table, th, td { border: 0px solid black !important; } table { margin-bottom:25px; } The E6B flight computer, nicknamed the "whiz wheel" or "prayer wheel", is a form of circular slide rule used in aviation and one of the very few analog calculating devices in widespread use in the 21st century.E6B flight computers are used during flight planning (on the ground before takeoff) to aid in calculating fuel burn, wind correction, time en route, and other items. The following forms replicate the functions of an E6B. In the air, the flight computer can be used to calculate ground speed, estimated fuel burn and updated estimated time of arrival. 1. Wind Speed Result can be either Knots or MPH based on consistent entry of the same designation. Ground Speed True Airspeed Course Heading Calculated Wind Speed = 2. Wind Direction Result can be either Knots or MPH based on consistent entry of the same designation. Ground Speed True Airspeed Course Heading Calculated Wind Direction = 3. Heading, Ground Speed, And Wind Correction Angle Result can be either Knots or MPH based on consistent entry of the same designation. Wind Speed Wind Direction True Airspeed Course Calculated Heading Calculated Ground Speed Calculated Wind Correction Angle 4. Course, Ground Speed, And Wind Correction Angle Result can be either Knots or MPH based on consistent entry of the same designation. Wind Speed Wind Direction True Airspeed Heading Calculated Course Calculated Ground Speed Calculated Wind Correction Angle 5. Magnetic Variation This calculator is specifically for the Continental USA only Latitude (North Degrees) - - Longitude (West Degrees) - - Calculated Variation = 6. Magnetic Variation This calculator is specifically for the Alaska region only Latitude (North Degrees) - - Longitude (West Degrees) - - Calculated Variation = 7. Magnetic Variation This calculator is specifically for the Western Europe region only Latitude (North Degrees) - - Longitude (West Degrees) - - Calculated Variation = 8. Density Altitude Pressure Altitude (Ft) Actual Temperature F° C° Calculated Density Altitude = 9. Runway Crosswinds Runway Compass Heading Wind (From) Compass Direction Wind Speed In Knots or MPH Calculated Crosswind In Knots or MPH From Calculated Forward Ground Speed In Knots or MPH 10. Fahrenheit to Celsius This conversion of temperature is made using the formula Fahrenheit = ((9/5)*Celsius)+32 °F Calculated Temperature = °C 11. Celsius to Fahrenheit This conversion of temperature is made using the formula Celsius = (5/9)*(Fahrenheit-32); °C Calculated Temperature = °F 12. Wind Chill Wind chill cannot be accurately calculated for outside air temperatures (OAT) greater that 50 °F (10 °C) and wind speeds less than 4 MPH (3.5 Knots). Temperature (OAT) °F °C Wind MPH Knots Calculated Wind Chill = °F or °C 13. Heat Index Determine the heat index from the outside air temperature (OAT) and Relative Humidity. Temperature (OAT) °F °C % Relative Humidity Calculated Heat Index = °F or °C 14. Dewpoint Calculate the Dewpoint from the outside air temperature (OAT) and Relative Humidity Temperature (OAT) °F °C % Relative Humidity Calculated Dewpoint = °F °C 15. Relative Humidity Calculate the Relative Humidity from the outside air temperature (OAT) and Dewpoint Temperature (OAT)°F °C Dewpoint °F °C Calculated Relative Humidity = % 16. Pressure Conversion Convert Millibars to Inches of Mercury and Inches of Mercury to Millibars Millibars Inches Mercury Converted Barometric Pressure = 17. Miles Per Hour To Knots This conversion of speed (or distance) is made using the formula (Knots (or nautical miles) = MPH (or miles) * 0.86897624) MPH or Statute Miles Calculated Knots Or Nautical Miles = 18. Knots to Miles Per Hour This conversion of speed (or distance) is made using the formula (MPH (or statute miles) = Knots (or nautical miles) * 1.15077945) Knots or Nautical Miles Calculated MPH or Statute Miles = 19. True Airspeed (TAS or KTAS) Result can be either Knots or MPH based on consistent entry of the same designation. The formula is (IAS) + (.02 x MSL / 1000). Indicated Airspeed MSL Altitude Calculated True Airpeed =
