NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Brian Walton
Date: 2024 Nov 29, 04:42 -0800
The date of the photo in my last post should have been 18 Oct 24. Too many photos to choose from, on a small iPad.
The flight planel shows the time as 1033.01 Z. Also shown are 2 DME readings which can be plotted to N50°46" W00°50", on the South coast of England. Also visible, is the Sun's ray striking flat across the panel through a hole in the glareshield, sloping down from the red master switch. The Sun must have been directly on the the port beam, at an elevation of about 30°, judging by the wings level artificial horizon, and a bearing of heading minus 90°. I have never noticed this before.
With GHA and Dec, a reduction can be made using the slide rule in shot. The Hc and Zn confirm what the panel is showing. It is a lot easier to run through the Bygrave procedure when you already know the rough answer. I shall try and do the same thing again on the next flight. An astro plane!
