Wind Chill implementation

A source-bound implementation contract for Wind Chill; deployment and executable qualification remain separate.

Status: VERIFIED_CLEANLifecycle: implementation-contract

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: t4-278
Effect: Computation or source lookup only

Input and validation requirements

The instrument needs explicit rejection for negative wind speeds because the plain-JavaScript power operation returns NaN. It also needs boundary enforcement and clear temperature-unit handling; otherwise out-of-range or ambiguously interpreted inputs can produce misleading results.

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": {
    "air_temperature_F": 30,
    "wind_speed_mph": 10
  },
  "expected_outputs": {
    "wind_chill_F": 21.25
  },
  "working": "V^0.16 = 10^0.16 = 1.44543977. 35.74 + 0.6215×30 = 35.74 + 18.645 = 54.385. -35.75×1.44543977 = -51.67447180. 0.4275×30×1.44543977 = 12.825×1.44543977 = 18.53776506. WC = 54.385 - 51.67447180 + 18.53776506 = 21.24829326 °F, which rounds to 21.25 °F."
}

Other records

01Overview 02Mechanism 04Qualification

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