A power-driven vessel under way sounds one prolonged blast not less than every two minutes. However if it is less than 12meters in length it is not required to give any signal.
one prolonged blast
one prolonged blast
the power driven vessel needs to give-way for sailing ships.
one prolonged blast
One prolonged blast
one prolonged blast
One prolonged blast
one prolonged blast
A power driven vessel is often understood to be a mechanically driven boat. Human power as in rowing or wind driven power is not usually considered power driven.
one prolonged blast
one prolonged blast