International Phonetic Alphabet Numerals
(Accented syllable in bold.)
0 - (zee - ro)
5 - (five)
1 - (wun)
6 - (six)
2 - (too)
7 - (sev - en)
3 - (three)
8 - (ait)
4 - (fow - er)
9 - (ni - ner)
Normally questions requiring a "yes" or "no" answer are
answered using yes and no. However, in aviation the answers are "affirmative"
for yes and "negative" for no.
Verbal communications are possibly more prone to confusion and misunderstanding
than those that are written. Whether the person is a controller or pilot, what
the sender (or speaker) transmits is not always what the receiver (or listener)
receives or hears. When a controller transmits a clearance, the clearance is
"read back" by the crewmember receiving the message. The "read-back" is used to
confirm that the message received was indeed the message sent. Shorter words are
more often misunderstood than longer words. It seems talkers start talking
before listeners start listening. Over.