50 SKY SHADES - World aviation news

Airplane performance

Date: 28 Oct 2015 14:58 (UTC)
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

Dassault Falcon news at NBAA

Dassault went to NBAA with biofuel and Falcon 6X Advances to Initial ProductionDassault Aviation is participating in the Sustainable Aviation Jet Fuel (SAJF) initiative being held at this year’s Natio...

Aviation Marketers: Which Agency type is the best fit for you ?

Not so easy to choose a Marketing/Communication Agency when it's not your field. CEO are often focusing on production and profitability but Marketing is also a part of a virtuous cycle. No need to hid...

AVIAPRENEURS EPISODE WITH Mr. Mikey McBryan

Join Dr. Adnan Baranbo in the 19th Episode of AVIAPRENEURS talking about Producing Social Media Aviation Reality Show features the General Manager at Buffalo Airways and the Owner of Plane Savers YouT...

9th Annual Civil Aircraft Industry International Forum

9th Annual Civil Aircraft Industry International Forum Held in conjunction with 6th Annual China Aeronautical Materials and Process Summit September 12th - 13th, 2018Chengdu, China Host...

The 7th Annual China Aviation Training International Forum 2022

【Hosted by】Civil Aircraft Operation Support Technology Sub-committee of CSAAShanghai Society of Aeronautics【Supported by】Langfang Municipal People's Government Beijing Daxing International Airport...

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,...