Geometric altitude Solution

STEP 0: Pre-Calculation Summary
Formula Used
Geometric Altitude = Absolute Altitude-[Earth-R]
hG = ha-[Earth-R]
This formula uses 1 Constants, 2 Variables
Constants Used
[Earth-R] - Earth mean radius Value Taken As 6371.0088
Variables Used
Geometric Altitude - (Measured in Meter) - Geometric altitude is the altitude as measured from the mean sea level.
Absolute Altitude - (Measured in Meter) - Absolute Altitude is the altitude as measured from the center of the earth.
STEP 1: Convert Input(s) to Base Unit
Absolute Altitude: 6374008.8 Meter --> 6374008.8 Meter No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
hG = ha-[Earth-R] --> 6374008.8-[Earth-R]
Evaluating ... ...
hG = 3000
STEP 3: Convert Result to Output's Unit
3000 Meter --> No Conversion Required
FINAL ANSWER
3000 Meter <-- Geometric Altitude
(Calculation completed in 00.004 seconds)

Credits

Created by Vinay Mishra
Indian Institute for Aeronautical Engineering and Information Technology (IIAEIT), Pune
Vinay Mishra has created this Calculator and 300+ more calculators!
Verified by Shikha Maurya
Indian Institute of Technology (IIT), Bombay
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14 Atmosphere and Gas Properties Calculators

Mach Number given Dynamic Pressure
Go Mach Number = sqrt((2*Dynamic Pressure)/(Ambient Air Density*Heat Capacity Ratio*Specific Gas Constant*Static Temperature))
Ambient Air Density given Mach Number and Temperature
Go Ambient Air Density = (2*Dynamic Pressure)/(Mach Number^2*Heat Capacity Ratio*Specific Gas Constant*Static Temperature)
Temperature given Dynamic Pressure and Mach Number
Go Static Temperature = (2*Dynamic Pressure)/(Ambient Air Density*Mach Number^2*Specific Gas Constant*Heat Capacity Ratio)
Gas constant given dynamic pressure
Go Specific Gas Constant = (2*Dynamic Pressure)/(Ambient Air Density*Mach Number^2*Heat Capacity Ratio*Static Temperature)
Equivalent Airspeed given Static Pressure
Go Equivalent Airspeed = Sonic Speed at Sea Level*Mach Number*(Static Pressure*6894.7573/Static Sea Level Pressure)^(0.5)
Geometric altitude for given geopotential altitude
Go Geometric Altitude = [Earth-R]*Geopotential altitude/([Earth-R]-Geopotential altitude)
Geopotential altitude
Go Geopotential altitude = [Earth-R]*Geometric Altitude/([Earth-R]+Geometric Altitude)
Mach Number given Static and Dynamic Pressure
Go Mach Number = sqrt(2*Dynamic Pressure/(Static Pressure*Heat Capacity Ratio))
Ambient Pressure given Dynamic Pressure and Mach Number
Go Static Pressure = (2*Dynamic Pressure)/(Heat Capacity Ratio*Mach Number^2)
Ambient air density given mach number
Go Ambient Air Density = 2*Dynamic Pressure/(Mach Number*Sonic Speed)^2
Ambient air density given dynamic pressure
Go Ambient Air Density = 2*Dynamic Pressure/(Flight Speed^2)
Lapse rate
Go Lapse Rate = Change in Temperature/Altitude difference
Geometric altitude
Go Geometric Altitude = Absolute Altitude-[Earth-R]
Absolute altitude
Go Absolute Altitude = Geometric Altitude+[Earth-R]

Geometric altitude Formula

Geometric Altitude = Absolute Altitude-[Earth-R]
hG = ha-[Earth-R]

Why do we need to define a standard atmosphere?

Standard atmosphere is defined in order to relate flight tests, wind tunnel tests
general airplane design and performance to a common reference.

How to Calculate Geometric altitude?

Geometric altitude calculator uses Geometric Altitude = Absolute Altitude-[Earth-R] to calculate the Geometric Altitude, The Geometric altitude is obtained as the difference between absolute altitude and the mean radius of the earth. Geometric Altitude is denoted by hG symbol.

How to calculate Geometric altitude using this online calculator? To use this online calculator for Geometric altitude, enter Absolute Altitude (ha) and hit the calculate button. Here is how the Geometric altitude calculation can be explained with given input values -> -6367008.8 = 6374008.8-[Earth-R].

FAQ

What is Geometric altitude?
The Geometric altitude is obtained as the difference between absolute altitude and the mean radius of the earth and is represented as hG = ha-[Earth-R] or Geometric Altitude = Absolute Altitude-[Earth-R]. Absolute Altitude is the altitude as measured from the center of the earth.
How to calculate Geometric altitude?
The Geometric altitude is obtained as the difference between absolute altitude and the mean radius of the earth is calculated using Geometric Altitude = Absolute Altitude-[Earth-R]. To calculate Geometric altitude, you need Absolute Altitude (ha). With our tool, you need to enter the respective value for Absolute Altitude and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
How many ways are there to calculate Geometric Altitude?
In this formula, Geometric Altitude uses Absolute Altitude. We can use 1 other way(s) to calculate the same, which is/are as follows -
  • Geometric Altitude = [Earth-R]*Geopotential altitude/([Earth-R]-Geopotential altitude)
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