Knots Flashcards
MBS
Minimum Breaking Strength
1 Kn
224.7 lbs ~ 225 or 1 person load
SSSF
Static System Safety Factor 10:1 DCFD
1/2” static Kernmatle rope is rated at?
9,000lbs (40Kn)
How much is is rope de-rated bc of knots
30-50% we assume its 50%
Strength and use of Figure 8 on a bight
77% for 1/2” 6,950 lbs used as a connection point or a stopper knot
Strength and use of Figure 8 re-weave
77% for 1/2” 6,950 used as a connection point around an object
Strength and use of Double Loop 8
77% for 1/2” 6,950 used as a connection point (tower Crain)
Strength and use of in Line 8
77% for 1/2” 6,950 used as a connection point
Strength and use of Bowline (with Yosemite Finish)
67% for 1/2” 6,000 used for connection point around an object
Strength and use of Double Long Tail Bowline
67% for 1/2” 6,000 used as main connection for all mirrored systems
Strength and use of Munter around a carabiner/object
Used as a fiction device for belay or rappel not for rescue we might use it to lower something
Strength and use of Butterfly
75% for 1/2” 6,750 used as a mid-line knot to form a connection point, or to isolate a section of damaged rope
Strength and use of Handcuff knot
Used to clinch around two items i.e. wrists and arms pull
Strength and use of Water Bend
64% for 1” tubular webbing 2,560
-used to connect two sections ends of webbing typically to create a loop