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Features November 2015 Issue

Cold Altitudes

Below: Mechanical pressure altimeters provide adjustment only for pressure variations, not temperature. The irony is that EFIS altimeters could easily provide temperature compensation, but must remain compatible with these legacy mechanical instruments.

Cold Altitudes

When itís cold, altimeter errors can encroach on the obstacle clearance requirements of an approach. You could unwittingly find yourself dangerously low.

Itís no surprise that many pilots go into hibernation during the winter. Winter flying has its own set of risks and operational challenges. Itís cold. Thereís the potential for frost on the wings and ice in the clouds. The winds are generally stronger. There are icy ramps and runways with poor traction. Oh, and did we mention that itís cold?

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