Eleanor Finch
Cranes are an essential component of yachts, facilitating various tasks such as cargo handling, rescue operations, and equipment hoisting. A man-rated crane, specifically, is designed for transferring personnel and cargo, ensuring safe conditions for those on board. These cranes are equipped with mechanical and hydraulic systems to handle heavy loads while maintaining precision and control. The safety and operational aspects of man-rated cranes are governed by regulations and standards set by certifying bodies, ensuring the reliability and performance of these crucial pieces of yacht equipment.
| Characteristics | Values |
|---|---|
| Crane Type | Knuckle boom crane, Spider crane, Deck crane, Yacht handling crane |
| Crane Functions | Cargo handling, Rescue boat and life raft hoisting, Tender, jet ski and submarine hoisting, Personnel transfers, Maintenance, Repair, Launching of new vessels |
| Crane Capacity | 300 kg (Spider crane), 15 tonnes (Cramm deck crane), 3.25 tonnes of rescue equipment (Cramm deck crane), 3000-16000 kg/mtr (Cramm modulair deck crane series), 300 tonnes (Tire Gantry Crane), 800 tonnes (Boat and Yacht Handling Crane) |
| Crane Components | Latch hook for cargo, Quick-release hook for rescue operations, Hoisting cable (fibre rope or galvanised steel cable), Jib light, Radio remote control, Soft and firm belt (Yacht handling crane) |
| Crane Safety | SOLAS rated, Certified by Lloyds Register of Shipping, Bureau Veritas, Design appraisal document (DAD), LAME regulations |
| Responsibilities | Crane operator and mechanic ensure the crane is safe for personnel transfers, Chief Officer Mate responsible for exterior and deckhands, Chief Stewardess responsible for interior |
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What You'll Learn
- Yacht handling cranes are designed to handle yachts and boats
- Cranes can be used for cargo handling and rescue operations
- Cranes must be regularly inspected for safety by the operator and mechanic
- Cranes can be configured with latch hooks for cargo or quick-release hooks for rescue
- Cranes can be custom-made to meet specific requirements
Yacht handling cranes are designed to handle yachts and boats
Yacht handling cranes, also known as mobile boat handlers, are designed to handle yachts and boats. They are widely used in water sports games, yacht clubs, navigation, shipping, and learning. These cranes can transport yachts and boats weighing between 32 and 1000 tons from the shore to the dock for on-shore maintenance, repairs, or the launching of new vessels. Yacht handling cranes feature a soft and firm belt to lift the boat or yacht, ensuring that the surface is never damaged. They can also be adjusted to accommodate different boat widths and can be steered to place boats in any designated position.
Yacht handling cranes come in various configurations, each with its own advantages. For example, the largest crane vessels are often catamarans or semi-submersible types, which offer enhanced stability and reduced platform motion. Semi-submersible crane platforms are advantageous when water conditions are too rough for conventional hulls. They have a lower response to waves and swells due to their reduced waterplane area, and their stability can be adjusted by ballasting to suit the load.
Another type of crane vessel is the revolving derrick barge, a slewing crane mounted on a barge that can rotate independently of the hull when carrying a load. While these cranes are highly versatile, they are also expensive and complex, with limitations on the sea states in which they can operate safely. They are typically operated from a fixed position and use the slewing and luffing capabilities of the derrick to position the crane tip for picking up or setting down loads.
In addition to these configurations, yacht handling cranes can also be designed with specific features to meet unique requirements. For instance, Cramm deck cranes are ideal for hoisting equipment such as tenders, jet skis, and submarines onto and from superyachts. They can also be used for cargo handling, rescue boat hoisting, and life raft hoisting. To ensure the safety and quality of the cranes, special fibre rope is supplied as the hoisting cable, offering comfort and easy handling. However, upon request, this can be changed to a galvanised steel cable for extra strength.
Furthermore, PALFINGER knuckle boom cranes are designed for marine applications, allowing for the movement of extremely heavy loads while optimising deck space. They offer improved control levels, making them precise in rendering sea-tossed men. These cranes are SOLAS-rated, enabling crews to deploy rescue boats swiftly. Yacht handling cranes are an essential component of yacht and boat management, providing versatility, convenience, and safety in various applications.
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Cranes can be used for cargo handling and rescue operations
Yacht cranes are an essential component of yacht design, and they serve multiple purposes, including cargo handling and rescue operations.
Cranes used for cargo handling are typically deck cranes, which can be modular or custom-made. These cranes can be configured with a latch hook for cargo handling and are often operated using hydraulic and electric equipment. The hoisting cable is usually made from special fibre rope, but it can be changed to galvanised steel cable for extra strength. Yacht cranes are also used for lifting equipment such as tenders, jet skis, and submarines onto the yacht.
For rescue operations, yacht cranes are crucial for the safe handling and deployment of rescue boats. These cranes are often equipped with a quick-release hook for swift attachment and detachment of the rescue boat, enabling rapid deployment in emergencies. Rescue cranes always have cable controls and can be provided with certification from organisations like Lloyds Register of Shipping or Bureau Veritas.
The maintenance and operation of yacht cranes require the teamwork of seafarers onboard. It is important to regularly inspect and maintain the crane to ensure it is in a safe condition for personnel transfers and to prevent problems that could lead to extended port stays or even loss of life. Hydraulic leaks are common in all types of cranes, and it is crucial to never check for leaks with bare hands as the pressurised hydraulic oil can be harmful to the skin and eyes.
Yacht handling cranes, also known as mobile boat handlers, are used to transport yachts and boats from shore docks for on-shore maintenance, repair, or launching new vessels. These cranes can handle different tonnages and are designed to transfer boats with heights that surpass the crane's height. They can also adjust the width of the main girder according to the boat's size.
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Cranes must be regularly inspected for safety by the operator and mechanic
Yachts with man-rated cranes are those with cranes designed for transferring personnel and cargo. These cranes have a crane man basket with a capacity of 300 kg, which can lift two people for aerial maintenance or personnel transfers.
To ensure the safety of personnel, crane operators and mechanics are responsible for regular inspections of the crane. These inspections are crucial to identify any potential hazards or issues that may compromise the safe operation of the crane. Inspections should be conducted before each use and at monthly and annual intervals, as per OSHA guidelines.
Before each use, a visual inspection is necessary to check all moving parts for any signs of damage or discrepancies. This includes inspecting the hook latch to ensure it is secured properly. Operators should also be vigilant for any modifications made to the crane, as changes to the equipment, safety devices, control systems, or structural components can impact its safe operation.
Monthly and annual inspections are more comprehensive and are often conducted by certified inspectors or technicians. These inspections follow a detailed checklist, such as the OSHA 222-point inspection checklist, to ensure all aspects of the crane are thoroughly examined. Inspectors will assess the crane's structural integrity, including the hull, propulsion, steering systems, and power generation. They will also verify compliance with safety codes and regulations, such as the MCA Large Commercial Yacht Code (LY2) or similar standards adopted by other flag administrations.
To ensure the competence and safety of crane operators, comprehensive training is mandatory. This training covers various topics, including load lines, safety procedures, hazard communication, and specific crane models. Operators are also required to undergo practical hands-on training, including emergency load-lowering procedures, to gain proficiency in handling different types of loads and situations.
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Cranes can be configured with latch hooks for cargo or quick-release hooks for rescue
A man-rated crane on a yacht is designed for transferring personnel and cargo. The crane operator and mechanic are responsible for ensuring the crane is in a safe condition for personnel transfers. Cranes can be configured with latch hooks for cargo or quick-release hooks for rescue.
Latch hooks are used to securely attach loads to cranes. They are typically made of iron or steel, with some common materials including carbon steel, alloy steels, wrought iron, HSLA, chrome steel, stainless steel, and cast iron. There are two main types of latch hooks: spring-loaded latches and rigid safety latches. The former is designed to prevent the accidental release of loads, while the latter provides an additional layer of security by requiring manual release.
Quick-release hooks are used in rescue operations to efficiently and safely release rigging from a distance. These hooks can be attached to a crane or spreader beam, allowing for remote load release without the need for manual intervention. This feature enhances safety by eliminating the risk of accidents during high-altitude operations and reducing the physical demands on operators, such as climbing onto the crane.
The decision to use a latch hook or a quick-release hook depends on the specific application and safety considerations. While there are no clear industry-wide rules, organisations like the Occupational Safety and Health Administration (OSHA) provide guidelines and interpretations to ensure safe lifting practices.
The EVO 5 and EVO 25 crane hooks by Elebia offer a range of options for both cargo and rescue operations. These hooks can be used with various sling types and feature remote release capabilities, magnetic sensors, and overload protection, contributing to enhanced safety and productivity.
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Cranes can be custom-made to meet specific requirements
Additionally, Weihua Cranes offers a boat and yacht handling crane that can handle different tonnage boats or yachts from the shore side, catering to a range of customer requirements. This crane can be used for maintenance on the shore side or to launch new boats into the water. It is also adjustable, allowing for the width of the main girder to be modified according to the boat's dimensions.
Furthermore, NauticExpo offers a range of yacht cranes, including the Nautical Structures Mini-Crane Davit System, which features advancements in small davit technology. This crane can lower a rescue boat or raft into the water with the help of its own weight and includes a hydraulic slewing type davit. Another option is the YMV Yacht davit, which can be hydraulic or electric-driven, with a capacity range of 500 kg to 3t and a boom outreach of 2.5 to 7 meters.
Moreover, PALFINGER knuckle boom cranes are designed for marine applications, allowing for the movement of extremely heavy loads while optimising deck space. They offer improved control levels and are SOLAS-rated, enabling crews to deploy rescue boats swiftly. These cranes are designed for heavy loads, ensuring stable and precise movements even without a load. The crane man basket has a capacity of 300 kg, making it suitable for lifting two people for aerial maintenance or personnel transfers.
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Frequently asked questions
A man-rated crane is designed for transferring personnel and cargo. It is also known as a mobile boat handler and can be used for maintenance, repair, or launching new vessels.
Some examples of man-rated cranes include the PALFINGER knuckle boom crane, Cramm deck cranes, and Atlas carbon davit cranes.
Man-rated cranes have improved control levels and are designed to handle heavy loads while leaving more room on the deck. They are also equipped with safety features such as a latch hook for cargo or a quick-release hook for rescue operations.
The crane operator and mechanic are responsible for ensuring the safe condition of the crane for personnel transfers. Additionally, during the final testing phase, an agent from a certified body witnesses and certifies the crane's security, safety, and required capacity.
