Blundell Harling NATO Speed-Time-Distance Calculator hydrographic department This edition includes the latest

This edition includes the latest official UKHO Digital

with Chris featuring as a history expert on TV and radio

Choosing the right boat

some sailed by the most notable sailors of the day

This straightforward guide is designed to take the novice step-by-step through the stages of designing both power and sailing boats

Blundell Harling NATO Speed-Time-Distance Calculator hydrographic department This edition includes the latestThe 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