16-09-2021

Rigging Formulas Free

Lift force calculator is designed to calculate its force in Newton. The lift coefficient (Cl) is a dimensionless unit, the greater the CI will generate more lift force. When the lift is in motion, pressure is created, thus the greater velocity leads to high speed in traveling. To use this lift calculator, just enter the lift coefficient (CI), its density, velocity and the area to get the resultant value. These elements has exposed to generate aerodynamic lift.

Rigging program. It requires persons who perform rigging or operate hoisting equipment to be trained to ensure that the personnel are competent to perform the operation. The qualification is for a period the three years. The training requires a written exam and practical demonstration. The requirements for operator training.

Lift Force Calculation

  • Form 12-11 E, requirements for FM 5-125, Rigging Techniques, Procedures, and Applications (Qty rqr block no. GOVERNMENT PRINTING OFFICE: 1995 - 628 - 027 / 40064.
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Lift force calculator is designed to calculate its force in Newton. The lift coefficient (Cl) is a dimensionless unit, the greater the CI will generate more lift force. When the lift is in motion, pressure is created, thus the greater velocity leads to high speed in traveling. To use this lift calculator, just enter the lift coefficient (CI), its density, velocity and the area to get the resultant value. These elements has exposed to generate aerodynamic lift.

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Formula:

L = 1 / 2 (CL x ρ x V2 x A)
Where,L = Lift ForceCL = Coefficient of Liftρ = DensityV = VelocityA = Area

Example:

An Airplane flies at velocity of 15 m/s having an area of 25 m2. The density of air is 25 kg/m3 and Coefficient of Lift is 12.

Solution:

L = 1 / 2 (CL x ρ x V2 x A)
= 1/2 (12 x 25 x 152 x 25)
= 843750 N

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Term
XIPS
IWRC
RRL
Definition
Extra Improved Plow Steel
Independent Wire Rope Core
Right Regular Lay
Term
GAC
Definition
Galvanized Aircraft Cable
Term
SWL
Definition
Safe Working Load
Term
WLL
Definition
Working Load Limit
Term
Breaking strength of 3/8' 7x19 GAC
Definition
14,400 lbs
Term
Breaking Strength of 1/2' 7x19 GAC
Definition
22,800 lbs
Term
Breaking Strength of 1/4' 6x19 IWRC XIPS
Definition
6,800 lbs
Term
WLL of a 3/8' Shackle
Definition
1-1/2 Tons
Term
WLL of a 1/2' Shackle
Definition
3 Tons
Term
WLL of a 5/8' Shackle
Definition
4-1/2 Tons
Term
WLL of a 3/4' Shackle
Definition
6-1/2 Tons
Term
SWL of a 1/2' STAC
Definition
12,000 lbs
Term
1 Meter equals how many Feet?
Definition
3.28
Term
1 Centimeter equals how many Inches?
Definition
0.3937
Term
1 Millimeter equals how many Inches?
Definition
0.03937
Term
1 KiloNewton equals how many Pounds?
Definition
225
Term
1 Kilogram equals how many Pounds?
Definition
2.2
Term
You always by the 'magic number' when you convert Metric to Imperial.
Definition
multiply
Term
You always by the 'magic number' when you convert Imperial to Metric.
Definition
divide
Term
When calculating Resultant Force on a pulley, if the cable angle is 0 degrees, what is the Multiplying Factor on the Load?
Definition
2.0
Term
When calculating Resultant Force on a pulley, if the cable angle is 45 degrees, what is the Multiplying Factor on the Load?
Definition
1.84
Term
When calculating Resultant Force on a pulley, if the cable angle is 90 degrees, what is the Multiplying Factor on the Load?
Definition
1.41
Term
When calculating Resultant Force on a pulley, if the cable angle is 120 degrees, what is the Multiplying Factor on the Load?
Definition
1.0
Term
When calculating Resultant Force on a pulley, if the cable angle is 150 degrees, what is the Multiplying Factor on the Load?
Definition
0.51
Term
When calculating Resultant Force on a pulley, if the cable angle is 180 degrees, what is the Multiplying Factor on the Load?
Definition
0.0
Term
In a rope and pulley system there can be no mechanical advantage without at least one pulley in the system.
Definition
running
Term
The rule of thumb for quickly determining mechanical advantage in a rope and pulley system is to count the number of parts of the that are applying force on the running block.
Definition
lift line
Term
What is the maximum recommended fleet angle of a cable running between sheaves?
Definition
1.5 degrees
Term
A good rule of thumb for limitting the fleet angle of a cable between two sheaves is that you are allowed 1 unit of offset for every units of distance between the sheaves.
Definition
40
Term
When calculating the Maximum Allowable Offset between two sheaves, you must multiply the Distance between the two sheaves by what constant value?
Definition
0.026
Term
Describe the equation for calculating fleet angle when the Distance and Offset between two sheaves is known.
Definition
Angle = Arctangent x (Offset/Distance)
Term
What is the minimum recommended D:d ratio for sheaves used with 7x19 and 6x19 construction wire ropes?
Definition
30:1
Term
What is the formula for calculating the included angle of a two point bridle?
Definition
Angle = Arctan H1/V1 + Arctan H2/V2
Term

ETCP Formula:

Resultant Force

on a Pulley

Definition

[image]

Where'P' = Load

Term

ETCP Formula:

Horizontal Force on Anchor 1

in a 2-Point Bridle

Definition
[image]
Term

ETCP Formula:

Horizontal Breast Line

Force

Definition
[image]
Term

ETCP Formula:

Vertical Force on Anchor1

in a 2 Point Bridle

Definition
[image]
Term

ETCP Formula:

Tension in Leg 1

of a 2 Point Bridle

Definition
[image]
Term

ETCP Formula:

Length of Leg 1 in a

3 Point Bridle

Definition
[image]
Term

ETCP Formula:

Distribution of a Single

CPL on a Beam

Definition
[image]
Term

ETCP Formula:

Distribution of Multiple

CPLs on a Beam

Definition
[image]
Term

ETCP Formula:

Distribution of Multiple and
Cantilevered CPLs on a Beam

Definition
[image]
Term

Formulas for Center

of Gravity of a Beam

Definition

Side 1 = (L2 x Span) / (L1 + L2)

Side 2 = (L1 x Span) / (L1 + L2)

Term

What is the Formula for

Working Load Limit?

Definition

WLL = Breaking Strength /

Design Factor

Term

Formula for Shock

Load

Definition
FS = W x ( DFF / DSt +1)
Term

Weight of Water:

By Area

By Volume

Definition

A: 5.202 lb/ft2 per inch deep

V: 62.428 lb/ft3