Density Altitude Explained - [Definition, Aircraft performance implications and how to calculate it]
1.8 هزار بار بازدید -
4 سال پیش
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In this video, we are
In this video, we are going to talk about the Density Altitude.
By the end of this video, you will know what the Density Altitude is, what are the implications on your aircraft performances and how to calculate it.
In order to understand in full the density altitude, you need to know what the pressure altitude (video about the pressure altitude at the end of this description).
The Density Altitude is the Pressure Altitude corrected by the temperature, but why is so important to correct the pressure altitude by the temperature?
It is important because temperature plays a big role in your aircraft's performance.
So, you need to know if the temperature around your plane is colder or warmer than the Standard ICAO one (15deg at mean sea level).
With high temperatures, at constant pressure, you have less density and with less density, your aircraft performance will be worse, the opposite is also true.
So, if you take the same airport with the same QNH in winter and you compare it with a summer day with the same QNH you will notice that you will need a longer runway in order to take off.
The density works inversely to the temperature. At constant pressure the higher the temperature the lower the density.
In order to calculate the Density Altitude of your aircraft you need to know that for each 1-degree Celsius of temperature deviation, the aircraft will feel 120ft of altitude deviation.
If, for example, the temperature at mean sea level is 16 deg Celsius (thus 1 degree warmer) the Aircraft will feel that it is at 120ft higher even though it is at the mean sea level.
Once you know the ISA deviation, you multiply it by 120 and then, add it or subtract it, to your pressure altitude.
If you want to know how to calculate the pressure altitude watch the video below:
Pressure Altitude - [What it is, How ...
If you want to know more about the QNH and the pressure references watch the video below:
QNH, QFE and QNE - [Altitude, Height...
For the International Standard Atmosphere video click below:
ISA Atmosphere - International Standa...
If you feel like donating to the PILOTCLIMB channel you can send a PayPal or a crypto transaction to the addresses below:
PayPal address: https://www.paypal.me/PilotClimb
Bitcoin address: 3DMaWztGYufX9WH33hSVNouwVpMEBA6m1t
Etherium address: 0x486fcA0234e2950D2068d1171379F5Efb36B911A
#PILOTCLIMB
==============================================================
Disclaimer:
THIS VIDEO IS FOR ENTERTAINMENT PURPOSES ONLY.
NOT FOR REAL-LIFE OPERATIONS.
PLEASE REFER TO THE OFFICIAL MANUAL AND DOCUMENTATION.
==============================================================
By the end of this video, you will know what the Density Altitude is, what are the implications on your aircraft performances and how to calculate it.
In order to understand in full the density altitude, you need to know what the pressure altitude (video about the pressure altitude at the end of this description).
The Density Altitude is the Pressure Altitude corrected by the temperature, but why is so important to correct the pressure altitude by the temperature?
It is important because temperature plays a big role in your aircraft's performance.
So, you need to know if the temperature around your plane is colder or warmer than the Standard ICAO one (15deg at mean sea level).
With high temperatures, at constant pressure, you have less density and with less density, your aircraft performance will be worse, the opposite is also true.
So, if you take the same airport with the same QNH in winter and you compare it with a summer day with the same QNH you will notice that you will need a longer runway in order to take off.
The density works inversely to the temperature. At constant pressure the higher the temperature the lower the density.
In order to calculate the Density Altitude of your aircraft you need to know that for each 1-degree Celsius of temperature deviation, the aircraft will feel 120ft of altitude deviation.
If, for example, the temperature at mean sea level is 16 deg Celsius (thus 1 degree warmer) the Aircraft will feel that it is at 120ft higher even though it is at the mean sea level.
Once you know the ISA deviation, you multiply it by 120 and then, add it or subtract it, to your pressure altitude.
If you want to know how to calculate the pressure altitude watch the video below:
Pressure Altitude - [What it is, How ...
If you want to know more about the QNH and the pressure references watch the video below:
QNH, QFE and QNE - [Altitude, Height...
For the International Standard Atmosphere video click below:
ISA Atmosphere - International Standa...
If you feel like donating to the PILOTCLIMB channel you can send a PayPal or a crypto transaction to the addresses below:
PayPal address: https://www.paypal.me/PilotClimb
Bitcoin address: 3DMaWztGYufX9WH33hSVNouwVpMEBA6m1t
Etherium address: 0x486fcA0234e2950D2068d1171379F5Efb36B911A
#PILOTCLIMB
==============================================================
Disclaimer:
THIS VIDEO IS FOR ENTERTAINMENT PURPOSES ONLY.
NOT FOR REAL-LIFE OPERATIONS.
PLEASE REFER TO THE OFFICIAL MANUAL AND DOCUMENTATION.
==============================================================
4 سال پیش
در تاریخ 1399/09/03 منتشر شده
است.
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