Aviation news analysis
50 SKY SHADES - World aviation news

Airplane performance

Date: 28 Oct 2015 10:58
Author:

Many accidents are occurred because pilots failed to understand the effects that varying conditions can have on aircraft performance.

In addition to those of W&B, others, such as density altitude, humidity, winds, runway gradient, and runway surface conditions, all can profoundly influence how an airplane performs.

–Density Altitude

Air density can effect airplane performance because it has a direct bearing on the power output of the engine, the efficiency of the propeller, and the lift generated by the wings.

When the air temperature increases, the density of air decreases and, as altitude increases, the density also decreases. From this combination of occurrences, then, comes the term “density altitude“.

Because it can get a little confusing, remember that a decrease in air density means a high-density altitude. Or said another way, it means that because the air is thinner than standard, the air at a given altitude has the characteristic of air at some higher altitude. The thinner air, in turn, adversely affects lift, engine power, fuel consumption, and overall engine efficiency. Conversely, an increase in air density means a lower-density altitude (the air is becoming thicker, heavier, more dense), and the aircraft lift as well as engine performance is more efficient. Saying it once again, it means that the altitude takes on the characteristics of a higher altitude because the density is lower, and thus the air is thinner.

(to be continued)



Loading comments for Airplane performance...

Recommended

World Aviation News in App Store Top!

We are celebrating new achievement! 13 of July our iOS application - World Aviation News gets in Apple Store top apps in news category and gets huge count of downloads! We are very happ...

Attention - job for flight attendants

CJSC Azerbaijan Airlines (AZAL) announces admission of documents from females for flight attendant position. The documents will be received from 10:00 to 12:00, from November 22 to December 22.The...

FLYING ECHO PHOTO MAGAZINE APRIL 2018

https://www.manuelbelleli.com/2018/03/25/flying-echo-april-2018/

Dubai Airport - Year to date traffic nears 37 million passengers.

Things just keep getting busier at Dubai, the Pearl City of the Gulf. Dubai International (DXB) welcomed over 36.9 million passengers at DXB in the first five months of this year. The&n...

Effect of Humidity and Wind

–UmidityBecause of evaporation, the atmosphere always contains moisture in the form of water vapor. This water vapor replaces molecules of dry air, and, because water vapor weights less than dry air,...