If your takeoff minimums are RVR 32, but RVR is notamed OTS, what visibility is to be used?

In this scenario, if the takeoff minimums are specified as an RVR of 32, it indicates that the minimum runway visibility requirement for takeoff is crucial. When RVR is not available, such as when it is noted as Out of Service (OTS), the regulation allows for an alternative visibility measurement to be used.

When RVR is not available, the FAA mandates that the pilot or dispatcher must use the corresponding ground visibility equivalent. For an RVR of 32 (or 3,200 feet), the standard conversion to statute miles is approximately 5/8 statute miles. This conversion is based on the standard guidance provided in the FAA regulations and is designed to ensure that adequate visibility is maintained, thus enhancing safety during takeoff operations.

Therefore, when RVR is out of service, utilizing 5/8 SM as the visibility makes it the correct choice in this scenario, allowing for a safe decision based on the minimum operational requirements.