FAA Part 107 Remote Pilot (UAG)OperationsMedium
A remote pilot in command reviews a Winds and Temperatures Aloft Forecast (FB) before a survey flight and sees the entry for 3,000 feet listed as '2714+08.' How should this entry be interpreted?
- AWind from 270° true at 14 knots, temperature +8°C
- BWind from 270° true at 14 miles per hour, temperature +8°C
- CWind toward 270° at 14 knots, temperature +8°F
- DWind from 027° true at 140 knots, temperature -8°C
Show answer & explanationAnswer & explanation
Correct answer: A. Wind from 270° true at 14 knots, temperature +8°C
In an FB forecast, the first two digits represent wind direction in tens of degrees true, and the next two represent wind speed in knots. Temperature follows in Celsius. Therefore '2714+08' means wind from 270° true at 14 knots with a temperature of +8°C.
Why the other options are wrong
- B. Wind speed in FB forecasts is given in knots, not mph.
- C. Wind direction indicates 'from,' not 'toward,' and units are Celsius not Fahrenheit.
- D. Misreads the direction/speed digit grouping and sign of temperature.
Winds and Temperatures Aloft Forecast (FB)
An FAA forecast product giving expected wind direction/speed and temperature at various altitudes, decoded as direction (tens of degrees), speed (knots), and temperature (°C).
- First 2 digits = direction/10, true north
- Next 2 digits = speed in knots
- Temperature in Celsius follows the +/- sign
Memory trick: 'Direction, Speed, then Sea-lsius' — decode left to right