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Identifies and teaches the three parameters of lift calculations involved in the safe operations of a crane. Covers radius, boom angle, and boom length calculations and explains how to use load charts. Includes a leader's guide and 25 program guides.
Williams Learning Network, 15400 Calhoun Dr., Rockville, MD 20855-2762, Phone: (301)315-6700, Toll-free: 800-848-1717, Fax: (301)315-6880, Email: mait@willearn.com, URL: http://www.willearn.com
Available on VHS
Running time 12 minutes.
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