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- Speed of Sound Calculator Vs. Cold WXR Altitude Correction
Speed of Sound Calculator vs Cold WXR Altitude Correction Uso e estatísticas
Speed of Sound Calculator is a physics/math calculator used to determine how the speed of sound in water or air changes with temperature.
Features:
- Instant calculation
- Results are copyable to other apps
- Formulas are included as references
- Supports up to 16 decimal places
- Supports various units for each input
The velocity of sound in air (ideal gas) can be expressed as:
c = √(γ * R * T / M)
where:
c - Speed of sound in an ideal gas
R - Molar gas constant, approximately 8.3145 J · mol⁻¹ · K⁻¹
γ - Adiabatic index, approximately 1.4 for air
T - Absolute temperature
M - Molar mass of the gas. For dry air, it's about 0.0289645 kg/mol
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Cold Weather Altitude Correction is a tool for visualizing and calculating approaches at low temperatures.
In addition you will find a decoder for METAR RWY Reports.
The calculation is based on ICAO PANS OPS Doc 8168.
It uses a more accurate method as the well-known 4 per correction, which becomes imprecise for temperatures below -15°C.
Conventional tools are calculating only a list of temperature corrected altitudes. This tool is designed more closely to a real approach. Corrected altitudes are presented in a graphical interface. A table of distances with related corrected altitudes can be calculated.
With only field elevation and temperature a graphic layout will be shown:
- glide path down to the runway
- corrected MSA
- corrected MDA
- corrected GPA
- corrected custom ALT
Moving a yellow dot along the glide path down to the runway will show any corrected altitudes with their related distances to threshold or to a DME station.
Distance - Altitude Table:
A table with distance and corrected altitude can be calculated.
This table is similar to the distance / altitude tables known from instrument approach charts, but it will show corrected altitudes.
You can choose between an approach type based on "distance to threshold" (GPS) or based on a defined DME station.
A handbook is included in the app itself.
For night operations you can switch to dark mode.
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Speed of Sound Calculator versus Cold WXR Altitude Correction comparação de classificação
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Speed of Sound Calculator VS.
Cold WXR Altitude Correction
janeiro 6, 2025