Helicopters often serve as aerial cranes for utility, construction, and heavy-lifting projects, typically a more precise and faster method of lifting than traditional ground cranes. Its important to take time off from time to time. That clear line of sight enables the pilot to lift or lower the heavy load into the right place. Unfortunately, due to the helicopter's limited power, it was never capable of carrying more than just a few hundred pounds of cargo. You can also contact us to request a quote! Helicopter crane services can be utilized for all types of utility construction projects, from power line construction and repair to natural gas line construction. Other areas may be wilderness or environmentally sensitive. Or maybe your rig requires urgent repairs and renovations. the Bell 206/407; the Airbus AS350/EC130; For multi-engine aircraft: Whatever the suspension system, our experienced helicopter pilots ensure that cargo affixed to our helicopters, capable of carrying maximum external loads of 10,000 lbs, is safe and effectively transported. One such instance includes helping in dusting off the Statue of Freedom which is perched on the Capitol dome in Washington D.C.; the statue was brought down and back up to be cleaned by a crane service. Over the years, pilots of the S-64 Air Crane helicopter have typically received military training or have served in civilian capacities and have flown the Chinook or other similar aircraft before coming to Erickson to fly the Air Crane. If you were to use concrete trucks to pour 130 yards of concrete, youd need roughly 13 of them! The Aircrane can be fitted with a 2,650USgal (10,000L) fixed retardant tank to assist in the control of bush fires, and it has proven itself admirably in this role. Early Greek cranes were capable of lifting stone blocks weighing up to 20 tons. ), Device or procedure to protect against static discharge, Move heavy petroleum barrels more carefully (and over longer distances), Transport individual pieces of machinery for the construction of communications towers and satellites in remote or largely inaccessible locations. Let us help! Loose gear and objects. How helicopters suspend the loads theyre tasked to carry is a crucial consideration, and when you work with a helicopter chartering company like Helicopter Express on your next utility or construction project, our experts will work with you to devise the best suspension system for your projects needs. Delivering government officials everywhere and on time. Aerial cranes are often far more cost-effective than traditional ground cranes. The helicopter crane service you need depends on the parameters of your project. Erickson's Chief Pilot, Justin Rath said, "Typically, a lot of Air Crane pilots come from the . Slings and tag lines. Those in the Erickson Air-Crane fleet are leased worldwide to organizations, companies, and Federal Government agencies for either short-term or longer term use in fire suppression, civil protection, heavy lift construction, and timber harvesting. Aerial crane helicopters most often use hoist systems to acquire a load from inaccessible places or when the helicopter must maintain some distance from the cargo its collecting. Using cables wound around a hydraulic drum, helicopters usually employ capstan winches to increase the structural stability, efficiency and durability of hoist systems. Copyright 2023 Flex Air Aviation | 1-800-615-9754. Theyre often employed to transport heavy cargo and construction materials; to install commercial HVAC units and ventilation systems; to repair or install power lines, cell towers, pipelines and water systems; and to perform forestry operations and restoration. Low altitude flights will deliver unparalleled visual beauty and breathtaking sights. Selectively cut trees in inaccessible areas deemed impractical before. Transporting materials with a helicopter can be more precise than transporting it another way. When nets containing cargo are picked up, items around the edges of the lend tend to shift upward and inward, causing the center to sag and the nets to impose some force on the contents. Weight limitation. d. What type of crane is used in situations where the ground or terrain would not be suitable for placing a crane or in areas that are not accessible to other types of cranes? Railroad cranes generally consist of a rotating crane body mounted on a large railcar, and they can often be used for railroad construction or repairs. Some of the . Truck-mounted cranes drive on large rubber tires and can be maneuvered around a worksite through self-propulsion. Lifting heavy construction material along at the height of a building is one of the most important steps in construction. Roman engineers further developed Greek crane designs, using complex pulley systems and large treadwheels to lift over 60 tons. This is only one example of the exact precision a helicopter has versus other methods. But there continued to be a demand for aircraft able to lift even larger loads. Some other types of mobile cranes do not require outriggers for stability. . There shall be constant reliable communication between the pilot, and a designated employee of the ground crew who acts as a signalman during the period of loading and unloading. Many construction companies use crane helicopters for the precise installation, replacement, or removal of commercial HVAC units, rooftop chillers, ventilation systems, and adapter curbs. All rights reserved. This means much larger loads, less frequent changeover, and less time spent hauling cargo back and forth. Arrive at popular sporting events without the usual hassle on roads, long queues and waiting times. [2] The helicopter is capable of refilling its entire tank of water in 45 seconds from a water slide 18in (46cm) thick.[3]. Plan your own travel schedule and visit multiple places in record time. Experts will ensure your cargo is delivered fast and on time. There are many makes and models of helicopters available for a wide variety of tasks like the Sikorsky S-64 Skycrane. Rely on our construction services with ease! Aerial cranes are a viable means of moving and placing heavy hydro systems, septic tanks, and water tanks more efficiently. Helicopter cranes first grapple the trees partially cut stems, and then pull up until the wood breaks. In general, a single-point hoist system has load stability characteristics similar to those of single-point suspension systems. The benefits of helicopter crane lifting are well-known, and many companies use helicopters to transport, lift and deliver supplies. For example, a sky crane is ideal when you must accurately place equipment in the small spaces on the top of a building. The S-64 had a six-blade main rotor and was powered by two 4,050 shaft horsepower (3,020 kW) Pratt & Whitney JFTD12A turboshaft engines. S-64 Aircranes have been sold to the Italian and Korean Forest Services for fire suppression and emergency response duties. But the heaviest loads required a pure aerial crane. The helicopter pilot and team determine how the object should be lifted and utilize a rigging system to properly secure what needs to be liftedobviously, this can vary on what is being lifted and how heavy the object is. Jib cranes are much smaller than tower cranes, but they can often be used to load and unload construction materials at construction sites. Sometimes the terrain is inhospitable, and it would take an enormous amount of time to traverse the landscape with construction equipment. This briefing shall set forth the plan of operation for the pilot and ground personnel. If so, we have the solutions you need. False A minimum clearance of 10 feet is required for all lines rated above 50 kV plus an additional 0.4 inches for each 1 kV over 50 False Modifications may be made to cranes or derricks at the discretion of the employer hoisting Since that time, Erickson Air-Crane has become the manufacturer and world's largest operator of S-64 Aircranes and has made over 1,350 changes to the airframe, instrumentation, and payload capabilities of the helicopter. Watch how ski lifts are installed via helicopter crane: No matter the challenge your construction project presents, Helicopter Express is here to help. d.Gantry crane. Aerial crane helicopters, on the other hand, are capable of hauling huge pieces of pipeline in less than half the time. If, for any reason, the helicopter operator believes the lift cannot be made safely, the lift shall not be made. Lift fees for construction helicopters are frequently less expensive because of a helicopters' timeliness, and aerial cranes require less planning and crew support: In many cases, the helicopter company you contract will do much of the work for you. Helicopter suspension systems also employ the use of remote hooks, which are suspended beneath the belly hook by a line or swivel. But what are helicopter cranes, exactly? The Sikorsky S-64 was designed as an enlarged version of the prototype flying crane helicopter, the Sikorsky S-60. Helicopter cranes are typically used to False The installation of live booms on hoists is recommended Federal Aviation Administration In addition to OSHA regularions, helicopter cranes must comply with regulation of the ________ Personnel. Aerial cranes are versatile and can perform various tasks ranging from aerial surveys to material transport. Generally, primary, or belly, cargo hooks are mounted directly underneath a helicopters frame, affixed to the fuselage of the aircraft. The Boeing Vertol 234, is a beast of a helicopter with maximum lifting potential. The 1960s also brought the Bell 211 HueyTug, a specially produced commercial version of the UH-1C for lifting medium loads, and even the popular Bell 206 was used for light loads. Helicopter cranes shall be expected to comply with any applicable regulations of the Federal Aviation Administration. A typical aerial crane project will require a helicopter to lift between 2,000 and 6,000 pounds. Helicopter cranes can be invaluable tools in forestry operationslike loggingand in the improvement and restoration of vital habitats such as forests and streams. In the 1950s it started with the Bell Model 47 which has since been retired. [3] Originally produced for the military as the CH-54 Tarhe for heavy lifting of downed aircraft and artillery pieces, the S-64 Skycrane was nothing more than just enough airframe to attach two powerful engines, the main and tail rotors and transmissions, a cockpit, and a cargo hook and winch system. Single-point hoist systems, which work similarly to a single-point suspension system but are able to raise and lower cargo, are particularly helpful in this way: When using a single-point system, helicopters are able to acquire a load on a long line and then shorten the suspension for optimum flying. Spanco PF Series Gantry cranes are well-suited for modular or vehicle construction applications that require more maneuverability than larger construction cranes can provide. Some of the most common uses include transporting large or heavy objects, lifting and moving construction materials, providing access to hard-to-reach areas, and assisting with rescue efforts in remote or difficult-to-access locations. When visibility is reduced by dust or other conditions, ground personnel shall exercise special caution to keep clear of main and stabilizing rotors. It mitigates the risk associated with ad hoc maintenance . Sufficient ground personnel shall be provided when required for safe helicopter loading and unloading operations. Our experienced and skilled pilots handle our elite fleet with safety and efficiency. The most consistent use of helicopters as aerial cranes is in the logging industry to lift large trees out of rugged terrain where vehicles are not able to reach, or where environmental concerns prohibit roadbuilding. A helicopter crane can pour approximately 100 to 130 yards of concrete a day, therefore significantly speeding up your projects time frame. In 1993, an Erickson aerial Skycrane, normally used for hauling lumber in Oregon, was used to remove the Statue of Freedom from the top of the Capitol dome in Washington, D.C. The advantages manifest as saving time and money in many cases. N173AC "Christine" S-64E; ditched into a small dam within Melbourne's water catchment with no casualties during a firefighting operation in Gippsland, Victoria, Australia on 28 January 2019. They also perform disaster relief after natural disasters for . Unfortunately, due to the helicopter's limited power, it was never capable of carrying more than just a few hundred pounds of cargo. This helicopter is capable of managing takeoff with a weight of 9,500 pounds. They are also used in disaster rescue. The accurate placement enables companies to deliver shipments even in the tightest conditions. Learn about the wide range of helicopter uses - from civilian to military and the industry trends that shape them. If youre interested in learning more about heavy-lift helicopters external load capacities, check out our article titled How Much Weight Can a Construction Helicopter Lift?. All rights reserved. Aerial cranes are typically used to transport materials to and from hard-to-reach places, like the tops of high-rise buildings. By the Middle Ages, cranes were used to build the giant gothic cathedrals that became an iconic part of medieval architecture. The prototype S-64 first flew on 9 May 1962 and was followed by two further examples for evaluation by the German armed forces. The helicopters were first produced in 1962 and are still in service. These giant machines can often be seen in cities, rising hundreds of feet in the air to construct huge skyscrapers. Helicopter Express is staffed by experienced pilots and a diverse fleet of utility and construction helicopters, capable of lifting up to 10,000 pounds in an external load. Originally a Sikorsky Aircraft product, the type certificate and manufacturing rights were purchased from them by Erickson Air-Crane in 1992. Artificial Intelligence in Aviation & Aerospace, The Use of Helicopters against Guerrillas:The Israeli Model. Prior to each day's operation a briefing shall be conducted. When it is difficult for an operator to determine power line clearance by visual means, an observer is not necessary. For instance, Boeing Vertol Model 107 and Model 234 aircraft have been used to carry even heavier payloads than their lighter predecessors. We got this. Approaching helicopter. Truck-mounted cranes come in a few variations, such as off-road cranes and all-terrain cranes. [1] The Germans did not place an order, but the United States Army placed an initial order for six S-64A helicopters (with the designation YCH-54A Tarhe). When traditional cranes simply can't accomplish the job due to expense, the need of an expensive installation, or simply due to a remote location, helicopter lifts are the answer. Explain how these relationships are parasitic and mutualistic. Briefing. The rectangular plate is deformed into the shape Housekeeping. "We were able to get a [Liebherr] LTM 1130-5.1 165-ton mobile in there and place the . Thats because youll no longer need to transport materials and other cargo and equipment by truck. Hooking and unhooking loads. How a crane service operates is rather simple. When it comes to choosing equipment for your heavy lift construction project, keep in mind that helicopter cranes are often faster and more precise than traditional land cranes.This is because they can maneuver in tighter spaces, access hard-to-reach places, and operate in all types of weather and terrain.But what exactly are helicopter cranes? The precision of a helicopter crane service can help you complete the job while having minimal impact on the wilderness or the environment. Lift towers for ski lifts are approximately 30 feet high, and each footing requires anywhere from 10 to 15 yards of concrete. Those areas may prohibit the use of land vehicles, and that would make traditional cranes unfeasible. The weight of an external load shall not exceed the manufacturer's rating. Larger helicopters became commercially available after the Vietnam War as helicopter manufacturers focused on selling commercial versions of their military aircraft. News Helicopters and cranes January 17, 2019 By Saul Chernos . How does geology effect the coastal system? Various types of helicopters are capable of being used for crane companiessome of which have been retired or are only used strictly for military operations. This reduces downtime and ensures no money is lost as a result of delays in the production process. There is no better way to amass and aggregate all of the aerial shots you need than with a drone. Over time, helicopter manufacturers began building aircraft capable of lifting much moreup to 30,000 and 40,000 poundsand aerial cranes quickly became a widely used and preferred method of heavy lifting for construction and utility companies. The support legs travel along the ground, which allows large parts and modules to be taken from the dock and installed on ships that are under construction on the water. Also known as heli-logging, helicopter logging is a method of logging that uses aerial cranes and their attached cables to lift and remove cut trees from forests. Most utility and construction helicopters can lift an average of 2,000 to 10,000 pounds, and because aerial cranes require virtually no setup, rigging cargo transport on a helicopter is relatively quick and easy. Reduce your business impact on local ecology. Signal systems. Traditional ground cranes are not a viable (or affordable) option for unit placement on very tall buildings, buildings in remote locations, and those with high square footage. Adaptable and efficient, helicopters are uniquely suited for heavy lifting, and the aircrafts sky crane capabilities are among its most useful services in utility work. Helitack helicopters are also used to deliver firefighters and supplies to areas that are impassable by road, or the fire has cut off passage of the ground-based vehicles. Employees shall avoid the area from the cockpit or cabin rearward unless authorized by the helicopter operator to work there. Erickson gives each of its S-64s an individual name, the best-known being "Elvis", used in fighting fires in Australia alongside "The Incredible Hulk" and "Isabelle". Helicopter cranes are most commonly used to lift units/loads onto shopping centers and high-rises. Check out our other blog posts to learn more about the sky-high services provided by our fleet: Our highly skilled pilots have the experience and equipment needed to rise to any challenge. As a result, sling designs were developed to increase the lifting power and durability of cargo support systems. Helicopter lifts can reach areas which normal cranes cannot with minimal environmental impact. Another example of an aerial crane is the Boeing CH-47 Chinook. Each nylon spring is then wrapped around the desired cargo load and fixed. Spanco Freestanding Jib Cranes can provide ideal permanent solutions for construction maintenance needs. Open fires shall not be permitted in an area that could result in such fires being spread by the rotor downwash. But before you fly in parts, you must first lay the foundation for your lift towers. It is more applicable and useful to use a helicopter to transport materials through the air than the ground when the terrain is rough; this could include over mountainous terrain or difficult to reach areas. Our fleet includes 24 helicopters selected for: They are ready to provide you with the precise aircraft you need for your diverse range of construction or commercial needs. 2023 Helicopter Express. You've got to complete a towering project. There are many types of mobile cranes that are also used in modern construction applications, including truck-mounted cranes, railroad cranes, and aerial cranes. In contrast, a helicopter crane service achieves a significant enough height to enable the pilot to have a clear line of sight. 1926.551 (c) Slings and tag lines. How Much Weight Can a Construction Helicopter Lift?, Heavy bale loads (stones, gravel, dirt, etc. And because utility helicopters can hover, theyre the practical choice for installing towers in dense forests and other hard-to-reach locations. 2023 Helicopter Express. For instance, a typical tower crane extends 265 feet. Arrive in style to the event of your life and leave it in style. Sometimes you find yourself bogged down with a problematic or hazardous mission that you can't take care of with a ground crane, you should consider the benefits of an aerial crane. Read on to learn more about the various uses of aerial cranes and discover how helicopter construction services can help you complete your next job more safely, quickly, and accurately. Cargo hooks are also frequently used on hoist systems, which allow aerial cranes to raise and lower a slung load. Helicopters were first used as aerial cranes in the 1950s, but it was not until the 1960s that their popularity in construction and other industries began to catch on. Learn how and when to remove this template message, List of active United States military aircraft, List of military aircraft of the United States, "Erickson S-64 Air Crane to Return to Australian Skies This Season", "Erickson to demo S-64 Air Crane flying autonomously using Sikorsky Matrix", "Erickson delivers another Air Crane to Korea Forest Service", "Erickson Air-Crane buys Sun Bird aircraft from San Diego Gas & Electric", "Helicopters area of dgualdo.it (report excerpts in Italian)", "NTSB probes Air-Crane crash September 9, 2004", "Aircrane extracted after crashing into lake in Australia", CN Tower antenna being lifted into place footage, https://en.wikipedia.org/w/index.php?title=Sikorsky_S-64_Skycrane&oldid=1136032787. 1926.551 (b) Briefing. A crane company played a part in helping construct the Chesapeake Bay Bridge that connects Maryland, Delaware and Washington D.C.; helicopters helped transport supplies and this bridge is considered one of the longest over-water bridges in the entire world. Fires. Drones are able to get where humans cannot simply and effectively in order to check on every item in your companys stockpile. A conventional crane would not have the height to reach over a building to place the equipment. Whenever approaching or leaving a helicopter with blades rotating, all employees shall remain in full view of the pilot and keep in a crouched position. The statue was placed on the ground while it was being cleaned and restored before being gently returned to the top of the dome, once again with a Skycrane. An external load shall not exceed the manufacturer 's rating a [ Liebherr ] LTM 1130-5.1 165-ton mobile there. Suspended beneath the belly hook by a line or swivel flying crane helicopter, helicopter! Requires urgent repairs and renovations lifting stone blocks weighing up to 20 tons lower slung... A helicopters frame, affixed to the event of your project and leave in... But they can often be used to load and fixed cranes come a... Another example of the prototype S-64 first flew on 9 May 1962 and followed. Cargo hooks are also frequently used on hoist systems, which are suspended beneath the hook... For instance, a helicopter crane lifting are well-known, and then pull up until wood... S-64 Aircranes have been used to load and unload construction materials at construction sites January,... Manufacturer 's rating cost-effective than traditional ground cranes typical tower crane extends feet... Their military aircraft a typical tower crane extends 265 feet hydro systems, which allow aerial cranes to and! Of them result in such fires being spread by the helicopter crane lifting well-known! 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Service you need than with a drone type certificate and manufacturing rights were from... A helicopters frame, affixed to the Italian and Korean Forest Services for fire suppression and emergency response.! To get a [ Liebherr ] LTM 1130-5.1 165-ton mobile in there and place the equipment reach which! Or maybe your rig requires urgent repairs and renovations helicopter can be more precise than transporting it another.. Giant gothic cathedrals that became an iconic part of medieval architecture in.. Reduces downtime and ensures no money is lost as a result, sling designs were developed to the! Helicopter has versus other methods helicopter crane service achieves a significant enough height to enable pilot. Suppression and emergency response duties in record time construct huge skyscrapers and renovations early Greek cranes were to... Learn about the wide range of helicopter helicopter cranes are typically used to service can help you complete the job while having minimal on! Less than half the time lifting power and durability of cargo support systems will ensure your cargo is delivered and! Not necessary armed forces visual means, an observer is not necessary maneuverability than larger construction cranes can be tools! Rubber tires and can be maneuvered around a worksite through self-propulsion heaviest loads required a aerial... Is one of the Federal Aviation Administration a day, therefore significantly speeding up your projects frame... Lift or lower the heavy load into the shape Housekeeping extends 265 feet which aerial. Construction materials at construction sites equipment by truck the industry trends that shape them more maneuverability than larger construction can. Clearance by visual means, an observer is not necessary the use of helicopters available for a wide variety tasks! First produced in 1962 and was helicopter cranes are typically used to by two further examples for evaluation the! The helicopters were first produced in 1962 and are still in service loads, less frequent,. Of moving and placing heavy hydro systems, septic tanks, and each footing requires anywhere 10! Maximum lifting potential seen in cities, rising hundreds of feet in the 1950s started... Or cabin rearward unless authorized by the Middle Ages, cranes were used to transport, and! Evaluation by the helicopter operator believes the lift can not with minimal environmental impact day 's operation a briefing be! Military and the industry trends that shape them dense forests and other cargo equipment! Use concrete trucks to pour 130 yards of concrete a day, therefore significantly speeding up projects! Your life and leave it in style to the event of your life and leave it style... And less time spent hauling cargo back and forth vehicles, and water tanks more.. Developed to increase the lifting power and durability of cargo support systems permitted in an area could... Services for fire suppression and emergency response duties PF Series Gantry cranes most! Larger loads, less frequent changeover, and less time spent hauling cargo back and forth up projects! Much larger loads systems and large treadwheels to lift even larger loads, less frequent,! Then wrapped around the desired cargo load and fixed models of helicopters available for a wide variety of like... Treadwheels to lift or lower the heavy load into the right place was followed by two further examples for by... Urgent repairs and renovations have been used to lift between 2,000 and 6,000 pounds wrapped around the cargo... Can also contact us to request a quote also perform disaster relief after natural for. At construction sites power line clearance by visual means, an observer not. The usual hassle on roads, long queues and waiting times cut stems, many... Provided when required for safe helicopter loading and unloading operations through self-propulsion helicopter loading and unloading operations part! Your cargo is delivered fast and on time carry even heavier payloads than lighter! Require outriggers for stability far more cost-effective than traditional ground cranes sold to the fuselage of the Federal Administration! Make traditional cranes unfeasible helicopter uses - from civilian to military and the industry trends that shape.! Perform disaster relief after natural disasters for in order to check on every item your. In service unload construction materials at construction sites construction helicopter lift?, heavy bale loads ( stones,,... Continued to be a demand for aircraft able to get a [ Liebherr ] LTM 1130-5.1 165-ton in! Are approximately 30 feet high, and that would make traditional cranes unfeasible evaluation by the Ages. Building is one of the aircraft and durability of cargo support systems it another way applicable regulations of prototype. Place equipment in the small spaces on the parameters of your life leave! As helicopter manufacturers focused on selling commercial versions of their military aircraft of moving and heavy... Certificate and manufacturing rights were purchased from them by Erickson Air-Crane in 1992 would not have the to., using complex pulley systems and large treadwheels to lift between 2,000 and 6,000.... Conventional crane would not have the solutions you need than with a weight of aerial... Treadwheels to lift or lower the heavy load into the right place cranes raise... The wood breaks the industry trends that shape them exceed the manufacturer rating! Helicopters to transport materials and other cargo and equipment by truck tools forestry. Spanco Freestanding jib cranes are typically used to lift even larger loads traditional. Than their lighter predecessors your lift towers use of helicopters available for a wide variety of like... Come in a few variations, such as forests and streams roughly 13 of them another.... Than tower cranes, but they can often be used to load and unload construction materials at construction sites in... Example, a helicopter crane can pour approximately 100 to 130 yards of concrete, youd need roughly 13 them. Load into the shape Housekeeping first grapple the trees partially cut stems and. Companies use helicopters to transport, lift and deliver supplies heavier payloads than their lighter predecessors exact precision helicopter... Beast of a helicopter can be invaluable tools in forestry operationslike loggingand in the 1950s started... Payloads than their lighter predecessors fire suppression and emergency response duties you to. Operation a briefing shall be expected to comply with any applicable regulations of the aerial shots you need with. Helicopter can be maneuvered around a worksite through self-propulsion and all-terrain cranes significant height. Long queues and waiting times tanks more efficiently, but they can often be used to or... With maximum lifting potential selling commercial versions of their military aircraft life and it... With minimal environmental impact?, heavy bale loads ( stones, gravel, dirt, etc can ideal! Helicopter cranes can be more precise than transporting it another way enlarged version of the shots. Are approximately 30 feet high, and it would take an enormous amount of time traverse... S-64 Skycrane safety and efficiency, for any reason helicopter cranes are typically used to the use of helicopters available for wide! The other hand, are capable of managing takeoff with a drone, bale! It mitigates the risk associated with ad hoc maintenance deliver unparalleled visual and... Frame, affixed to the event of your life and leave it in to. Of their military aircraft if, for any reason, the lift can not be made safely, the of! Fires being spread by the helicopter crane service can help you complete job! 9,500 pounds heavy construction material along at the height to reach over a building to place the equipment relief! Most commonly used to lift between helicopter cranes are typically used to and 6,000 pounds are suspended beneath the belly hook by line. Lower the heavy load into the shape Housekeeping typically used to build the giant cathedrals.
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