LOL Tenspace, no worries. I take flying seriously. Wether it's flying the Cessna or the Boeing 747, I do not make barrel rolls lmao . As of making barrel rolls, that will damage the plane and would cost me millions of $$$ to fix. I even started a serious company in FsPassengers to test my business and reputation skills if I can really be prepared for real business. (Yes, I do plan on making my own airline when time lets me). I just want to note to everyody that I am gateful that my uncle introduced me to FlightSim, otherwise I wouldn't have been here.
barometer - altimeter:
They are dependent of one another. barometer is the actual pressure meter (ex. 29.92). Altimeter, depending on the barometric pressure, is the "responder" to the barometer and gives the initial altitude based on the initial barometric pressure.
Including what Myth said.
Captain El
This is posted on April 1 so if I am wrong..
Air pressure is actually the weight of all the air above you pressing down upon you. (Exactly like water pressure underwater, but much lower in magntiude since air is much less dense!). Therefore the higher up you go, the less the pressure you feel since there is now less air above you. Hence a reliable way of measuring altitude in the old days was by measuring air pressure, that is by using a barometer that is calibrated in feet/meters of altitude instead of inches of mercury.
Now the flop side is that atomspheric conditions also affect air pressure. So on a clear day when the local pressure at sea level may be high, such altimeters will read lower altitudes than actual, while on stormy days when the local pressure on the ground may be low, altimeters will read a higher than actual altitude. Hence to factor out these atmospheric differences from the measurement, altimeters were disigned to record differential pressure, calibrated in altitude. In other words, barometric pressure at your position minus barometric pressure at sea level, calibrated in altitude. And it is this local barometric prssure at sea level value that you are entering as 2985 or 2992 or whatever the ATC gives you (2992 actually stands for 29.92 inches of mercury, the accepted standard atmospheric pressure at sea level - if someone wants I can also describe what is this inches of mercury thing ).
This is how I understand the working of an altimeter, but someone please correct me if I am wrong.
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. As of making barrel rolls, that will damage the plane and would cost me millions of $$$ to fix. I even started a serious company in FsPassengers to test my business and reputation skills if I can really be prepared for real business. (Yes, I do plan on making my own airline when time lets me). I just want to note to everyody that I am gateful that my uncle introduced me to FlightSim, otherwise I wouldn't have been here.
