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    Re: Hughes explanation of Chichester's navigation.
    From: UNK
    Date: 2014 Dec 5, 10:58 -0000

    Way to go boys! Wish I could come! Unfortunately grounded, but hope to be well enough for calm water day sailing to Scilly Isles in the spring.

    Re: Chichester flight and pre-computed Hps. I bow to your superior knowledge Gary, but I’m a bit confused. In his Astro-Nav  war time training book part 4 page 32, he recounts the flight as an example of “running down a position line”. He then clearly states that Alts and Az were pre-computed for expected times and APs to give a mock LOP and  the actual LOP drawn parallel to this, separated by the time difference. Hughes, page 54 also mentions that he used the Bygrave to pre-compute Alts and Az to obtain a datum position line through the AP.

    Either way, I’ll try your method +/- the Alts/time graph or Moo/mob. And see what I get.

    Good flying boys!



    From: NavList@fer3.com [mailto:NavList@fer3.com] On Behalf Of Greg Rudzinski
    Sent: 05 December 2014 02:36
    To: francisupchurch---.com
    Subject: [NavList] Re: Hughes explanation of Chichester's navigation.



    Sounds like a plan and a good excuse to put a few hours on your new plane.




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