NavList:

   

Reply

Tony,
For the eccentric minority who like to use mechanical, non electronic time 
pieces, I have details on 2 affordable (under $100), automatic, modern build 
watches with regular, chronometer type  going rates.
Please use private email and I can send more details.
Best wishes
Francis

-----Original Message-----
From: NavList@fer3.com [mailto:NavList@fer3.com] On Behalf Of Tony Oz
Sent: 23 February 2017 23:14
To: francisupchurch@gmail.com
Subject: [NavList] Re: The ultimate celestial navigation time piece

As Frank has correctly guessed about me being a technophobe (to some extent) - 
I'm trying to avoid everything electric/electronic/modern. More so - in the 
field of Emergency Navigation.
I'm modelling a replacement handle - a grip rather - for my sextant. This grip 
is thought to be a thick roundish plastic board (approx the size of ping-pong 
bat) with holes for all five fingers separated around the central area, where 
a split-system stop-watch (mechanical, of course!) will sit - face to the 
palm. An index finger will be aligned at the split/resume button.
I intend to do it like this:
  -- with some reference watch I am to start the stop-watch at a full minute of UTC;
  -- to write down that time in a log-book;
  -- to shoot a sight and press the split/resume button freesing one of the 
stop-watch arms - to be able to write down the stop-watch readings without 
any hurry - along with the sextant's reading;
  -- having the angle and time interval readings properly recorded - to press 
the split/resume button again (preparing the stop-watch for the next sight) 
and proceed with the sighting as described in the previous step;
  -- when finished with all the sights - to use the reference watch to stop 
the stop-watch on some full minute of UTC;
  -- to write down that reference watch readings;
  -- to use the recorded stop-watch intervals to place the sextant readings on 
the UTC time-scale accordingly.

I guess this is how it is/was done by serious navigators.
The only question remains - where a techophobe gets a reliable mechanical 
"reference watch" (for little money, I mean)?
:)
Regards,
Tony

[plain text auto-generated]
----------------------------------------------------------------
NavList message boards and member settings: http://fer3.com/NavList
Members may optionally receive posts by email.
To cancel email delivery, send a message to NoMail[at]fer3.com
----------------------------------------------------------------
----------------------------------------------------------------


: 
http://fer3.com/arc/m2.aspx/ultimate-celestial-navigation-time-piece-TonyOz-feb-2017-g38410

   

Reply