Chart(s): Plotting Sheets, Any Atlas

Sight Reduction and 
Dead-Reckoning problem     Leg 32  073097   Test your knowledge!

----------------------     ------  ------   --------------------

At 24:00:00ZT on 28/06/1996 our EP was (12d 37.9'N  60d 31.0'E).
Our plotted TC is 123.2d  Speed 8Kts, Current Drift 9 Kts @ Set 86d. Var0dw Dev2dW.


1) What is the Speed Made Good(SMG)?
   What is the Compass Course Made Good(CCMdGd)?
-- ---------------------------------------------

Using the SMG and our TC.

2)  What is our Estimated Position(EP) at 0800ZT on 28/06/1996?
--  -----------------------------------------------------------

3)  From this DR what is the TC and Dist to the Mali' Waypoint
    (04d 10.0'N  73d 30.0'E?
--  ----------------------------------------------------------

At Noon We get a break in the clouds and get a LAN sight of the
Sun. Use the DR for 12:00:00ZT this date.

4)  What is the Zone Time(ZT) of Meridian Passage of the Sun?
--  ---------------------------------------------------------

5)  What is the Zone Description?
--  -----------------------------

|6)  What is the Noon LAT if the Sun's Hs was 74d 08.3'?
--  ---------------------------------------------------

7)  What is the differance in Lat?
    Is the LAN N or S of our DR?
--  ------------------------------

8) What is the DR at 19:00:00ZT, using the Q3 TC and SMG?
-- -----------------------------------------------------


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. Water Tank = 60 gal(Imp.). Fuel Tanks = 90 gal (Imp.). Fuel
consumption .450 gal/Hr at 8.3 Kts.

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 Navigation List Working Group=-

        Peter Smith  - psmith@wellspring.us.dg.com
        Ron Legere   - ronald.legere@yale.edu
        Tony Severdia- anthonys@ix.netcom.com
        Wes Muffin   - wmurfin@onslowonline.net (Cartographer)
        John Simmonds- mobi@netconnect.com.au
        Dan Hogan    - dhhogan@lightside.com
        
