01. The Geometry
The six-point star is not a suggestion. It is the only topology that distributes compressive stress evenly across the flange.
| Point | Opposite | Angular Offset |
|---|---|---|
| 1 | 4 | 180° |
| 2 | 5 | 180° |
| 3 | 6 | 180° |
Source: NASA Structural Integrity Handbook Q905795
02. The Sequence
Three passes. Star pattern. Click on target.
| Pass | Target | Variance |
|---|---|---|
| 1 | 30% | ±5% |
| 2 | 70% | ±3% |
| 3 | 100% | ±1% |
1→4 2→5 3→6
Grounded in Antonio-Tircuit field report: 140 ft-lbs, µ=0.15
03. The Constants
| Parameter | Value | Tolerance |
|---|---|---|
| Proof Load | 133 ksi | -0/+2% |
| Friction Coeff. | 0.15 | ±0.02 |
| Target Torque | 140 ft-lbs | ±1.4 |
| Bolt Diameter | 1.0" | ±0.001" |
04. Failure Modes
- ◼ SKIP: Variance exceeds 5% on Pass 2 → Strip imminent
- ◼ DRIFT: Sequential error > 0.5 sec → Flange bow detected
- ◼ WEAK CLICK: Audible click < 98% target → Re-seat required
Every slip is a scar. We catch it before it bleeds.