Orbital Inclination Plane-Change Δv implementation

Binding contract

This record describes what an executable surface must bind and validate. It does not claim that a public calculator, package, or production route is deployed.

Record owner

Guth Instruments

Lifecycle

verified-clean

Evidence ID

t4-245

Effect

Computation or source lookup only

Input and validation requirements

The extreme-magnitude vector can produce JavaScript Infinity because the intermediate multiplication 2·v overflows, even though the mathematically reordered result is finite. The branch vector also exposes that an inclination change above π needs explicit rejection or normalization, which is not specified.

Required corrections

No binding erratum is attached to this unique-name record. Implementers must still preserve the declared units, domain, and failure behavior.

Inspectable interface fixture

The sample below is evidence for interface and validation tests, not a production implementation.

{
  "inputs": {
    "orbital_velocity_km_s": 7.8,
    "inclination_change_deg": 60
  },
  "expected_outputs": {
    "delta_v_km_s": 7.8
  },
  "working": "Convert angle: 60° × π/180 = π/3 rad. Half-angle: (π/3)/2 = π/6. sin(π/6) = 0.5. Δv = 2 × 7.8 km/s × 0.5 = 7.8 km/s."
}

Other records

Sources and evidence

These pointers bind the page to evidence. They do not grant authority or collapse verification into deployment.

• VERIFIED_LEDGER.json
• evidence-tranche4/tranche4-results.json