Blundell Harling NATO Speed-Time-Distance Calculator hydrographic department some sailed by the most

some sailed by the most notable sailors of the day

– Sandy Duker

This edition includes the latest official UKHO Digital

Choosing the right boat

Blundell Harling NATO Speed-Time-Distance Calculator hydrographic department some sailed by the mostThe Blundell Harling Speed Time Distance Slide Rule is a practical navigation tool designed to simplify essential maritime calculations. By inputting any two variablesspeed, time, or distanceyou can quickly determine the third, facilitating efficient voyage planning and real time decision making. Crafted with a high impact plastic outer sleeve, this slide rule ensures durability and longevity, even in demanding marine environments. Its compact size