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$Dov Kruger: Re: Q: how to calculate refraction at higher altitudes on land?$ $Craig Scott: Re: Q: how to calculate refraction at higher altitudes onland?$

Re: refraction at higher altitudes on land?
From: Cliff Sojourner
Date: 2002 Feb 28, 10:22 -0800

HO 249 and HO 229, and a bunch of other fun stuff, are available on-line as
.pdf files.  you can find them here:

http://pollux.nss.nima.mil/pubs/

for refraction corrections, look at table 6 in

http://pollux.nss.nima.mil/NAV_PUBS/SRTA/Pub249/Vol_2/SRTA_flier.pdf

Cliff
--
these are the good old days
Cliff Sojourner          cls@employees.org

----- Original Message -----
From: "Nigel_Gardner" 
To: 
Sent: Thursday, February 28, 2002 07:11
Subject: Re: refraction at higher altitudes on land?


> There is a table in HO 249 giving refractions for altitude, which I could
> copy for you, but that assumes you are using an artificial horizon. The
Air
> Almanac has (or did have) a table  for dip against height but I do not
have
> one to hand any more.
>
> NG
>

$Dov Kruger: Re: Q: how to calculate refraction at higher altitudes on land?$ $Craig Scott: Re: Q: how to calculate refraction at higher altitudes onland?$

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