In theory boost a fallen climber is to make softer the hit suffered by him for a possible fall.
Using a more technical language is the reduction of strength of shock from a fall on insurance anchorage climber, and seams.
But this is one of the greatest legends of the sport climbing and is surrounded by so much controversy, which is normally realized by heated discussions between practitioners.
Many people confuse leave a huge “belly” with the fact that effectively “invigorate” the fall of a climber.
In fact the Act of advancing a fallen climber has more to do with the dynamic behavior of materials, and less with strategies and technical adjustments.
To understand well what is fuelling a fall it is crucial that before you know what is a factor of a fall.
The fall factor is the result of the relationship between the height and the length of the rope.
This factor is directly relating with the load that the climber during your fall, and always depends on the distance from the last climber protection.
So if the insurer let her on the rope, this range also enters the fall factor calculation.
Using the mathematical ratio of fall factor increasing a possible “belly” on rope 1, 2 and 3 meters, we have the following results below
Analyzing this chart it is easy to conclude that when more belly if let in a rope for the safety of the climber, the greater the fall factor.
That is, in the case of a distance of 1 meter from the climber until last fall factor protection almost doubles if we let a 3 meters.
But as to whether this increase is significant in terms of cargo carried out the rope, it’s nice to know another equation that measures the dependence of strength of shock with the fall factor.
Making the Bill whereas an 80 kg climber, 21,500 string constant (k = section x Young’s modulus), and a 10 mm rope.
The Young’s modulus or modulus of elasticity is a mechanical parameter that provides a measure of the stiffness of a solid material.
Looking at the chart it can be concluded that the strength of the shock on the climber, when there’s a belly, increases.
So the charge made on the climber can increase 50 to 100 kg (according to the data used as an example).
In the same way that we have seen in the fall factor, there is an increase of load on the climber when using a larger belly on the rope.
Noting the cold data, it can be concluded that a big belly in rope reduce shock force on the climber.
A reality to exist a stomach is what causes the fall is larger, causing the climber “fly” for longer than necessary.
The true goal of leaving a little slack in the rope (not to be confused with belly) is streamlining the progression of the climber, not your fall.
Insurer who has a habit of leaving large bellies in your security, isn’t good at what he does.
Falling climber saved by his partner. — Stock Photo …
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