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One chain is equal to 66 survey feet.
In 1620, the clergyman Edmund Gunter developed a method of surveying land accurately with low technology equipment, using what became known as Gunter's chain. This was 66 feet (22 yards) long and from the practice of using his chain, the word transferred to the actual measured unit. His chain had 100 links, and the link is used as a subdivision of the chain as a unit of length. A rectangle of land one furlong in length and one chain in width has an area of one acre. It is sometimes suggested that this was a medieval parcel of land capable of being worked by one man and supporting one family, but there is no documentary support for this assertion, and it would in any case have predated Gunter's work.
An acre is an area measurement. It has no specific shape, though traditionally it's thought of as a piece of land one furlong in length and one chain in width.4 acres could be:1320 feet long by 132 feet wideA square about 417.4 feet on a side33 miles long and a foot wideor any other combination yielding 174240 square feet.
320' x 180' works out to be about 132% of one acre.
0.137 acre.
One chain is equal to 66 survey feet.
A Pole is equal to 5.5 yards, 5.0292 metres, 16.5 feet, or 1⁄320 of a statute mile.
Chain surveying, also known as linear surveying, is a basic method of land surveying used to measure and map small and relatively flat areas. It is a simple and traditional technique that involves the use of chains or tapes to measure distances and basic instruments to measure angles. Chain surveying is often used for small-scale surveys such as creating maps for agricultural fields, small plots, or subdivisions. Here's how chain surveying works: 1. Measurement of Distances: In chain surveying, distances are measured using chains (typically 66 feet or 100 feet) or steel tapes. These chains or tapes are laid out along the linear features of the land being surveyed, such as property boundaries or roads. The total distance is obtained by chaining together multiple segments. 2. Measurement of Angles: Basic angles can be measured using a compass, theodolite, or other simple instruments. These angles are used to determine the direction of the surveyed lines and to calculate the layout of the land. 3. Stations and Offsets: The surveyed area is divided into smaller segments called "stations." At each station, measurements are taken to locate nearby features or boundaries, and perpendicular lines known as "offsets" are measured to mark points of interest. 4. Plotting: The data collected during the survey is used to create a scaled drawing or map of the surveyed area. The positions of boundaries, features, and angles are plotted on the map to create an accurate representation of the land. Advantages of Chain Surveying: **Simplicity:** Chain surveying is straightforward and requires minimal equipment and training. **Accuracy:** In relatively small and flat areas, chain surveying can provide accurate measurements for basic mapping purposes. **Low Cost:** It is a cost-effective method, making it suitable for smaller projects with limited budgets. Limitations of Chain Surveying: **Limited Coverage:** Chain surveying is not suitable for large or complex areas, as it becomes challenging to maintain accuracy over extended distances or rugged terrains. **Human Errors:** The accuracy of measurements in chain surveying can be affected by human errors, such as miscounting chain links or inaccurate readings. **Lack of Precision:** Chain surveying may not provide the level of precision required for detailed engineering projects or high-precision mapping. In modern surveying, more advanced methods such as total stations, GPS, and aerial surveys have largely replaced chain surveying for larger and more complex projects. However, chain surveying remains a valuable technique for smaller-scale surveys and in situations where advanced technology is not readily available or necessary.
This unit of measurement is different in different professions. A surveyor's chain is 66 feet. An engineer's chain is 100 feet.
The standard American surveyor's chain (Gunter's chain) is 66 feet long.
In 1620, the clergyman Edmund Gunter developed a method of surveying land accurately with low technology equipment, using what became known as Gunter's chain. This was 66 feet (22 yards) long and from the practice of using his chain, the word transferred to the actual measured unit. His chain had 100 links, and the link is used as a subdivision of the chain as a unit of length. A rectangle of land one furlong in length and one chain in width has an area of one acre. It is sometimes suggested that this was a medieval parcel of land capable of being worked by one man and supporting one family, but there is no documentary support for this assertion, and it would in any case have predated Gunter's work.
long af!
40 feet long
Like 1000 feet long
It is 132 square feet.
2,700 feet
Those are disturbing the line of measuring is called Obstacles. The actual length of the chain is become short or some time long. this error factor are removed by calculation after measuring the distance between then by as Total Distance = (difference in length of chain /original length of chain)* Measured Distance.