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→Total energy in gliding: a more interesting quantity
This is a remarkable result. This implies that if we can monitor the pressure at a location X on the aeroplane such that \( C_{pX} = -1 \), we can track the total mechanical energy change of the aeroplane. This is the fundamental working principle of a "total energy compensated variometer". When installed on a glider, this is known without ambiguity as the '''variometer'''.
==== How to measure total energy ====
=== Variometer (gliders) ===
