C17MeasurementSheet.pdf

This document is a technical measurement sheet for a C-17 aircraft. It provides instructions for conducting dimensional measurements of the aircraft's cargo door opening (iris) and surrounding structure.

The measurement procedure requires parking the aircraft centrally between door openings and establishing a grid of reference marks at 18-inch centers around the edges of the iris in both vertical and horizontal directions. Measurements are to be recorded using a laser or spirit level, with data points marked along a coordinate system numbered 0-20 vertically (rows A-R horizontally). The accompanying diagram illustrates the measurement grid overlaid on the cargo door opening profile, with black dots indicating specific measurement points and blue and green lines showing the reference grid structure. This sheet serves as a standardized template for documenting the physical dimensions and condition of the C-17 cargo door mechanism.