TRUE ALTITUDE #
This is a module helping you to calculate your true margin within relief, according to real atmosphere. As real atmosphere differs from standar atmosphere, your true altitude depends on QNH and temperature.
- set present FL and SAT to calculate ISA T°. Then, lock ISA toggle.
- set QNH and MOCA altitude
- set FL to your level off altitude
TRUE SPEED #
In a similar way, true speed depends on altitude : select your IAS indicated airspeed, altitude, QNH and temperature, and read your true airspeed.