Metal parts underwater are subjected to two basic types of corrosion: galvanic corrosion and stray current corrosion. Both can harm your boat, propeller, and motor if not correctly monitored and avoided.
According to Flags Unlimited, the significance of the flag's colors is this: The Blue represents the officer and the courage they find deep inside when faced with insurmountable odds. The Black background was designed as a constant reminder of our fallen brother and sister officers.
The colors of the flag have symbolic meanings behind them. Red represents fire, aggression, and blood. Black represents the infinite, the mysterious, the unified, and the definitive. Green represents fertility, productivity, and prosperity. Since the flag was created, many African nations have adopted its colors as symbols of their sovereignty.