One of the very best ones (adapted to aviation use from amateur radio) is
QLF (now try that maneuver using only your LEFT foot.)

Jim


"jan olieslagers" wrote in message
...
Some Q-codes are well known to pilots: QHN, QFE; some are studied in
ground class like QDR and QDM. Recently I heard say there also exists one
for "request to leave your frequency", ISTR it was QSR.

Which brings me to some questions:

-) where can I find a complete and authorative lsit of the Q-codes to be
used in aviation R/T?
-) who is the owner/maintainer of this list? They are international, so it
cannot be any national administration*. ICAO perhaps? But then I
understand some of these codes are also used by meteorologists and
sailors, too...?

TIA,
KA

* besides we have recently seen examples of the confusion that national
administrations can create through confusing or even contradictory
publications...