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    Nav-L Survey Results
    From: Dan Hogan
    Date: 2001 Jun 13, 6:43 AM

    All:
    
    This is the survey result. As you would expect those with more experience or a
    technical interest in navigation tend to use more than one method. There was
    not enough response to make any significant analysis. A couple of people
    replied twice. I included any new material in their survey replies.
    
    So take a look and lets create some discussion.
    
    Dead Reckoning - Just about all the Sailings are used, both calculated and in
                     tables.
    
    Sight Reduction - Also no clear favorite method, other than the trend toward
                      electronic calculation.
    
    Plotting - The big favorite seems to be the Universal Plotting Sheets.
    
    Bowditch - 1995 Edition is a major reference, probably because of its low cost
               and availability.
    
    Commercial Almanac- Is a favorite probably for low cost. Which is why I use
                        it. Next popular is computer program generated almanacs.
    
    
    
    Members: 182
    Survey Response: 21
    Percentage: 11.5%
    
    ***************************************************
    
    Navigation-L Survey
    
    a) Dead Reckoning
    
    
    
            What is the method used most?
    
        Mid-Latitude-----: 7
        Mercator Sailing-: 7
        Rhumb Line-------: 8
        Other(Name?)-----: 2 Great Circle, 1 Cockpit Plotter, 1 Trig Tables
                           1 Bowditch Tables, 1 Traverse Table, 1 Navigator Lt.,
                           1 D = T x S, 1 Nories Tables
    
    b) Sight Reduction
    
            Which is your primary Sight reduction method?
    
        Computer Program(Name?)--------: 2 self design, 1 Navig96b, 1 Spreadsheet
                                         2 Navigator Lt., 1 The Cap'n,
                                         1 Sightmaster III
    
        Calculator(Name?)--------------: 4 HP-48, 4 Scientific, 1 StarPilot,
                                         1 non-programmable, 1 HP38
        Short Navigation Tables
            H.O. 211 etc.(Name?)-------: 6 211, 1 208, 1 Air Tables(?)
    
        Standard (Inspection) Navigation Tables
            229, 214 etc.(Name?)-------: 3 229, 1 214, 1 229, 1 229 SmallBoat,
                                         4 249, 1 ABC Tables
    
        Other(Name?)-------------------: 1 Nautical Almanac Tables, 1 Lunars,
                                         1 cosine-haversine
    
    c) Plotting
    
       How do you do your plotting?
    
        Computer Program(Name?)---: 1 Self Design, 1 Navig96b, 1 xfig,
                                    1 Davis Astro Navigator, 1 The Cap'n
        Universal Plotting Sheets-: 8
        Manoeuvring Board---------: 4
        Radar Plotting Sheets-----: 1
        Home Made(Describe)-------: 3 Lined Paper, 1 QED
    
    d) Navigation Manuals
    
       Name your main reference manual:
    
            Bowditch 1995 Ed.-----------------------: 9
            Bowditch (pre-1995)---------------------: 6
            Mixter (Primer of Navigation)-----------: 6
            Chapman's-------------------------------: 3
            Celestial Navigation for Yachtsman------: 4
            Shute-----------------------------------: 1
            Shirk-----------------------------------: 1
            Porter----------------------------------: 1
            Hemenway--------------------------------: 1
            Dutton's--------------------------------: 4
            Hobbs-----------------------------------: 1
            Turner - Celestial for the Cruising Nav.: 1
            Admiralty Manual, Vol. II---------------: 1
    
    
        Name a manual/book that helped you the most:
    
            W.F. Buckley {at} Airborne/Video----------: 1
            Dutton---------------------------------: 3
            Le Cours des Glenans-------------------: 1
            Bowditch-1995--------------------------: 5
            Bowditch-pre 1995----------------------: 2
            Practical Celestial Navigation(HO 229)-: 3
            Self-Contained Celestial Navigation----: 2
            Mariner's Celestial Navigation---------: 2
            Navigation Afloat----------------------: 1
            Cruising Under Sail (E. Hiscock)-------: 3
            Shute----------------------------------: 1
            Williams - Geometery of Navigation-----: 1
            Shirk----------------------------------: 1
            Porter---------------------------------: 1
            Hemenway-------------------------------: 1
            Mixter---------------------------------: 2
            USPS-----------------------------------: 1
            Turner, Celestial for the Cruising Nav.: 1
    
    
    
    e) Do you use the Nautical Almanac?
    
            Commercial-----------: 10
            USNO-----------------: 3
            Self-design Software-: 2
            Computer-------------: 5
            USNO Web Site--------: 2
            I.C.E.---------------: 2
    
    
    Dan Hogan WA6PBY
    C27 "Gacha"
    dhhogan{at}verimail.com
    Nav-L Page: http://www.wa6pby.com
    

       
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