香港國際機場，有幾多個航空管制官人員？

According to the 05/06 annual report from CAD, currently there are 216 ATC controllers, as dated to 31 Mar 2006.
Not all of them are Hong Kong Citizens. Some of them came from other countries through global recuritment.
Generally, it takes a student ATC controller 5-8 years to earn all licenses and work independently at Control Tower or at Radar room.

For more information, you can visit CAD 's website at:
www.cad.gov.hk
www.hkairport.com
www.airport-technology.com