Posted for Kevin Kossi <kevin@airforcemechanical.com>:

 Tire pressure is related to altitude and the temperature of the air  in the
tire. Was Lancair's tire pressure recomendation for ?? rated  at the factory
altitude of 3,000'  or sea level?
 
 I have heard of people using gasses other than air in their tires  that does
not expand and contract as much with temperature changes.
 
 I can see if you are flying at high altitudes where it is very cold  and due
to the coldness, the air pressure in the tire is reduced, how  you could have
an under-inflated condition when landing.
 
 Kevin Kossi
 New York City
 Legacy 40 Hrs