FForge Outcome Delivery
Starship Build Engineering System

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REPRODUCE — Starship Build Engineering System

Every number in this delivery is regenerated by the commands below. No network, no dependencies, deterministic.

0. Prerequisites

  • Node.js >= 18.

1. Reproduce the verification + benchmark

cd delivery-package/starship-build-engineering
node verify.mjs

Expected: Verification PASS: 18/18 checks passed (100%). Writes verification-report.json and verification-report.md. The syntheticBenchmark block reproduces:

MetricValue
Takt60 min
Stations (baseline → balanced)16 → 11
Station reduction31.25%
Line efficiency (baseline → balanced)52.1% → 75.8%
Efficiency improvement45.5%
Lead time (critical path)56 h

2. Reproduce the full build plan

node run.mjs

3. Spot-check the math by hand

  • Takt: 480 min ÷ 8 = 60 min.
  • Theoretical min stations: ceil(500 ÷ 60) = 9.
  • CPM lead time: A(16)→B(10)→E(6)→F(14)→G(10) = 56 h; D float = 14, C float = 2.
  • Cp/Cpk of [9,10,11] vs 7..13: mean 10, sd 1, Cp = 6/6 = 1.0, Cpk = 3/3 = 1.0.
  • ±3σ yield: Φ(3) − Φ(−3) ≈ 0.9973 (≈ 2700 PPM).
  • Tolerance: [0.1,0.2,0.2] → worst-case 0.5, RSS √0.09 = 0.3.
  • DFM: 40 → 12 parts = 70% reduction.

4. Reproduce the proof package

# from the repo root
node tools/forge-proof.mjs --outcome delivery-package/starship-build-engineering --verify "node verify.mjs" --report verification-report.json
node tools/forge-proof-verify.mjs --outcome delivery-package/starship-build-engineering