>>Altimeter Watches For Skydiving

The instrument used to measure an aircraft’s altitude is an altimeter. It measures altitude above mean sea level (MSL).An altimeter estimates these measurements using static air pressure.The altimeter estimates altitude based on changes in atmospheric air pressure.
The estimated measurement is based on a system that sets standard atmospheric pressure and temperature. Altimeters are set in accordance with the international standard atmosphere (ISA).These international standards are used to calibrate the plain altimeter so that the pilot can estimate elevation.
The standard measurement is a starting point for read more...