Variations
There are a few different variations of the 3-ring system. The original 3-ring release from the late 1970s is now known as large 3-rings. A version using smaller rings (mini rings) was introduced in the 1980s. The reasons for the development of the mini ring system and the associated smaller risers were mostly aesthetic; the mini rings do not increase safety but actually reduce the mechanical advantage inherent in the system thereby increasing the pull force a jumper must apply to cut-away. Tandem systems still use rings that are even larger than the original rings, and some tandem rigs even use four rings (e.g., Advance Tandem by Basik). Other variations have placed the rings under the risers facing back instead of forward of the risers facing front or varied the geometry of the rings for example using an elongated middle ring for a claimed improvement in mechanical advantage on Aerodyne's miniforce system.
Read more about this topic: 3-ring Release System
Famous quotes containing the word variations:
“I may be able to spot arrowheads on the desert but a refrigerator is a jungle in which I am easily lost. My wife, however, will unerringly point out that the cheese or the leftover roast is hiding right in front of my eyes. Hundreds of such experiences convince me that men and women often inhabit quite different visual worlds. These are differences which cannot be attributed to variations in visual acuity. Man and women simply have learned to use their eyes in very different ways.”
—Edward T. Hall (b. 1914)