Timeline for If absolutely nothing changes except temperature, does indicated altitude increase, decrease, or stay the same?
Current License: CC BY-SA 4.0
18 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Nov 12, 2021 at 18:44 | answer | added | agiigi | timeline score: 0 | |
| Aug 13, 2021 at 22:13 | answer | added | wbeard52 | timeline score: 1 | |
| Aug 13, 2021 at 15:42 | answer | added | Robert DiGiovanni | timeline score: 1 | |
| Aug 13, 2021 at 11:39 | answer | added | Krauss | timeline score: 0 | |
| Aug 5, 2021 at 16:22 | comment | added | user22445 | Check this image out. It may help in your understanding. 4.bp.blogspot.com/-aLf5lfwqpXk/Uw0Fk-b60yI/AAAAAAAAAEI/… | |
| Aug 5, 2021 at 15:42 | comment | added | Mike Sowsun | What you are missing is that when you are given an airport altimeter setting, it takes into account ALL variables and your altimeter will read correctly for the airport you are at. | |
| Aug 5, 2021 at 14:21 | comment | added | user59676 | Charles Bretana, your answer implies that temperature change given constant pressure does not change the indicated altitude. but this link seems to say that it does. It appears to say warmer conditions make indicated altitude report lower than true, given constant pressure. What am I missing? | |
| Aug 5, 2021 at 4:46 | history | became hot network question | |||
| Aug 5, 2021 at 3:46 | comment | added | Charles Bretana | Pressure is a measure of the mass (weight) of air above you. If the only change is that the temperature increases, then the column of air above you is taller (air will expand), but it still masses (and weighs) the same. | |
| Aug 5, 2021 at 1:46 | comment | added | Zeus | If "absolutely nothing changes", then pressure doesn't change, then pressure altitude doesn't change by definition. QED. (If we ignore thermal expansion of the internal components of the altimeter, but it is generally unpredictable how this would affect indication). | |
| Aug 5, 2021 at 0:00 | history | tweeted | twitter.com/StackAviation/status/1423071265800302597 | ||
| Aug 4, 2021 at 23:07 | comment | added | user22445 | Simply put, your basic altimeter measures the existing ambient air pressure where it is currently located in the atmosphere and mechanically compares that value to what ever is set in the kollsman window using a scale of (roughly) 1 inch hg equals 1000 feet. So, if your altimeter is set to 30.00 hg and the altimeter is physically located in the atmosphere where the ambient pressure is 25.00 hg, the "indicated" altitude will be (roughly) 5000 feet. That's it. | |
| Aug 4, 2021 at 22:17 | answer | added | BowlOfRed | timeline score: 3 | |
| Aug 4, 2021 at 21:54 | answer | added | user22445 | timeline score: 4 | |
| Aug 4, 2021 at 21:42 | comment | added | user59676 | Robert, I have seen others on stack exchange say this is correct: link and it shows that in warm conditions, indicated altitude reports lower than true. What say you? | |
| Aug 4, 2021 at 21:08 | history | edited | user59676 | CC BY-SA 4.0 |
added 3 characters in body
|
| Aug 4, 2021 at 20:42 | review | First posts | |||
| Aug 4, 2021 at 23:39 | |||||
| Aug 4, 2021 at 20:39 | history | asked | user59676 | CC BY-SA 4.0 |
