FlipCards / Flash Cards Style:Sounds & Lights How to use accurate pressure

How to use accurate pressure in marine navigation is also explained with practical examples

SOUND & LIGHT SIGNALS - 47 cards in the pack This pack of Flip Cards illustrates the signals made by ships at sea

Edition 28 May 2026

to represent all the language or tribal or nation groups of the indigenous people of Australia

FlipCards / Flash Cards Style:Sounds & Lights How to use accurate pressureCODE FLAGS 41 cards in the pack Each card shows a flag of the International Code in colour on the face, with the signal letter or number and the meaning of the signal flag on the reverse. The phonetic spelling of the letter is also shown, making the set doubly useful. Although no longer required by some yachting authorities, professional seamen and navies still need knowledge of flag signals. Also in the set is a useful instruction card. IALA BUOYAGE