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Understanding Different Types of Altitudes

Northstar VFR

This ensures everyone is reading the same altitudes. Density Altitude Density altitude is my personal favorite, and the reasoning is simple. It’s the altitude at which your airplane thinks it's at. When checking your ATIS (or AWOS/ASOS), sometimes you’ll hear at the very end “Density Altitude feet”.

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What Are Common Part 107 Test Questions?

Flying Magazine

2: What effect does high density altitude have on the efficiency of a UA propeller? Density altitude does not affect propeller efficiency. 1: To avoid a possible collision with a manned airplane, you estimate that your small UA climbed to an altitude greater than 600 feet agl. Example question No.

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Unstable approaches

Professional Pilot

The GOM also called for the airspeed to be “on target” at such altitudes respectively. The combined effects of high density altitude, published gradients, and optical illusion of a down-sloping runway at night all indicate a higher probability of an unstable approach. The ceiling is 800 ft overcast.

Approach 105
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Aviation at the leading edge of science

Air Facts

higher density altitude), because water molecules (molecular weight = 18) displace either nitrogen or oxygen molecules. He died when it blew up at an altitude of 3,000’ AGL. A cubic foot of air weighs slightly more than 14 times the weight of a cubic foot of hydrogen. The leading edge of science can be dangerous.

Lift 98
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What Is Ground Effect?

Pilot Institute

While calculating an aircraft’s performance, you must take into account ground effect, particularly when operating on short runways or in high-density altitude areas. For example, a Cessna 172 with a 36-foot wingspan will begin to experience ground effect between 30 and 36 feet Above Ground Level (AGL).

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Unbolted in Fairfield (Update on the 2022 Bell 407 GXP Crash)

Fear of Landing

At approximately 30-40 feet agl, the spinning stopped and the helicopter appeared to stabilize for a brief moment before continuing a nose-low, forward descent into the grass north of Runway 28. When it stopped climbing, the helicopter maneuvered erratically drifting towards the north and descending. As it descended it spun around 2-3 times.

Torque 89
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Mastering Short Field Landings (A Step-by-Step Guide)

Pilot Institute

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. x V SO (or POH recommendation) by around 500 feet AGL.