Professional Pilot

JULY 7, 2025

By Karsten Shein Comm-Inst Climate Scientist QNE, QNH, and QFE describe different altitudes for different phases of flight, but also serve as pressure altitude (QNE) or density altitude (QNH). As a result, air density at 18,000 ft is roughly half of what it is at the surface, and only around 1/10 at FL500.

Density Altitude

Plane and Pilot

JULY 1, 2025

Investigators noted at the time of the accident the temperature was 30 degrees Celsius, the dew point was 4 C, and the altimeter setting was 29.98. The calculated density altitude was 4,790 feet. The pilot reported that there were no preaccident mechanical malfunctions or failures that would have precluded normal operation.

Density Altitude

Pilot Institute

MAY 4, 2024

Temperature An increase in temperature will increase the density altitude. A high density altitude decreases the performance of the engine and the wing. Your aircraft will fly at a faster true airspeed at higher density altitudes. This can greatly impact landing performance and obstacle clearance.

Weight-Shift-Control

iPad Pilot News

MARCH 27, 2025

Altimeter+ Calculates the altitude of your current location via GPS, or from the built-in barometer included on newer iPhones and iPads.Offers Apple Watch app. AltitudeAlert This handy app delivers the functionality of an altitude preselect and alerting system in the form of a convenient iPad and iPhone app.

Weather

Air Facts

AUGUST 5, 2024

Outside of the marine layer that incessantly taunts the coastal areas, back home your experiences with density altitude are minimal. The weather is VMC but it’s hot, and the density altitude is really creeping up there. In the time it took me to write all of this, the Density Altitude moved up to 8000’!

Density Altitude