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Then there's Captain Sumner's landfall by single LOP in 1837. The
extract from his log is terse and tense - maybe 400 words. Gripping.
Used to be in older editions of Bowditch. I don't find it though in my
1977.  -Hewitt

On 8/2/09, glapook@pacbell.net  wrote:
>
>  also see:
>
>  http://www.geocities.com/fredienoonan/chichester.html
>
>  gl
>
>
>
>
>  On Aug 2, 5:57 pm, "glap...@pacbell.net"  wrote:
>  > Here are links to prior posts on Chichester's navigational procedures:
>  >
>  > http://fer3.com/arc/m2.aspx?i=108625
>  >
>  > http://fer3.com/arc/m2.aspx?i=108623
>  >
>  > gl
>  >
>  > On Aug 2, 5:35 pm, "glap...@pacbell.net"  wrote:
>  >
>  > > "It was a fourteenth the size of the smallest compulsory landfall made
>  > > by an
>  > > aeroplane. From New Zealand it presented a target half a degree in
>  > > width. And my
>  > > compass, recently swung twice on that bearing, had varied 9 degrees
>  > > during the
>  > > interval; further, it was nothing to drift 30 degrees in a stiff wind.
>  > > And since
>  > > an error in the course of only 5 degrees meant passing the island 50
>  > > miles away,
>  > > it was plain I could only depend on the sun to find it.
>  >
>  > > "Instead of heading direct for the island, I altered course 10 degrees
>  > > for a
>  > > point 90 miles to the left of it. Flying towards this imaginary point,
>  > > I must
>  > > observe the sun carefully until it gave me the exact bearing of
>  > > Norfolk Island
>  > > on my right, and showed me to be on the line through point and island.
>  > > I must
>  > > then immediately turn to the right and head direct for the island.
>  >
>  > > "I must make no mistake and turn neither a minute too soon nor a
>  > > minute too
>  > > late."
>  >
>  > > Seaplane Solo, Francis C. Chichester, 1934.
>  >
>  > > The offset had nothing to do with a possible error in the sextant
>  > > reading which
>  > > he needed to be accurate enough to put him on the LOP through Norfolk
>  > > close
>  > > enough to spot the island. The offset related to the possible error in
>  > > the DR
>  > > after traveling almost 600 miles.
>  >
>  > > The book is great, very exiting and well written
>  >
>  > > Also see the topic Single LOP landfall procedure at my 
website:http://www.geocities.com/fredienoonan/
>  >
>  > > gl
>  >
>  > > On Aug 1, 6:26 pm, Tom Sult  wrote:
>  >
>  > > > Gary....
>  > > > Sounds like a great day at the Aerodrome!  I also am a pilot, and
>  > > > would love a copy of the book.  If you can email it to ts...@mac.com
>  > > > Thanks.
>  > > > Thomas A. Sult, MD
>  > > > IntegraCare Clinicwww.icareclinics.com
>  > > > ts...@charter.net
>  >
>  > > > On Jul 31, 2009, at 8:59 PM, Gary LaPook wrote:
>  >
>  > > > > My interest in the Bygrave was triggered by my reading Sir Francis
>  > > > > Chichester's account of flying a Moth, open cockpit single engine
>  > > > > airplane across the Tasman Sea in 1931 doing celnav on the way to find
>  > > > > two tiny islands where he could refuel, each leg about 500 nautical
>  > > > > miles. Today, at Headcorn Aerodrome in England, I had the
>  > > > > opportunity to
>  > > > > fly the same type of aircraft and my admiration for Chichester
>  > > > > increased
>  > > > > ten fold. It is a very light aircraft so it is bounced around a lot my
>  > > > > even the lightest turbulence. The controls are very sensitive,
>  > > > > especially in pitch, so it takes a lot of concentration to keep the
>  > > > > plane flying straight and level. It is also very noisy and the wind
>  > > > > blows vigorously through the cockpit. I don't know how Chichester
>  > > > > managed to do it, flying the plane, shooting sun lines with  a marine
>  > > > > sextant, doing the computations with the Bygrave (holding it
>  > > > > horizontally so it didn't get blown out of the cockpit), estimating
>  > > > > drift angle, and plotting the LOPs and the drift lines. I recommend
>  > > > > this
>  > > > > book, Seaplane Solo, to everybody and I can email a copy to anyone who
>  > > > > is interested.
>  >
>  > > > > gl
>  >
>  >
>  >
>

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