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ICAO standard atmosphere programs for HP-41C - Printable Version

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ICAO standard atmosphere programs for HP-41C - Ranieri - 02-21-2020 08:30 PM

Here is a selection of programs I wrote for my HP-41CV. I hope you will find these program useful. ICAO standard atmosphere programs to determine air temperature, pressure and density (maximum height 11'000m):

TZ: AIR TEMPERATURE

Calculates air temperature [K] at height X [m]
Result shown in X

Code:

01 LBL"TZ"
02 0.0065
03 *
04 CHS
05 288.15
06 +
07 END

PZ: AIR PRESSURE

Calculates air pressure [Pa] at height X [m]
Result shown in X

Code:

01 LBL"PZ"
02 0.0000226
03 *
04 CHS
05 1
06 +
07 5,256
08 Y^X
09 101325
10 *
11 END

ROZ: AIR DENSITY

Calculates air density [Kg/m^3] at height X [m]
Result shown in X

Code:

01 LBL"ROZ"
02 0.0000226
03 *
04 CHS
05 1
06 +
07 4,256
08 Y^X
09 1,225
10 *
11 END