Erosion of beaches can expose less resilient soils and rocks to wind and wave action leading to undermining of coastal headlands eventually resulting in catastrophic collapse of large quantities of overburden into the shallows. This material may be distributed along the beach front leading to a change in the habitat as sea grasses and corals in the shallows may be buried or deprived of light and nutrients.
World War II, like World War I, brought new life to the airline industry. Many airlines in the Allied countries were flush from lease contracts to the military, and foresaw a future explosive demand for civil air transport, for both passengers and cargo. They were eager to invest in the newly emerging flagships of air travel such as the Boeing Stratocruiser, Lockheed Constellation, and Douglas DC-6. Most of these new aircraft were based on American bombers such as the B-29, which had spearheaded research into new technologies such as pressurization. Most offered increased efficiency from both added speed and greater payload.
Soon after, in early 1985, the company received the first two of its leased Lockheed L-1011 aircraft. One aircraft was used to launch Hawaiian's first scheduled operation out of Hawaiʻi, daily Honolulu-Los Angeles services. This new service put Hawaiian in direct competition with the major US air carriers for the first time in its history. Throughout 1985 and 1986, Hawaiian Airlines added additional L-1011s to its fleet and used them to open up services to other West Coast gateway cities such as San Francisco, Seattle, Portland, Las Vegas, and Anchorage, which placed Hawaiian in further competition against the major US airlines.