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| | Saudi Aramco World : Flying the Furrow (Site not responding. Last check: 2007-10-09) |
 | | Shortly after this brilliant suggestion was made, the route was initially marked with chain harrows, and in 1922, teams on Fordson tractors, pulling weighted plows and escorted by armored cars, set out eastward from Amman and westward from Baghdad, aiming to meet halfway. |
 | | The depot's locking system was ingeniously designed to function also as a double lock on the aircraft cabin doors, so that an aircraft could not take off either with its door open or with the depot key left at the fuel tank. |
 | | By then, flying "the Furrow" was already a memory, superseded by the early radio aids to navigation, more advanced versions of which still guide aircraft today. |
| www.saudiaramcoworld.com /issue/200102/flying.the.furrow.htm (3347 words) |
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