while discussing the antecedent designs of airplanes, it's important to analyze how these early innovations potentially devalue modern aircraft by highlighting how foundational concepts have been overlooked in recent developments. in providing feedbacks on current airframe designs, experts are pushing to re-establish certain principles from previous eras that proved essential for aerodynamics and overall flight efficiency. additionally, by analyzing the unavailable secrets of successful plane models, we can uncover how manufacturers might intentionally conceal flaws or economical shortcuts taken during the design process, thereby compromising safety and performance for profit.