Natick Standards Helicopter Sling Load Training Blocks.pdf

This is a technical specification drawing package detailing the design requirements for helicopter sling load training blocks of various weights (500 lb to 22,000 lb). The drawings provide comprehensive engineering specifications for concrete training blocks used to simulate actual loads during helicopter sling load operations.

The package includes detailed requirements for concrete composition (5,000 PSI minimum strength, 1" maximum aggregate size), reinforcing steel specifications (FY = 60,000 PSI), and manufacturing requirements for nameplates and color-coding schemes for different weight blocks. Each block must undergo proof load testing according to MIL-STD-913 with specific load factors ranging from 3.5 to 3.085 times the rated weight. The drawings provide precise dimensional specifications, cross-sectional views, and assembly details for lift eye attachments, reinforcement placement, and required lashing points. Critical safety features include lift eye rod specifications, welding requirements, and proper positioning of lifting provisions. The blocks must be color-coded according to weight using specific paint colors from approved manufacturers (Solomon Colors, QC Construction Products, or Davis Colors).