Noon Sight and 
Dead-Reckoning problem     Leg 20  101896   Test your knowledge!
----------------------     ------  ------   --------------------

The date is 05/06/96, GMT is 03-47-37. And our current DR position is
(32d 49.9'N  26d 30.4'E).

1)  What is the GMT time of start of Morning Nautical Twlight(MNT)?
    What is the GMT of Sunrise(SR)?
--  ---------------------------------------------------------------

2)  Can we take a round of sights at the present time?
--  --------------------------------------------------

We plan for the Noon Sight using the nearest whole minute of time
between our last DR and our estimated time of the Sun's Meridian Passage.

3)  By Almanac, what is the Local Time of Meridian Passage?
--  -------------------------------------------------------

4)  What is our DR position estimate to use for predicting the time
    of Meridian Passage?
--  ---------------------------------------------------------------


5)  What will is the ZONE TIME (ZT) of Meridian Passage at this
    DR position?
--  -----------------------------------------------------------

6)  At what GMT time will Meridian Passage occur?
--  ---------------------------------------------

At Local Apparent Noon (LAN) we take an altitude of the SUN of
(79d 49.4')

7)  What is our calculated Estimated Position(EP) at NOON?
--  -------------------------------------------------------

8)  What is the Azimuth(Zn) of the Sun?
--  -----------------------------------

Note:
Lat & Lo = XXd XX.X', Date=DD/MM/YY, HE 8 Feet, Index correction -.2', Time
hh-mm-ss in UTC/GMT. Silicon Sea is a medium displacement sailing vessel, 40
Feet LOA. 38 Feet LWL; Cutter rigged. Looks a lot like a Mason. Can tack to
45d. Dist to Horizon: Nmi = SQRT HE@mtrs x 2.07; Nmi = SQRT HE@ft x 1.17.

PLEASE respond with your results and thinking on these exercises to the
NAVIGATION list at large. If you have questions or problems, A lot of folks
on the list are knowledgeable and willing to help. Any questions or doubtful
areas will be responded to promptly. Let us hear from you soon!

Good Navigating!

   -=The Navgation List Working Group=-

        Peter Smith  - psmith@wellspring.us.dg.com
        Ron Legere   - ronald.legere@yale.edu
        Tony Severdia- anthonys@ix.netcom.com
        Dan Hogan    - dhhogan@lightside.com
        Wes Murfin   - cn1907@coastalnet.com (Cartographer)


