The ship was passing the island at a distance and if the island was marked on its navigatonal charts it would probably have been logged as being uninhabited (which it was before the boys landed there). If the signal fire on the mountain top had been lit and producing smoke that may well have attracted the attention of the ship and it may have decided to investigate. As things stood, the ship had no reason to investigate the island.
In "Lord of the Flies," the boys were unable to signal the passing ship because Jack and his tribe had neglected their duty to tend the signal fire. When the boys needed to alert the ship, the fire had gone out, and the opportunity to be rescued was missed.
The boat which Ralph glimpsed in the distance did not rescue the boys simply because it did not know they were there. The island was undoubtedly marked on its navigatonal charts as being uninhabited. The boys on fire duty had deserted their post and allowed the fire to go out. So, there was no smoke to attract the attention of the ship's lookout and make him think that perhaps there might be someone on the island afterall.
Ralph..
...Now, if you'll excuse me, I have to go take a hot shower, its like a regular shower, but with me in it ;D
Their fire had gone out.
The boys looked for their own smoke to signal the ship but it had gone out.
Jack and the hunters were suppose to watch the fire, but instead they went hunting. The fire went out and there was no signal, failing to signal the ship.
it did not see them
In "Lord of the Flies," the children are saved when a naval officer arrives on the island after witnessing the fire that the boys set to signal for help. The officer rescues the boys from the chaos and violence that had consumed them during their time stranded on the island.
They are naked. They had been swimming when Ralph saw the smoke from the ship, then they ran up the mountain toward the signal fire, not taking the time to dress.
There was nothing for the ship to respond to. If the island was on the ship's charts it would have been marked as uninhabited (which is was before the arrival of the boys) so the ship would have had no reason to visit it. The signal fire had gone out so there was no smoke to attract the attention of the ship to the fact that there were people on the island.
There is no character named "percinal" in "Lord of the Flies." However, in Chapter 4 of the book, the boys try to keep a signal fire burning to attract passing ships, but it goes out and a ship passes by without noticing them. This missed opportunity causes the boys frustration and disappointment as they are stuck on the island.
Percival Wemys Madison is the boy who fell asleep and let the signal fire go out in "Lord of the Flies" when a potential rescuing ship passed overhead. His failure to keep the fire going leads to a missed opportunity to be rescued, adding to the boys' sense of despair and isolation.
The ship you signal is the ship that gives you the island medallion.
Ralph believes that Jack saw a ship
The island is set on fire in "Lord of the Flies" when Jack and his tribe light the signal fire to smoke out Ralph and force him out of hiding. This act marks the climax of the novel as the chaotic events reach their peak.
Ralph said that a ship could see the smoke from up there and rescue them.