From the reading "Cargo Cult Science," explain "why the planes don't land" to a typical islander who might ask, in a few sentences.
Although the islanders have used their skills in order to replicate an "airport" to the best of their knowledge, they are lacking the necessary technology to summon the planes to their bamboo-version of an aircraft-landing center. They would have needed more information to successfully attract a passing plane with cargo supplies. During the war, planes may have used this particular island for re-fueling stations, but now the planes find no need to fly over this island. The islanders set up their version of what was there before, but the islanders are lacking electricity, technology, communication devices, a proper runway, ect. (all of which are found in a modern airbase). The locals of the island anticipate the materials of a plane that will never come, unless they improve their island airport. If the islanders would try to communicate with SOS signs, such as large beach fires, they might attract a plane with this method as well.