Assumption-Constrained AW189-Class Hover-Ceiling Sensitivity Study

This archive contains the MATLAB/Simulink source code, public input files, generated CSV/MAT results, figure source files and run instructions for a public-data, assumption-constrained sensitivity study of density-altitude-dependent tail-rotor power split in an AW189-class helicopter. The archive is intended to reproduce the numerical validation results and figure files reported in the associated study. The outputs are conditional model scenarios and are not certified aircraft performance or full-aircraft validation. The archive intentionally excludes manuscript source files, compiled papers and TeX build tools. NASA HVAB and AW189 public technical documents are reused sources with retained attribution. Author-created code is released under the MIT License, and author-generated results and figure source data are released under CC BY 4.0. These licenses do not apply to the redistributed NASA or ANAC source materials.