NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: A Sun-compass landfall?
From: Tony Oz
Date: 2021 Apr 9, 05:10 -0700
From: Tony Oz
Date: 2021 Apr 9, 05:10 -0700
Dear Gary,
I can see the flaw in my "method": if the headwind makes my groundspeed == zero, I'll never reach the destination despite my plane stays wing-to-the-Sun-wise.
So, for the "Sun-compass landfall" to work, the plane must have very certain speed - not slower than some minimum. If it were lightning fast, we'd reach the destination along the approach LoP at once.
How does this minimum speed depend on the circumstances?
Regards,
Tony
60°N 30°E
