Fine sediment transported from lower down the beach profile will compact if the receding water percolates or soaks into the beach. Compacted sediment is more resistant to movement by turbulent water from succeeding waves. Conversely, waves are destructive if the period between the wave crests is short. Sediment that remains in suspension when the following wave crest arrives will not be able to settle and compact and will be more susceptible to erosion by longshore currents and receding tides. The nature of sediments found on a beach tends to indicate the energy of the waves and wind in the locality.
I’ve talked with a lot of pilots over the years, both men and women who fly for major carriers like American and British Airways. For the most part, they are very nice people. But, when they tell us to do something, we have to obey because a pilot's word is law on a plane. The good news is, their biggest concern is for our safety. In that spirit, here's a list things passengers should never do. Don't... Continue reading
Inter-Island Airways (Hawaiian: Hui Mokulele Piliʻāina), the forerunner of the airline which is now known as Hawaiian Airlines, was incorporated on January 30, 1929. Inter-Island Airways, a subsidiary of Inter-Island Steam Navigation Company, began operations on October 6, 1929, with a Bellanca CH-300 Pacemaker, providing short sightseeing flights over Oʻahu.[14][15] Scheduled service began a month later on November 11 using Sikorsky S-38s with a flight from Honolulu to Hilo, via intermediary stops on Molokaʻi and Maui.[16]
In recognition of the essential national economic role of a healthy aviation system, Congress authorized partial compensation of up to $5 billion in cash subject to review by the U.S. Department of Transportation and up to $10 billion in loan guarantees subject to review by a newly created Air Transportation Stabilization Board (ATSB). The applications to DOT for reimbursements were subjected to rigorous multi-year reviews not only by DOT program personnel but also by the Government Accountability Office[46] and the DOT Inspector General.[47][48]
Toward the end of the century, a new style of low cost airline emerged, offering a no-frills product at a lower price. Southwest Airlines, JetBlue, AirTran Airways, Skybus Airlines and other low-cost carriers began to represent a serious challenge to the so-called "legacy airlines", as did their low-cost counterparts in many other countries.[42] Their commercial viability represented a serious competitive threat to the legacy carriers. However, of these, ATA and Skybus have since ceased operations.
Dense vegetation tends to absorb rainfall reducing the speed of runoff and releasing it over longer periods of time. Destruction by burning or clearance of the natural vegetation tends to increase the speed and erosive power of runoff from rainfall. This runoff will tend to carry more silt and organic matter from the land onto the beach and into the sea. If the flow is constant, runoff from cleared land arriving at the beach head will tend to deposit this material into the sand changing its color, odor and fauna.
In the 1950s, the De Havilland Comet, Boeing 707, Douglas DC-8, and Sud Aviation Caravelle became the first flagships of the Jet Age in the West, while the Eastern bloc had Tupolev Tu-104 and Tupolev Tu-124 in the fleets of state-owned carriers such as Czechoslovak ČSA, Soviet Aeroflot and East-German Interflug. The Vickers Viscount and Lockheed L-188 Electra inaugurated turboprop transport.