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Reed boat Abora IV with bipod mast.
The bipod mast is a two-legged mast used originally in Egypt during the 3rd millennium BCE. It can be described as two poles secured together at the top, forming a thin isosceles triangle. It did not appear until the Old Kingdom, third dynasty, and disappeared after the sixth dynasty when the pole mast took over during the Middle Kingdom.
The reason that the bipod mast was used for only a short time is also the reason that it developed in the first place. At the time reed boats were being used to carry goods up and down the Nile. A mast and sail were wanted to make these journeys go more quickly through wind power. The problem was that a pole mast would have to be secured or stepped in the center of the craft, at its weakest point. This would have caused the bottom of the boat to rupture. Because reed materials were not strong enough to support a single pole, the bipod was developed to better distribute the weight. The bipod mast continued to be used even when builders begun using wood to construct boats. It was used both along the Nile and once actual seafaring began. When it was reed materials being used the bipod mast was secured through backstays. Once the builders switched over to wood the two rods were tied to the wood continued to be secured with cables. These bipod masts could easily be stored by folding one side into the other laying it across the ship with its weight evenly distributed on stands also called forked crutches. Thus, the bipod masts were convenient for travel along the Nile. The Nile is easy to travel when heading north, with the current, but when heading south, sailors must use man power and wind power against the current. For this reason the development of the bipod mast was very important. The bipod mast allowed for faster travel south. It is likely that this improved trade because Egyptians did not waste as much time traveling south. Also, the development of the mast was part of the transition into seafaring. In voyaging across the sea a mast and sail are required. So, in conclusion the bipod mast played a major part in ushering in overseas trade.
The bipodmast is a two-legged mast used originally in Egypt during the 3rd millennium BCE. It can be described as two poles secured together at the top...
Egyptians used a bipodmast to support a single square sail on a vessel that mainly relied on multiple paddlers.[failed verification] Later the mast became a...
discovered anchors and storage jars near the site. Masts and Bipodmast – The bipodmast is a two-legged mast used originally in Egypt during the 3rd millennium...
removable bipodmasts Makassar benawa with tanja sails on removable tripod masts and a jib Makassar padewakang with tanja sails on bipodmasts Micronesian...
Mesopotamia, dated to the 6th millennium BCE. The image is thought to show a bipodmast mounted on the hull of a reed boat – no sail is depicted. The earliest...
bipodmasts are positioned on either side of a bamboo cabin for Viracocha I, and a smaller mast is used further aft for the Viracocha II. The masts are...
rigs. The boom is connected with the lower part of the mast which is shaped like a "Y" or a bipod and therefore it is a single swinging derrick. On the...
Mesopotamia. They were made from bundled reeds coated in bitumen and had bipodmasts. They sailed in shallow coastal waters of the Persian Gulf. Evidence...
image of a vessel on a shard of pottery shows evidence of what could be bipodmasts and a sail, which would make it the earliest known evidence of the use...
which looked like it could rock on a single aka. The mast was a bipod arrangement with both masts stepped to windward, with a boomed, balanced lugsail...
generally mounted on one or two (rarely three) bipod or tripod masts, usually made from thick bamboo. The masts have curved heads with grooves for attaching...
rig, the lower main mast is a tripod, with ratlines in form of small crossbeams between the two poles aft; on the newer ones a bipod is used, and ratlines...
and it was connected to the orbiter at one forward attachment bipod and two aft bipods. In the aft attachment area, there were also umbilicals that carried...
include: Having outriggers that are not as long as their hulls, bipod or tripod mast with a canted square sail (tanja sail), a bowsprit with a spritsail...
investigation of the relief. The ship has protruding deck beams, a single mast (not a bipod or tripod), and a square sail that has a yard and boom.: 137–139 ...
reported still sailing. She was the first ship in the fleet to have bipodmasts. Moanui 1957 1967 - 1975 Ardrossan Dockyard Limited 1289 Motor ship launched...
military sniper rifles come equipped with an adjustable bipod.[page needed] Makeshift bipods known as shooting sticks can be constructed from items such...
the upper and lower edges. Fixed masts also developed later in both Southeast Asia (usually as bipod or tripod masts) and Oceania. Early researchers like...
helped design, and Scaled Composites manufactured, the double slotted wing mast for the Stars & Stripes catamaran for Dennis Conner's entry in the 1988 America's...
the upper and lower edges. Fixed masts also developed later in both Southeast Asia (usually as bipod or tripod masts) and Oceania. Austronesians traditionally...
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