Corrected Altitude

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ch85us2001
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Corrected Altitude

Postby ch85us2001 » Sun Jun 04, 2006 10:27 pm

Hello.

I work on a Top Sportsman/Quick 16 car that runs out to National Trail Raceway and the Larer part of NHRA Div. 3. I'm also into computer programming. Heres my question.

Alright. Basically, I'm building a "poor mans weather station" for the PC. So instead of having to shell out almost 700 bucks for one of these bad boys (yes, I've used one, but wasnt that impressed.), you will be able to use my software on your PC or Laptop for a modest fee instead.

I've got most of the code written, but heres where I really need some outside help.

Does anyone know the formula for determining the corrected altitude?

I know this hovers around 3700' to 4000' at 900' Trails.

Search Engines havent helped me much at all.

Thanks in Advance. :D

JohnDougherty
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Postby JohnDougherty » Mon Jun 05, 2006 12:33 am

This website has lots of weather related formulas,
http://wahiduddin.net/calc/calc_hp_abs.htm

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John_Heard
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Postby John_Heard » Mon Jun 05, 2006 8:11 am

I've been using this one - http://www.ambientweather.com/ke40hawestgr.html We compared it against the PerformAire a week ago and they were very similar in readings. Density Altitude was a bit different with the PerformAire reading a bit higher than the Kestral. Sorry I don't know the calculation for it either, but welcome to the site.

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gearjammer
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Postby gearjammer » Tue Jun 13, 2006 12:23 pm

My wife keeps telling me I need to correct my Attitude as well


Whats up John, how ya been
Phil aka Gearjammer
JPR Racing
1972 Nova
Drag Radial

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John_Heard
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Postby John_Heard » Tue Jun 13, 2006 1:29 pm

You'd better listen to her Phil, I hear she has your number LOL.. I'm good, itching to get back out at the track again and do some testing.

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gearjammer
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Postby gearjammer » Tue Jun 13, 2006 2:30 pm

Beyond wrote:You'd better listen to her Phil, I hear she has your number LOL.. I'm good, itching to get back out at the track again and do some testing.


Sounds like your well on your way, good job keep up the good work. All my projects are on hold right now, need to finish the home remodeling and helping my friends out with their stuff.
Phil aka Gearjammer
JPR Racing
1972 Nova
Drag Radial

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gearjammer
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Postby gearjammer » Tue Jun 13, 2006 2:31 pm

John,

What size tire are you running now
Phil aka Gearjammer
JPR Racing
1972 Nova
Drag Radial

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John_Heard
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Postby John_Heard » Tue Jun 13, 2006 2:45 pm

MT 28x10.5w's, biggest tire we can run in our class.

dorsey Perkins
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Calculations

Postby dorsey Perkins » Mon Aug 28, 2006 3:29 pm

Ready?

Here is a site for much neede weather info. http://www.srh.noaa.gov/elp/wxcalc/form ... itude.html :shock:


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