3 – Three (Tree)
Tree is a signal that indicates the number 3 in communication between vessels or personnel. This signal can be conveyed visually using hand signals or flags or verbally over the radio. Clear and accurate communication is important to ensure safety and efficiency in maritime operations.
Flag
Number Pennant Three (3)
Nautical or signal flags are used at sea to convey long-range messages. Only black, blue, red, white and yellow are used because these are the only colours readily distinguished at sea. Many different coding schemes have been used, but the International Code is the most common.
