerator Distance and denominator Groundspeed end-fraction Verified Exercises