On Wed, 12 Jan 2005 22:52:20 GMT, Matt Young
wrote:

but would still be accurate at the altitude where it became blocked, and
would still increase and decrease with airspeed changes when level, the
numbers would just be meaningless, right?


Yes! Remember, if you break the glass of the altimeter, it won't be
sealed anymore, and despite a small static error, all instruments
using static pressure will be working again (except ASI in case of
pitot failure) (doesn't work with pressurized A/C, of course!)