Timeline for Calculation of temperature correction for altimeter
Current License: CC BY-SA 4.0
8 events
| when toggle format | what | by | license | comment | |
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| Jul 21, 2022 at 15:22 | comment | added | Sacha | T aerodrome = 273K, T isa = 288K. so dT = 15K. Applying the correct formula (see Namsters' answer below) gives 15/0.001981 * ln (1+ 1.981/288) = 51.90ft (since dH aerodrome = 0). The table from PANS OPS Doc 8168 uses an approximation which works for temps above -15C (4 times the alt above the aerodrome in thousands of feet, times dT which equals 60). | |
| Jan 25, 2021 at 4:55 | answer | added | Namster | timeline score: 1 | |
| Jan 25, 2021 at 1:55 | comment | added | Juan Jimenez | I agree, you are mixing temperature scales (K and C) and hence your incorrect result. | |
| Jan 24, 2021 at 16:26 | history | edited | Namster | CC BY-SA 4.0 |
added 336 characters in body
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| Jan 24, 2021 at 4:34 | comment | added | skipper44 | Infact 288degK at 0 ft altitude is = 15degC = ISA, so intended dev from ISA seems to be zero for purpose of the example question. | |
| Jan 24, 2021 at 3:09 | comment | added | Ralph J♦ | 259 degree temp dev from ISA is unreasonable by an order of magnitude. You may be mixing C and K units there. Please fix that & edit your question accordingly. | |
| Jan 24, 2021 at 2:27 | review | First posts | |||
| Jan 24, 2021 at 3:10 | |||||
| Jan 24, 2021 at 2:23 | history | asked | Namster | CC BY-SA 4.0 |