NavList:

The Bygrave item number on e-bay was 120376129968. I guess that they are fairly rare in North America because the U.S. didn't use them during the war. Did they have anything like it at that time?

 

Picky is good. Thanks for the sight/site correction. I used my sights to calculate where my site is. My mother tongue and I still screw up. Add an American spell checker to Canadian education and it gets even odder.

 

Thanks for the correction table. I do want to take an actual sight from an aircraft some day just to say I did it.

 

In general with my A-12, I am usually able to get my LOP within 1 to 3 miles of my Actual Position. These results keep getting more consistent the more I practice, and I imagine that is about the best I can expect with an a-12.  I am trying to find a gentle way to clamp it to a tripod to lessen the human error a bit.  Sometimes during a night of good sites, I will get some whopping errors, and I think this is the human factor.

 

My Mark V seems to have the potential to be more accurate, but I still need to repaint the bubble lighting system. I have found a workaround for now. I have a little flashlight that I use to reflect a little light through the sextant, and that allows me to see the bubble but not wash out the star. 

 

 

 

Cheers

 

Bruce Hamilton