112551001_245-7622723_A.pdf

This document is a technical drawing specification for a propeller blade used in the LPD-17 Class naval vessels. The drawing provides comprehensive design specifications for a propeller blade with a nominal design diameter of 192.95 inches and includes detailed dimensional data, geometric parameters, and manufacturing requirements.

The specification establishes critical dimensional tolerances across multiple blade stations, with tolerances ranging from ±.01 inches for dimensions 8 inches or less to ±.30 inches for angular dimensions. Manufacturing requirements include specific provisions for surface finish, welding repair procedures, and balancing criteria. The document mandates certified propeller inspection by NAVSEA and a final inspection report signed by a qualified person prior to propeller release. Key inspection requirements include dimensional verification using cartesian coordinate systems, blade thickness tolerance checks at specified stations, and liquid penetrant inspection on all blade surfaces. Balancing procedures must achieve specific residual unbalance limits, with separate documentation required for five-blade sets versus individual blade balancing. The drawing contains detailed tables of section offsets, coordinates corresponding to blade surface intersections, and fairing fillets radii specifications. Manufacturing and identification standards follow federal specifications, with the propeller blade subject to preservation and packaging requirements per MIL-DTL-24595. The document includes multiple detail views and cross-sectional diagrams illustrating blade geometry, transverse projections, pitch variations, and trailing edge truncation specifications essential for fabrication and quality assurance.