Source: https://guthlabs.ai/docs/instruments/wind-speed-unit-force-converter/implementation/

instrument implementation / implementation-contract

# Wind Speed Unit/Force Converter implementation

A source-bound implementation contract for Wind Speed Unit/Force Converter; deployment and executable qualification remain separate.

Status: **VERIFIED_CLEAN**Lifecycle: **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**: t5-176

**Effect**: Computation or source lookup only

## Input and validation requirements

The converter has hazardous behavior at extreme finite inputs because ordinary JavaScript arithmetic overflows converted units to Infinity. Negative signed inputs also expose an unresolved speed-versus-direction convention and produce undefined Beaufort output unless explicitly rejected or converted to an absolute magnitude.

## 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": {
    "wind_speed": 0,
    "unit": "m/s"
  },
  "expected_outputs": {
    "knots": 0,
    "mph": 0,
    "km/h": 0,
    "m/s": 0,
    "beaufort": 0
  },
  "working": "Start with 0 m/s. Knots: 0 / 0.514444 = 0 kt. mph: 0 x 2.236936 = 0 mph. km/h: 0 x 3.6 = 0 km/h. The speed is below 1 kt, so Beaufort = 0."
}
````

## Other records

[01**Overview**](<https://guthlabs.ai/docs/instruments/wind-speed-unit-force-converter/>)[02**Mechanism**](<https://guthlabs.ai/docs/instruments/wind-speed-unit-force-converter/mechanism/>)[04**Qualification**](<https://guthlabs.ai/docs/instruments/wind-speed-unit-force-converter/qualification/>)

## Sources and evidence

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

- `VERIFIED_LEDGER.json`

- `evidence-tranche5/tranche5-results.json`