Blundell Harling NATO Speed-Time-Distance Calculator hydrographic department This second edition features revised

This second edition features revised and expanded content

– Sandy Duker

insightfully woven

Her story is a testament to resilience

This edition includes the latest official UKHO Digital

Blundell Harling NATO Speed-Time-Distance Calculator hydrographic department This second edition features revisedThe 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