Helwig F. Van Der Grinten
Is your anchor dragging?
Navy Can't Bar Cupid from Ships
Dallas Morning News
Finding Faults in Cruise Ship Grounding Professional Mariner
Notes on Shiphandling
The Accuracy of Celestial Fixes as Compared to NAVSAT Positions
Navigation Journal of the Institute of Navigation, Vol 22, No2, Summer 1975
Below are just a few of the publications I wrote.
Copyright © Helwig F. Van Der Grinten. All Rights Reserved