Proposed Standard Procedure for Computing Flight-Test Climb Data addresses the pressing issue of unreliable statistics on airplane climbing performance, exacerbated by varying computational methods used worldwide. Current systems, numerous and inconsistent across different countries and even within individual test plants, impede meaningful comparisons and hinder analytic research in aeronautics. This book proposes a unified, physics-based computational method to calculate true rates of climb using barograph records and temperature observations, aiming to standardize computations across the industry. By encouraging criticism and collaboration among aeronautical engineers, the author hopes to achieve international standardization, enhancing the reliability of climb performance data and facilitating advancements in the field.