Member content Archive
Three-way loading of carabiners. This issue is often presented as black-and-white and is rarely given much consideration. Most users know that manufacturers warn against certain loadings but what does this really mean? Carabiner manufacturers show that is
This article goes beyond the standard rule-of-thumb “90° puts 141% on the redirect anchor”. If we have a suspended load with a 90º redirection through an aluminium carabiner then we can calculate the effects of friction through
Scientific notation & standard units The standard ‘shorthand’ for scientific notation involves abbreviating numbers to the nearest division of 1,000. The metre (m) is the standard metric unit of length. This ‘m’ will often have another letter
Rope grabs: when will they slip? There are many rope grabs used by technicians including: Personal ascenders Attachment devices for raising people and loads Attachment devices for positioning people and loads Just how much can each of
Auto locking belay devices: when will the rope slip? There are many auto-locking devices used by technicians as: Personal descenders Anchored devices for lowering loads Anchored devices to hold tension while raising loads Just how much can
