All david duerr Articles

Why staying centred matters: Lessons from Gothic cathedrals to modern crane outrigger stability
Geoffrey Goldberg discusses the importance of being centred
American, Cranes & Transport - November-December 2024
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November-December 2024
Friday round up: Mobile crane guides, wage theft crisis, safety below the hook, moving massive submarines
Lead stories from the Crane and Transport Briefing week beginning 11 November
Support documents for mobile crane operation
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Two new guides support mobile crane operation. David Duerr, P.E. (ret.) reports.
Ground stabilization and the proper set up of cranes
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David Duerr discusses why it’s important to not gloss over weak soil and rules of thumb methodologies.
Celebrating the 60th anniversary of the hydraulic gantry system
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Looking back at the milestones for one of the world’s most revered rigging tools.
American Cranes & Transport - April 2023
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April 2023