Don Casey - Dragged Aboard Storm Tactics Handbook:
Modern Methods of Heaving-To for Survival in Extreme Conditions
by Lin Pardey and Larry Pardey


      

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Re: cosine/haversine method


Subject: Re: cosine/haversine method
From: Ron Pippin (ron@XXX.XXX)
Date: Sun Feb 11 2001 - 18:06:04 EST


H = Altitude
Ho= Observed altitude
Ha= Apparent altitude
Hc= Computed altitude

Ron Pippin
Nassau Bay, Texas

-----Original Message-----
From: Navigation Mailing List [mailto:NAVIGATION-L@XXX.XXX]On
Behalf Of Chuck Taylor
Sent: Sunday, February 11, 2001 12:06
To: NAVIGATION-L@XXX.XXX
Subject: Re: cosine/haversine method

Gennaro Sammarco wrote:
>
> Hi Chuck,
> can you please tell me what t, d and h stand for?
> Thank you
> Gennaro

t = Meridian Angle
d = Declination
h = Computed Altitude

Meridian angle (t) is similar to Local Hour Angle (LHA), except that t
is measured in the closer direction (E or W), whereas LHA is always
measured to the west.

Chuck Taylor
Everett, WA, USA





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