Re: [Nml] DR
Subject: Re: [Nml] DR
From: Thomas Schmidt (schmidt@XXX.XXX)
Date: Tue Feb 23 1999 - 04:09:09 EST
Dan Hogan wrote:
...
> In my hard drive double crash of '98 I lost most of my tips and hint
> for Silicon Sea. If anyone has the definitions list please post it.
>
> Any how from now on:
> DR = position based on distance = time x speed
> EP = DR plus the correction for current.
...
Your wish is my command...
> Subject: [Nml] Silicon Sea Navigation Glossary
> Date: Sat, 4 Apr 1998 17:13:08 -8
> From: "Dan Hogan" <dhhogan@XXX.XXX>
> To: navigation@XXX.XXX
>
>
> ALL Silicon Sea'ers:
>
> The following is the glossary used for the Silicon Sea
> navigation cruise problems. The names as used in the problems
> assume these definitions.
>
> Dan Hogan WA6PBY
> "Gacha" Catalina 27
> dhhogan@XXX.XXX
>
> **************************
>
> Greenwich Mean Time(GMT)-- same as Universal Coordinated Time(UCT),
> or ZULU Time.
>
> True Course(TC)-- The direction to travel, from a point of departure
> to a destination/waypoint, plotted on a chart in
> relation to true north (of course meridians of
> longitude run north).
>
> Magnetic Course(MC)-- The true course corrected for variation.
>
> Compass Course(CC)-- The magnetic course corrected for deviation.
>
> Compass Course Made Good(CCmg)-- The compass heading with
> corrections for variation, deviation and current
> have been applied. Same as: COURSE TO STEER/COURSE
> STEERED, etc. Or whaever term your calculator or
> program uses for the course steered by the compass
> to a destination.
>
> Compass Bearing-- A bearing taken with the ships compass.
>
> Handbearing-- A bearing taken with a handheld compass.
>
> Speed(S)-- The speed of the boat through the water. Knotmeter
> reading, etc.
>
> Speed Made Good(SMG)-- Speed corrected for the effect of current.
>
> Set-- The direction to which the current is flowing.
>
> Drift-- The speed of the current in Knots.
>
> mi-- Nautical mile(s).
>
> Dead Reckoning Position(DR)-- The position as calculated by
> Speed/Time/Distance.
>
> Estimated Position(EP)-- The DR corrected for the effect of
> current.
--
-------------------------------------------------------------------
Thomas Schmidt e-mail : schmidt@XXX.XXX
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