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A flagpole, flagmast, flagstaff, or staff is a pole designed to support a flag. If it is taller than can be easily reached to raise the flag, a cord is used, looping around a pulley at the top of the pole with the ends tied at the bottom. The flag is fixed to one lower end of the cord, and is then raised by pulling on the other end.
The Independence Flagpole was the location where the Philippine flag was hoisted on July 4, 1946, when full independence was achieved from the United States. The flagpole was designed to be at 45.72 m (150.0 ft) high but was damaged by Typhoon Angela (Rosing) in 1995 reducing the flagpole's height to just 32 m (105 ft).
Half-mast or half-staff (American English) refers to a flag flying below the summit of a ship mast, a pole on land, or a pole on a building. In many countries this is seen as a symbol of respect, mourning, distress, or, in some cases, a salute. [1] The tradition of flying the flag at half-mast began in the 17th century. [2]
Six of the flags (including one for Apollo 13 which was not planted on the Moon) were ordered from a government supply catalog and measured 3 by 5 feet (0.91 by 1.52 m); the last one planted on the Moon was the slightly larger, 6-foot (1.8 m)-wide flag which had hung in the MSC Mission Operations Control Room for most of the Apollo program.
At 165 metres (541 feet), [1] it was the tallest flagpole in the world from its completion in 2011 until the 2014 erection of the 171 m (561 ft) Jeddah Flagpole. [2] [3] It is now the fifth tallest flagpole in the world. It flies a 30 m × 60 m (98 ft × 197 ft) Flag of Tajikistan weighing 700 kilograms (1,540 pounds). [4]
size 2 from 6.5 feet (2.0 m) to 11 feet (3.4 m), size 3 from 8 feet (2.4 m) to 13 feet (4.0 m), size 4 from 10.5 feet (3.2 m) to 16 feet (4.9 m). The safe load for each prop depends upon the size and extension of the prop. Size 1, 2 and 3 props can take about 34 kN unextended, dropping progressively to less than half of that when fully extended.
A guyed radio mast. A guyed mast is a tall thin vertical structure that depends on guy lines (diagonal tensioned cables attached to the ground or a base) for stability. The mast itself has the compressive strength to support its own weight, but does not have the shear strength to stand unsupported or bear loads.
Telescoping in mechanics describes the movement of one part sliding out from another, lengthening an object (such as a telescope or the lift arm of an aerial work platform) from its rest state. [1] In modern equipment this can be achieved by a hydraulics , but pulleys are generally used for simpler designs such as extendable ladders and amateur ...