Aces High Bulletin Board
General Forums => The O' Club => Topic started by: Strip on March 04, 2010, 11:14:45 AM
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Can I compute the corrected density altitude, ie DA corrected for relative humidity?
If I know...
Barometer
Temperature
Humidity
If not what other data do I need to know?
This is going to be going into an excel program and I need to know the formula. Everything I have found online has been calculated as dry air. I have figured out that formula in excel but I want a little more accuracy. Forgive me if I used the wrong terminology though.....
Thanks,
Strip
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http://tinyurl.com/yjupzq6
;)
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Always one in the crowd....
This is going to be going into an excel program and I need to know the formula. Everything I have found online has been calculated as dry air.
Again, I need the formula, not a calculator, and the formula needs to be in corrected DA. Everything I found on Google fits only one of those criteria. I have already looked at five of the first ten searches your entry gave me. Two hours of searches later I have five DA formulas, none accounting for humidity though.
Strip
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does this help?
http://www.tpub.com/content/aerographer/14269/css/14269_74.htm
or this?
http://www.4wx.com/wxcalc/formulas/densityAltitude.php
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the first link is all ya need............ took me 10 seconds to find it ........ has both formulas dry/humid
http://lmgtfy.com/?q=density+humid+air+formula+wiki (http://lmgtfy.com/?q=density+humid+air+formula+wiki)
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the first link is all ya need............ took me 10 seconds to find it ........ has both formulas dry/humid
http://lmgtfy.com/?q=density+humid+air+formula+wiki (http://lmgtfy.com/?q=density+humid+air+formula+wiki)
well, i have an idea of what he's lookin for......but i used to have a small "computer" that constantly measured the temp conditions, and it would give me the da,