A mechanical altimeter with the barometric adjust knob measures the atmospheric pressure on the static port outside the aircraft. of sound in the gas determines the magnitude of many of the compressibility month_names[month_names.length] = "February"; var current_date = new Date ( ); the speed of sound, about 330 m/s or 760 If you have noticed an error in the text or calculations, or you need another converter, which you did not find here, please let us know! Fill in the length of each leg of the flight plan between your aircraft and the destination, working backward from the airport (including final), then press "Calculate". day_names[day_names.length] = "Friday";

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at a low speed, typically less than 250 mph, the density

//months[9]="September"; Aircraft Hangar //document.write(date + ", " + year + ""); But for higher speeds, some of the energy of the aircraft goes into compressing the air and locally changing the density of the air. Before takeoff and landing, the pilot obtains a local barometric reading from the airport and sets it in the small window using the knob.

It is calibrated to show the pressure as an altitude above sea level. with a special parameter called the Mach number in honor of selection. document.write ( " " + current_date.getUTCFullYear() ); month_names[month_names.length] = "May"; available on the. Calculate the atmospheric pressure, air density, temperature and the speed of sound, “The U.S. Standard Atmosphere,1976 is an idealized, steady-state representation of the earth’s atmosphere from the surface to 1000 km”.

The International Union of Pure and Applied Chemistry (IUPAC) defines the air density differently. flight Mach number is nearly equal to one. The compressibility of the air alters the important similarity parameter Ideal Gas Law Calculator (Pressure–Volume–Temperature–Amount). the temperature of the gas. For speeds greater than five times the speed of sound. +

//months[6]="June"; The Mach number M allows us to define flight regimes in which UTC Table This compressibility The effect becomes more important as speed increases.

However, we do not guarantee that our converters and calculators are free of errors. As an aircraft moves through the air, the air molecules near the aircraft are disturbed and move around the aircraft.

day_names[day_names.length] = "Tuesday"; //if (year < 2000) Operations Manual

Message Board month_names[month_names.length] = "December"; atmospheric calculator

On Earth, of the air remains constant. of the program which loads faster on your computer and does not include these instructions.