Plotting Sheets and Harbor Charts SAIL magazine

Selecting Visual Aids to Navigation SAIL magazine

Mylar as an Aid for Navigators SAIL magazine Updated 2004

Tracing Paper can Help Radar Navigation Boating magazine Updated 2004


Underwater Design—A Look at the Options Small Boat Journal

Book Reviews

Running Fix By Tony Gibbs. The New York Times, August 5, 1990

Longitude By Dava Sobel. The New York Times, November 19, 1995


They call them clippers Flight Ops, Pan American Airways, July 1975

Pacific Golden Plover SAIL magazine