"Bob Gardner" wrote in message
...
[snipped]

However, don't be surprised to hear a controller say "Climb and maintain
one
one thousand, eleven thousand" because there have been some
readback/hearback problems with pure digits.


Many controllers use similar technique with altitude assignments. I tend to
use the phraseology "Climb and maintain one-one, eleven thousand" when such
praseology is prudent, as opposed to "Climb and maintain one one thousand,
eleven thousand" (with it's repetition of the word "thousand").

Also BTW, we had a trainee controller cause an operational error using this
non-prescibed phraseology. His MIA was 4900. He had overflight traffic on
radar at 6000 and a non-radar departure that he was issuing a full IFR
clearance to. The departure was filed for 9000. As part of the detailed
departure clearance with "CRAFT" and all that, he instructed the pilot to
"Climb and maintain five thousand, FIVE" in an attempt to reinforce the 5000
assigned altitude portion of the full clearance. The pilot, doing the full
clearance readback, read back "Climb and maintain five thousand five, blah
blah blah..." The apprentice controller missed the semantical difference
between his phraseology and the pilot's readback and the departure aircraft
got with the overflight.

Chip, ZTL