Categories:

• Earth and the Environment
  • Atmosphere and Weather
  • Biographies
  • Ecology and Environmentalism
  • Geography
  • Geology and Oceanography
  • Minerals, Mining, and Metallurgy
• History
  • Ancient Greece and Rome
  • Asia and Africa
  • Australia, New Zealand, and the Pacific
  • Biographies
  • Historians and Chronicles
  • Latin America and the Caribbean
  • Modern Europe
  • United States and Canada
• Literature and the Arts
  • Art and Architecture
  • Biographies
  • Classical Literature, Mythology, and Folklore
  • Fashion, Design, and Crafts
  • Journalism and Publishing
  • Language, Linguistics, and Literary Terms
  • Literature in English
  • Literature in Other Modern Languages
  • Performing Arts
  • Scholars and Historians
• Medicine
  • Anatomy and Physiology
  • Biographies
  • Diseases and Conditions
  • Divisions, Diagnostics, and Procedures
  • Drugs
  • Psychology
• People
  • History
  • Literature and the Arts
  • Medicine
  • Philosophy and Religion
  • Science and Technology
  • Social Sciences and the Law
  • Sports and Games
• Philosophy and Religion
  • Ancient Religions
  • Biographies
  • Christianity
  • Eastern Religions
  • Islam
  • Judaism
  • Other Religious Beliefs and General Terms
  • Philosophy
  • The Bible
• Places
  • Africa
  • Asia
  • Australia and Oceania
  • Britain, Ireland, France, and the Low Countries
  • Commonwealth of Independent States and the Baltic Nations
  • Germany, Scandinavia, and Central Europe
  • Latin America and the Caribbean
  • Oceans, Continents, and Polar Regions
  • Spain, Portugal, Italy, Greece, and the Balkans
  • United States and Canada
• Plants and Animals
  • Agriculture and Horticulture
  • Animals
  • Biographies
  • Botany
  • Microbes, Algae, and Fungi
  • Plants
  • Zoology and Veterinary Medicine
• Science and Technology
  • Astronomy and Space Exploration
  • Biochemistry
  • Biographies
  • Biology and Genetics
  • Chemistry
  • Computers and Electrical Engineering
  • Mathematics
  • Physics
  • Technology
• Social Sciences and the Law
  • Anthropology and Archaeology
  • Biographies
  • Economics, Business, and Labor
  • Education
  • Law
  • Political Science and Government
  • Sociology and Social Reform
• Sports and Everyday Life
  • Biographies
  • Crafts and Household Items
  • Days and Holidays
  • Fashion and Clothing
  • Food and Drink
  • Games
  • Manners and Customs
  • Social Organizations
  • Sports

Documents for "Aviation, Instruments, etc.":

• air navigation science and technology of determining the position of an aircraft with respect to the surface of the earth and accurately maintaining a desired course (see navigation ).

• altimeter device for measuring altitude. The most common type is an aneroid barometer calibrated to show the drop in atmospheric pressure in terms of linear elevation as an airplane, balloon, or mountain climber rises. It shows height above sea level, but not above such land...

• aneroid altimeter see air navigation.

• automatic direction finder see radio range.

• automatic pilot see air navigation.

• avionics electronic instruments used in air or space flight; also the design and production of such instruments. Early planes had few instruments, but as aviation and aircraft became more complex, so did...

• dead reckoning see navigation.

• GCA ground-controlled approach: see instrument-landing system.

• ground speed indicator see air navigation.

• ILAS instrument low-approach system: see instrument-landing system.

• instrument flight regulations see air navigation.

• instrument-landing system (ILS), ground-based radio system designed to provide an airplane pilot with precise guidance for the final approach in landing. The pilot flies his aircraft along a course delineated by the...

• loran long-range, accurate radio navigational system used by a ship or aircraft to confirm or to determine its geographical position. The term loran is derived from the words lo ng- ra nge n avigaton. Loran, operating in the 1,700-kHz range, measures the time-of-arrival difference between two signals transmitted from two geographically separated ground stations. The pulse from the first...

• navigation science and technology of finding the position and directing the course of vessels and aircraft.

• pilotage see air navigation.

• pitot static system device for measuring the rate at which a fluid flows. Among the principal applications of the device are an airspeed indicator for aircraft and a distance and speed indicator for ships. The device...

• radio altimeter see altimeter.

• radio beacon see radio range.

• radio compass see radio range.

• radio range geographically fixed radio transmitter that radiates coded signals in all directions to enable aircraft and ships to determine their bearings. An aircraft or ship can determine its line of position...

• terrain-clearance indicator see altimeter.

• turn and bank indicator aircraft instrument containing one indicator to show turning, or rotation about the vertical axis, and another to show banking, or rotation about the longitudinal axis. The two indicators are...