Fall Factor 1-2 Checker for Rigging

Geometric actual fall distance/active rope length only.1 and 2flags are not rigging grades, impact force, equipment survival or safe fall authorization.

Description

Geometric fall factor compares fall distance with active energy-absorbing rope length.

Geometric fall factor compares fall distance with active energy-absorbing rope length.^[1]

It does not specify peak force, equipment capacity or injury consequences.

When to use Fall Factor 1-2 Checker for Rigging

Use this tool to obtain observedGeometricFallFactor, atOrAboveNominalFactorOne, atOrAboveNominalFactorTwo from the supplied records using the stated calculation. Establish the survey or observation scope, reference frame, units and independently applicable calibration or qualified plan.

How to use Fall Factor 1-2 Checker for Rigging and understand its results

Establish the survey or observation scope, reference frame, units and independently applicable calibration or qualified plan.
Enter actualFallDistanceMeters, actualActiveEnergyAbsorbingRopeLengthMeters, using the field meanings and rules below, then run the tool.
Read result.observedGeometricFallFactor, result.atOrAboveNominalFactorOne, result.atOrAboveNominalFactorTwo. Use the units and sign conventions below, and review any unknown records separately.
Correct any reported input issue and run again. Before using a successful result, check the stated units, signs, reference scope and observation coverage.

Input field	Meaning	Value type	Requirement
actualFallDistanceMeters	Actual fall distance meters	number	Required
actualActiveEnergyAbsorbingRopeLengthMeters	Actual active energy absorbing rope length meters	number	Required

Require nonnegative fall distance and positive active rope length in metres. Divide for the geometric factor and separately compare it inclusively with one and two. No factor upper limit, force model or equipment capacity is imposed.

fallFactor=fallDistance/activeRopeLength; nominalOne=(factor≥1); nominalTwo=(factor≥2)

Use the matching field units and the exact boundary, ordering and reference rules above.

Output field	Meaning	Value type
result	Qualified observed calculation or explicit reference	object
result.observedGeometricFallFactor	Observed Geometric Fall Factor	number
result.atOrAboveNominalFactorOne	At Or Above Nominal Factor One	boolean
result.atOrAboveNominalFactorTwo	At Or Above Nominal Factor Two	boolean

json

{
  "input": {
    "actualFallDistanceMeters": 1,
    "actualActiveEnergyAbsorbingRopeLengthMeters": 2
  },
  "output": {
    "result": {
      "observedGeometricFallFactor": 0.5,
      "atOrAboveNominalFactorOne": false,
      "atOrAboveNominalFactorTwo": false
    }
  }
}

Limitations and assumptions

The actual observation coverage, calibration and qualified plan determine applicability. A numerical result does not establish survey accuracy, route suitability, atmosphere conditions or equipment adequacy beyond the declared comparison.

Missing required fields, unknown fields, wrong types and violated rules return input issues. Numeric values and outputs must be finite. Extremely large composite outputs are rejected.

Alternative or Complementary methods

For a related step, use Deviation Redirect Angle Force Multiplier Calculator: An ideal rope redirect combines equal tensions according to travel-direction deflection. For a complementary comparison, use Rope Stretch Elongation Under Load Calculator: Rope elongation describes a particular rope under matched load and condition.

References

Fall Factor 1-2 Checker for Rigging — tool.io

Similar or alternative tools

Deviation Redirect Angle Force Multiplier Calculator
An ideal rope redirect combines equal tensions according to travel-direction deflection.
Rope Stretch Elongation Under Load Calculator
Rope elongation describes a particular rope under matched load and condition.