content_image/589787.jpg content_image/589786.jpg content_image/589785.jpg content_image/589784.jpg content_image/589788.jpg content_image/589781.jpg content_image/589782.jpg content_image/589783.jpg
## 4 − 2 − 8. Figures 

a. Figures indicating hundreds and thousands in round number, as for ceiling heights, and upper wind levels up to 9,900 must be spoken in accordance with the following. 

## EXAMPLE − 

<img src='content_image/589787.jpg'>

b. Numbers above 9,900 must be spoken by separating the digits preceding the word “thousand.” 

## EXAMPLE − 

<img src='content_image/589786.jpg'>

c. Transmit airway or jet route numbers as follows. 

## EXAMPLE − 

<img src='content_image/589785.jpg'>

d. All other numbers must be transmitted by pronouncing each digit. 

## EXAMPLE − 

10 one zero ........... 

e. When a radio frequency contains a decimal point, the decimal point is spoken as “POINT.” 

## EXAMPLE − 

122.1 one two two point one ......... 

## NOTE − 

ICAO procedures require the decimal point be spoken as “DECIMAL.” The F AA will honor such usage by military aircraft and all other aircraft required to use ICAO procedures. 

## 4 − 2 − 9. Altitudes and Flight Levels 

a. Up to but not including 18,000 feet MSL, state the separate digits of the thousands plus the hundreds if appropriate. 

## EXAMPLE − 

<img src='content_image/589784.jpg'>

b. At and above 18,000 feet MSL (FL 180), state the words “flight level” followed by the separate digits of the flight level. 

## EXAMPLE − 

<img src='content_image/589788.jpg'>

## 4 − 2 − 10. Directions 

The three digits of bearing, course, heading, or wind direction should always be magnetic. The word “true” must be added when it applies. 

## EXAMPLE − 

<img src='content_image/589781.jpg'>

## 4 − 2 − 11. Speeds 

The separate digits of the speed followed by the word “KNOTS.” Except, controllers may omit the word “KNOTS” when using speed adjustment procedures; e.g., “REDUCE/INCREASE SPEED TO TWO FIVE ZERO.” 

## EXAMPLE − 

<img src='content_image/589782.jpg'>

The separate digits of the Mach Number preceded by “Mach.” 

## EXAMPLE − 

<img src='content_image/589783.jpg'>

## 4 − 2 − 12. Time 

a. FAA uses Coordinated Universal Time (UTC) for all operations. The word “local” or the time zone equivalent must be used to denote local when local time is given during radio and telephone communica- tions. The term “Zulu” may be used to denote UTC. 

## EXAMPLE − 

0920 UTC zero niner two zero, ..... zero one two zero pacific or local, or one twenty AM 

