![]() ![]() Similar to how a prevailing low pressure would reduce the amount of air we can work with.ĭense air (high pressure and low temperature) is good for aircraft performance, whether you are in a fixed wing aircraft or a helicopter. A higher temperature reduces the ‘amount’ of air in the atmosphere i.e density. With Density Altitude however, we add a layer of realism by also taking into account that the temperature might be really high. This is because pressure reduces as altitude increases. ![]() If the QNH is higher than 1013, the 1013 level will be above MSL. If the QNH is lower than 1013 (like in the example below), the 1013 level will be below MSL. It shows us our altitude above or below the 1013 HPa level. With the PA, we take the fact that pressure is different in real life than in the models for the “standard” atmosphere, and correct for that. Your use of this application is at your sole risk.So let’s start with the basics, what is it exactly? In simple terms, Density Altitude (DA) is the pressure altitude corrected for temperature, but what does that even mean? It’s simply the altitude the aircraft ‘thinks’ it is currently flying at.ĭA goes 1 step further than Pressure Altitude (PA). The service is not intended for use in situations in which the failure of the service could lead to death, personal injury, or severe physical or environmental damage. Users should always contact official sources for the most accurate and timely updates. We love feedback! Email us at Altitude+ uses available third party weather and elevation data to calculate atmospheric measurements, but Rate Of Climb does not guarantee that the original sources (including the National Weather Service, FAA and others) have provided data that is accurate, complete, timely, or properly formatted. Great tool for pilots, drag racers, engine tuners, golfers, or anyone who needs to conveniently find their Density Altitude, Altimeter Setting, Relative Aid Density (RAD), Specific Humidity or Absolute Pressure. Designed not to need an internet connection, so it will work anytime and anywhere you need it. If you're out of cell range, all you need to supply is the outside air temperature. If you're in cell range, you don't need to supply any data. The quickest way to get your Density Altitude! On the iPhone 6/6+ and newer iPads, it will use the built-in barometer and GPS. * Location Search: Find atmospheric data (Density Altitude, etc.) at any point on Earth, from anywhere!ĭata Sensed and Calculated (all calculated with humidity): Great without cellular connection as well, which makes it all the more useful in the backcountry and far away from ASOS/AWOS stations. * Takes humidity into account in all calculations, making it more accurate than the typical dry bulb approximation formula used by AWOS/ASOS, etc. * Seamlessly integrates weather data, GPS and your phone's onboard barometer to quickly and accurately calculate your density altitude, altimeter setting, relative air density, and more. Many other uses for engine tuning, racing, sports, etc. Super useful for pilots, especially in the backcountry. ![]() Instant and location accurate Density Altitude calculator/instrument app for iPhone and iPad that also finds relative air density (RAD), altimeter setting, relative humidity, specific humidity (grains/lb) and more. ![]()
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