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Find the length of a guy wire

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Length of a Guy Wire A communications tower is located at the top of a steep hill, as shown. A guy wire is to be attached to the top of the tower and to the ground, m downhill from the base of the tower. Find the length of cable required for the guy wire. The below figure shows triangle A B C. Bartleby provides explanations to thousands of textbook problems written by our experts, many with advanced degrees! Subscribe Sign in.

SEE VIDEO BY TOPIC: PC - Law of Cosines, Tower Guy Wire

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SEE VIDEO BY TOPIC: Guy wires for Antenna Mast (working out the length)

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Tune Around! In your observations, you realize that each guy wire will have to be a different length due to obstructions and Murphey's Law getting in the way.

Ok now, stand back Murphey I don't want to have to buy more guy wire than I need. After all, my wife says I am cheap! See the example drawing below for our proposed setup and to get the answer to our question in our fictitious installation.

In our example above, the tower is 50 feet from the base to the top guy attachment point and the distance to the first guy is 70 feet Back to our school days! Get your calculator out, the simple one with 4 functions plus square root. No, you don't need a scientific calculator If you don't have a calculator, use the one at the top of this page when the guy gets done with it! Yes of course, you have to measure from the base to the outer guy tie off point. Leg C the hypothenuse is the unknown guy wire length that we are looking for.

The "right triangle" is formed by the angle at the base of the tower or mast forming a 90 degree angle to the earth AND the guy point away from the installation. We will be using the first formula above in this example to figure out how long our guy wire "C" needs to be in the drawing above since "C" is the unknown in our situation. We already know what "A" and "B" are in length.

Now since C is squared, we need to take the square root of Here is where your handheld calculator comes in handy unless you are Einstein. Plug in the in the calculator and get the square root Our answer is the square root of Murphey just cost me some more money! This method works for any tower, mast, etc as long as it forms a "right triangle" with the earth below it. We are simply using math to represent the installation in this example.

Your mast is 30 feet tall. The mast will be guyed at it's top and then extend outward to the ground. The distance from the base of the mast to the guy point is 35 feet Using the first formula given above:.

For angles other than 90 degrees Charge it to Murphey's law on his bank account! The "math" gets more complicated when the angle is not 90 degrees! Good luck. Using this method explained above, you will know exactly how much guy wire to use per guy. Be safe, not sorry. Never install a tower or mast near power lines. Murphey says that one or the other will fall. More good reading on tower and mast installations and the Pythagorean theorem:. Rohn Tower Brochure with guying suggestions.

Rohn Telescoping Mast Brochure with guying suggestions. Pythagorean theorem calculators: off site. Another example: Your mast is 30 feet tall. More good reading on tower and mast installations and the Pythagorean theorem: Rohn Tower Brochure with guying suggestions.

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The first thing I always do with word problems in trigonometry is draw a picture, label the interesting parts and add extra lines where I think they'll be useful. Start by looking at BFD. It's a right triangle and you know one angle, so you can figure out the other easily.

How tall is the tower plus TV antenna? Cloud Ifeight To measure the height of a cloud, you place a bright searchlight directly below the cloud and shine the beam straight up. Ramping U. What is the average angle of inclination of the ramp to the nearest tenth of a degree? Finding a Guy-Wire Length A guy wire connects the top of an antenna to a point on level ground 5 ft from the base of the antenna.

Find Length of Guy Wires

Find the length of a guy wire that makes an angle of First Name. Your Response. A smokestack is ft high. A guy wire must be fastened to the stack The guy wire makes an angle of Find the length of the guy wire. A telephone is anchored to the ground by a long cable called a guy wire, at a point 5 meters from the base of the pole, the wire makes an angle of What is the length of the guy wire?

Formula for determine guy wire sectional lengths...

By using our site, you acknowledge that you have read and understand our Cookie Policy , Privacy Policy , and our Terms of Service. Mathematics Stack Exchange is a question and answer site for people studying math at any level and professionals in related fields. It only takes a minute to sign up. You can use Law of cosines to find this guy wire length.

Tune Around! In your observations, you realize that each guy wire will have to be a different length due to obstructions and Murphey's Law getting in the way.

You can use the following argument from trigonometry:. If you have difficulties to find h look at the solution below. A guy wire supports a tower.

Let our math solver do your algebra problems step-by-step!

QRZ Forums. Formula for determine guy wire sectional lengths Hi, I'm looking for the formula used to determine how long to cut your guy wires, provided you know how far the anchor points should be from the mast and the heights of the guying points on the mast.

SEE VIDEO BY TOPIC: Ex: Find Length of a Support Wire on a Hill Using the Law of Cosines

Complicating the process are different ground elevations, guying distances, wire sizes and a host of other considerations required to complete a take- off for an installation project. With the ever-increasing need for replacement guy systems and retrofitting projects to enable increased capacity on guyed towers, WirelessEstimator. Once you have entered the required data in the Guy Wire Calculator you will be able to download an Excel spreadsheet to aid you in ordering your materials or completing a takeoff for a proposal by entering your vendor's pricing. They should not to be used for design purposes. Only a qualified engineer can provide that information after an analysis of a structure. Estimating program to be discontinued The guy wire calculator is one of the first in a series of browser-based modules that will be introduced by WirelessEstimator.

Finding the Length of a Guy Wires

Tower height 6m, guy radius m. Good old Pythagerus helps here, square the height measurement and square the guy radius then add those two results, take the square root of the resultant and thats it. Add some for each end I add 1m for each end. It only works for a even right angle between mast and ground to the guy. To quote the possibly non PC method to remember it.

Sep 20, - A radio tower feet high is located on the side of a hill with an inclination to the horizontal of 5 degrees. How long should two guy wires be if.

Это его прерогатива. Я плачу вам за то, чтобы вы следили за отчетностью и обслуживали сотрудников, а не шпионили за моим заместителем. Если бы не он, мы бы до сих пор взламывали шифры с помощью карандаша и бумаги. А теперь уходите! - Он повернулся к Бринкерхоффу, с побледневшим лицом стоявшему возле двери.  - Вы оба.

- Я являюсь заместителем оперативного директора агентства.  - Усталая улыбка промелькнула на его лице.  - И потом, я не. Рядом со мной Сьюзан Флетчер.

- Но тут… тут слишком. Мне нужны только деньги на такси.  - Он прикинул в уме, сколько в этой пачке в пересчете на доллары.

Формула Цифровой крепости зашифрована с помощью Цифровой крепости. Танкадо предложил бесценный математический метод, но зашифровал .

В центре возник нечеткий из-за атмосферных помех кадр, который затем превратился в черно-белую картинку парка. - Трансляция началась, - объявил агент Смит. Это было похоже на старое кино. Кадр казался неестественно вытянутым по вертикали и неустойчивым, как бывает при дрожащем объективе, - это было результатом удаления кадров, процесса, сокращающего видеозапись вдвое и экономящего время. Объектив, скользнув по огромной площади, показал полукруглый вход в севильский парк Аюнтамьенто.

- С какой стати такой параноик, как Танкадо, доверился столь ненадежному типу, как Хейл. Сьюзан понимала, что теперь это не имеет никакого значения. Нужно немедленно доложить обо всем Стратмору. Ирония ситуации заключалась в том, что партнер Танкадо находился здесь, прямо у них под носом.

Ей в голову пришла и другая мысль - известно ли Хейлу, что Танкадо уже нет в живых. Сьюзан стала быстро закрывать файлы электронной почты Хейла, уничтожая следы своего посещения. Хейл ничего не должен заподозрить - .

Волосы… - Не успев договорить, он понял, что совершил ошибку. Кассирша сощурилась. - Вашей возлюбленной пятнадцать лет. - Нет! - почти крикнул Беккер.

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