Radio Communication Phraseology and Techniques -Cont.

INSTRUMENT FLIGHT RULES WORKBOOK

CHAPTER EIGHT

Altitudes up to but not including 18,000 feet MSL are spoken by stating the separate digits

of the thousands plus the hundreds. Examples:

12,000 --- ONE TWO THOUSAND

14,500 --- ONE FOUR THOUSAND FIVE HUNDRED

Altitudes at and above 18,000 feet MSL (FL 180) are spoken by stating the words "flight

level" followed by the first three digits of the altitude. Example:

FL 190 (ALT. 19,000) --- FLIGHT LEVEL ONE NINER ZERO

Airway or jet route numbers are spoken:

V12 --- VICTOR TWELVE

V99 --- VICTOR NINETY- NINE

V455 -- VICTOR FOUR FIFTY-FIVE

J533 --- JET FIVE THIRTY-THREE

All other numbers are transmitted by pronouncing each digit. Examples:

10 --- ONE ZERO

106 --- ONE ZERO SIX

When a radio frequency contains a decimal point, the decimal point is spoken as "point."

Examples:

Frequency 255.4 --- TWO FIVE FIVE POINT FOUR

7. The 24-hour clock system is used when transmitting time. The hour is indicated by the first

two figures and the minutes by the last two figures. Example:

0920 --- ZERO NINER TWO ZERO

1530 --- ONE FIVE THREE ZERO

Time may be stated in minutes only (two figures) when no misunderstanding as to the hour

is likely to occur.

8. The directions of bearing, radial, course, or heading are spoken in three digits and should

always be magnetic. The word "true" must be added when it applies. Examples:

(magnetic course)

005 --- COURSE ZERO ZERO FIVE

(true heading)

050 --- HEADING ZERO FIVE ZERO TRUE

(radial)

195 --- ONE NINER FIVE RADIAL

(NOTE: "Degrees" is not included.)

INTRODUCTION TO GROUND, AIRBORNE, LOST COMMUNICATION, AND

EMERGENCY VOICE PROCEDURES 8-5