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Crane and Tower Operator

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AVG. SALARY

$78,890

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EDUCATION

High school preferred +

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JOB OUTLOOK

Increasing

Real-Life Activities

Real-Life Math -- Solution

First, you need to calculate the torque. You know that at 100 feet you can safely carry 17,980 pounds. To calculate the torque you multiply the two figures.

Torque = maximum weight x radius
Torque = 100 feet x 17,980 pounds
Torque = 1,798,000 feet per pound

The weight of the diesel generator is 25,000 pounds. You can put this figure into the equation to find out the radius.

Radius = Torque / maximum weight
Radius = 1,798,000 feet per pound / 25,000 pounds
Radius = 71.92 feet

You need to reduce the radius to 71.92 feet. That is the maximum distance there can be between the operating tower and the weight for it to be moved safely. You decide to err on the side of caution and reduce the radius to 70 feet.


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