Throwbag rope caracteristics

Coreless Polypropylene Rope

Strengh 8mm:cca. 4kN

Abrasion test (see it here):  destroid in 3 sec.

Cover:Polypropylene

Core: no core

Stretch:high

general comment: sorrily there are plenty of thowbag ropes without core on the market. Producers have lower production costs but does not mean you pay less. Your rope will be extremly weak and non durable. the advantage is: light and small. My advice is: Try to avoid these!

Shock absorbing Polypropylene ropes (special braiding)

Strengh 8mm: cca 5-7 kN

Abrasion test (see it here): destroid in 3-8 sec

Cover: Polypropylene, stretchy braiding

Core: Polypropylene, stretchy braiding

Stretch: extremly high

general comment: the idea behind the stretch is to avoid the "big pull" when catching a swimmer. To use mechanical advantage or simply pull some pinned material is almost impossible. My experience is that even rescueing swimmers makes it a "Catapult". After absorbing the energy it gives it back. i personally would never use again, they are like bungee ropes.

Polypropylene Rope

(double braided and kernmantle)

Strengh 8mm: cca 8kN

Abrasion test (see it here): 5-10 sec.

Cover: Polypropilene

Core: Polypropilene

Stretch: relative low

general comment: good ropes on the market, compared to the ones before, these are worth to buy.

Syntec and Spectra ropes (including dyneema)

Strengh 8mm: cca. 16 kN (the most)

Cover: Polypropylene

Core:Polypropylene/Dyneema

Stretch: relative low

Abrasion test (see it here): 10 sec

general comments:expencive double priced ropes. If You have the money buy it! Still the biggest damage on ropes is caused by abrasion, so it gets damaged easily just like the other ropes. It does not give you a longer life or better resistence for abrasion, just a higher tensile strengh.

WWTc Ropes

Strengh 8mm: 1000kg (knotted 700kg)

Abrasion test (see it here):  60 sec+

Cover: Polypropylene

Core: Polypropylene/Polyester

Stretch:low

general comment: more durable and resistant rope on an affordable price, though it gets damaged just like all. The advantage is that after a surface damage it will hold until you finish your rescue as the core is extremly durable. The Polyester brings the heat away from the abrasion zone. The Rope is slightly heavier and stiffer.

Stiffness is due to the super tight cover so gravel can not enter the rope so easy, this will give your rope a bit longer life.

I personally like stiffer ropes, but you need to get used to it.