NavList:

At 06:40 and 26:25 see the sun compass in action.

https://www.youtube.com/watch?v=dgH5fmwASs0

Greg Rudzinski

From: Geoffrey Kolbe
Date: 2016 Jan 27, 10:50 +0000

Back in 1999 Sir Robin, as part of a BBC series "Secrets of the Ancients" navigated a reproduction Viking ship from Norway to Shetland. I was very impressed at his skill in reading the waves and his general observations skills, which are the hallmark of a great navigator. This is a quote from the website http://www.bbcactivevideoforlearning.com/1/TitleDetails.aspx?TitleID=23403.

"Sir Robin Knox-Johnston, tests these navigational skills and leads a voyage across the North Sea from Norway
to Shetland without modern magnetic compass or chart. He tries out the only piece of navigation equipment he thinks they may have had - a sun-compass.This wooden disc with a central hole and notches along the outer edge and a pin fixed in the centre may have acted as a compass; casting a shadow from the sun which would help seafarers head in the right direction. Sir Robin and the rest of the crew are amazed at the accuracy of this simple tool which, along with the aid of some fair winds, brings them safely to their  destination."

Geoffrey Kolbe