he PRCA is a contemporary and very progressive association that supports the development and regulation of the ropes challenge course and canopy tour / zip line industry. Established in 2003, the PRCA has achieved tremendous accomplishments, surrpassing other associations to become the first ANSI Accredited Standards Developer for the industry. The PRCA currently has active draft standards within the ANSI review process and public reviews are currently being conducted.
Professional Ropes Course Association - PRCA - Standards - ANSI
Showing posts with label zip-line. Show all posts
Showing posts with label zip-line. Show all posts
June 5, 2008
Professional Ropes Course Association - PRCA - Standards - ANSI —
January 5, 2008
Zip-line - Wikipedia, the free encyclopedia
From Wikipedia, the free encyclopedia
A zip-line (also known as a flying fox, zip wire, aerial runway, death slide or tyrolean crossing) consists of a pulley suspended on a cable mounted on an incline.
They are designed to enable a user propelled by gravity to traverse from the top to the bottom of the inclined cable, usually made of stainless steel, by holding on or attaching to the freely moving pulley. Zip-lines come in many forms, most often used as a means of entertainment. They may be short and low, intended for child's play and found on some playgrounds.
Longer and higher rides are often used as a means of accessing unusual areas (a rainforest canopy for instance) or found at outdoor adventure camps where they are usually one element on a larger challenge or ropes course.
January 2, 2008
Zip-line Professional courses- Wikipedia, the free encyclopedia
Professional versions of a zip-line are most typically used as an outdoor adventure activity. In contrast to "flying foxes" professional courses are usually operated at higher speeds covering much longer distances and sometimes at considerable heights. The users are physically attached to the cable by wearing a harness which attaches to a removable trolley. A helmet is required on almost all courses of any size.
Cables can be very high, starting at a height of over 30 feet (9 m), and traveling well over 1500 feet (457 m). All zip line cables have some degree of sag. The proper tensioning of a cable is important and allows the ability to tune the ride of a zip line.
Users of zip-lines must have means of stopping themselves. Typical mechanisms include:
- Thick purpose-built leather gloves.
- A mat or netting at the lower end of the incline.
- An arrester system comprised of springs, pulleys, counter-weights, bungee cord or other devices, which slows then stops the trolley's motion.
- Gravity stop utilizing the inherent nature of the sag in the cable. The belly of the cable is always lower than the termination point. The amount of uphill on a zip line controls the speed at which the zipist arrives at the termination point.
Costa Rica is known for their Canopy Tours where a vacationer can zip through the rainforest. The zip-lines are scattered among several platforms, some as high as 130 feet.
Zip-lines are a common way to return participants to the ground at the end of a ropes adventure course.
In past days in the Australian outback, flying foxes were occasionally used for delivering food, cigarettes or tools to people working on the other side of an obstacle such as a gully or river. Australian troops have used them to deliver food, mail and even ammunition to forward positions in several conflicts.
Zip-lines may be dangerous devices, requiring proper knowledge of ropework.
Zip-line - Wikipedia, the free encyclopedia
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