檢視單個文章
舊 2003-07-31, 12:11   #5
Ta-Chi
輕度攀岩者
 
註冊日期: 2003-05
文章: 77
Ta-Chi
中間確保系統

A reasonable and very good system! It\'s simple and easy to understand!

However, let me challenge Milk (back to those good, old days, isn\'t it, Milk?):

1) The system needs at least two extra quickdraws. (I doubt that one would bring one extra quickdraw and two extra biners. Besides -- if the two extra biners were taken from one quickdraw -- how would one hendle that quickdraw without biners?) But what if one has only one quickdraw remaining?

2) A1 and A2 need to be at equal distance. But this also means that the leader\'s position is to be consrained by the A1\'s length. How to avoid such restraint (more than often a leader needs to be \"sit\" comfortably to increase the safety of belay)?

3) Figure 4 is an innovative way to set up a directional belay like GriGri does. But can it be changed or elaborated to become a belay-escape (que-bao-tuo-chu) system? (The function and utility of belay-escape method may need more discussion, for I have found that someone may have misunderstood them) [img]images/forum/smilies/[/img]
Ta-Chi 目前離線   回覆時引用此篇文章