Port and starboard vessel's starboard side by green and its port side by red. Aircraft are lit in the same way. Port and starboard Port and starboard are nautical and aeronautical terms of orientation that deal unambiguously with the structure of vessels and aircraft. Their structures are largely bilaterally symmetrical, meaning they have mirror-image left and right halves if divided long-ways down the middle. One asymmetric feature is that on aircraft and ships where access is at the side, this access is usually only provided on the port side. To understand which is which, when a person is facing the bow on a
Ambrose Light (ship) fire a shot over the vessel's bow when a Colombian ensign was observed and "Ambrose Light" came to a halt. Commander Clark put Lieutenant M. Fisher and a boarding party on the rebel ship and it was found to have been armed with one cannon and sixty heavily armed sailors. A large cache of ammunition was also discovered. The Colombians revealed their letter of marque from the rebel leader Pedro Lara, giving the men of "Ambrose Light" permission to blockade Cartagena. Commander Clark disregarded this and took the rebels prisoner and the brigantine as a prize. The ship was put