wrote in message
news:1112450834.c8667573d8289303bfe99a615744de93@1 usenet...
All this information is very helpful... I thank you all. Needing to
account for
Transition Altitudes and Levels in some potential software, I will take
this all into account. It wasn't stated directly, but can I presume these
altitudes are always a multiple of 100 feet? (In airspaces where english
system
altitudes and metric system barometers are used).

Yes, flight levels are always in hundreds of feet where the Blue Table
(altitudes in ft, other units ICAO standard) is used.

If you're writing software, the following may or may not be relevant: the
definition of transition *level* varies from state to state. In some cases,
it is the lowest flight level multiple of 5 above the transition altitude,
in some it's the lowest multiple of 10, and in others it's the lowest IFR
level with standard separation (1000 ft) from the transition altitude.

Julian