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ATPL » Performance – Helicopter » Factors of performance

51.4 Factors of performance

51.4.2 Explain the effect of altitude on a helicopter’s performance.


51.4.4 Given the elevation and QNH of a location, calculate the pressure altitude.


51.4.6 Given a standard altimeter, determine the pressure altitude.


51.4.8 Given the pressure altitude and air temperature of a location, calculate the density altitude.


51.4.10 Given the elevation of a location, air temperature deviation from ISA, and QNH, calculate the ambient temperature.


51.4.12 Explain the effect of a change in air temperature on the power required to hover IGE or OGE.

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