Paper claim: k ≥ 185 N·m/rad with ≥ 20% margin (k_supplied = 220 N·m/rad)
Recomputed result: At the design point (v_egress = 205 m/s, c_fin = 120 mm, S_fin = 0.0216 m², h_fin = 180 mm, m_fin = 154 g, Cmα = 0.8, damping = 0.7):
The reported margin is positive but below the stated requirement of at least 20%. The requirement remains unresolved; positive headroom is not evidence that the larger stated threshold has been met. The legacy test named for a 20% margin does not enforce that lower bound. These are analytical values, not component measurements.
Artifact paths:
docs/EVIDENCE/C6_spring_sweep.jsondocs/EVIDENCE/C6_spring_sweep_plot.pngDeterministic computation — no physical measurement