Hangar

From Encyclopedia Jr, free information reference for Kids

A cutaway diagram of a hangar.

A hangar is a metal, wooden, or concrete structure designed to hold aircraft in protective storage. Hangars may be used to protect aircraft from weather or enemy attack, when undergoing repairs, or when not in use. In some cases, hangars may be used to prevent satellites and spy planes from photographing the aircraft, or they may be used to prevent people from observing the aircraft.

Some very large hangars have been constructed to house dirigibles during refueling and boarding. Hangars may be on land or on ships (aircraft carrier vessels have hangars). The word hangar comes from a northern French dialect, and means "cattle pen."

[edit] History

1935 advertisement for REIDsteels' hangars.

The Wright Flyer outside the aircraft's makeshift hangar.

Carl Rickard Nyberg used a hangar to store his Flugan in the late 19th century and early 20th century.

In 1909, Louis Bleriot crash-landed on a northern French farm in Les Baraques (between Sangatte and Calais) and rolled his monoplane into the farmer's cattle pen. At the time, Bleriot was in a race to be the first man to cross the English Channel in a heavier-than-air aircraft, so he set up headquarters in the unused shed. After returning home, Bleriot called REIDsteel, the maker of the cattle pen, and ordered three "hangars" for personal use. REIDsteel continues to make hangars and hangar parts.

The Wright brothers stored and repaired their airplane in a wooden hangar they constructed in 1902 at Kill Devil Hills in North Carolina for their glider. After completing design and construction of the Wright Flyer in Ohio, the brothers returned to Kill Devil Hill only to find their hangar damaged. They repaired the structure and constructed a new workshop while they waited for the Flyer to be shipped.

[edit] Airship hangars

Six helium-filled blimps stored in one of the two hangars at the former Marine Corps Air Station in Tustin, California.

Airship hangars (also referred to as "airship sheds") are generally larger than conventional airplane hangars (particularly in terms of their overall height). Most early airships used hydrogen gas to provide them with sufficient buoyancy for flight, so their hangars had to provide protection from stray sparks in order to prevent the flammable gas from exploding. Hangars that held multiple craft of this type were at risk from chain-reaction explosions. For this reason, most hangars for hydrogen-based airships were sized to house only one or two such craft.

With World War I on the horizon, hangar design had to keep pace with advances in aviation technology. Airships were becoming a standard for transoceanic travel. The Germans used Zeppelins to bomb Paris and London, while the British used blimps (non-rigid airships) to patrol their coasts.

During the "Golden Age" of airship travel, mooring masts and sheds were constructed around the world. The largest of these, at the Goodyear Tire and Rubber Company in Akron, Ohio, was used for the construction of the USS Akron (ZRS-4) and USS Macon (ZRS-5). Its length was 1,175 ft (358 m) and its roof soared to 200 ft (61 m). Airship sheds survive at Moffett Field and Cardington, Bedfordshire.

The US Navy established a total of ten "lighter-than-air" (LTA) bases across the United States during World War II as part of the coastal defense plan, which required the construction of some of the world's largest freestanding wood structures. Seven of the original seventeen hangars still exist, with one of them now housing the Tillamook Air Museum in Tillamook, Oregon.

[edit] Gallery

Hangars can be used to hold fixed-wing aircraft, rotary-wing aircraft (helicopters), and lighter-than-air ships

Hangar No. 2 at the former Marine Corps Air Station in Tustin, California measures 1,072 feet long by 292 feet wide by 192 feet tall

An Airbus A 319 is being repaired inside a maintenance hangar.

[edit] External links

• Aircraft Hangars at BuildingsGuide.com
• Aircraft Hangars at AviationHangars.Org
• Marine Corps Air Station, Tustin at the California Military Musem official website
• Nick Challoner's photo history of British Hangars
• REIDsteel company website