If you conducting a Cat IIIA approach to 50'/200m minima, what's the minimum RVR you require for the mid point and stop end?
Let's assume everything is working, such as roll out guidance etc
Under EU OPS, if the aircraft has rollout guidance and redundancy is provided then MID, ROLL OUT RVR can be as low as 75 m. Without Rollout guidance and redundancy given RVR MID has to be 125 for the manual rollout.
reference EU OPS commencement and continuation of approach.
The touchdown zone RVR is always controlling. If reported and relevant, the mid-point and stop-end RVR are also controlling. The minimum RVR for the mid-point is 125m or the RVR required for the touchdown zone if less. The minimum RVR for the stop-end is 75m. For aircraft equipped with a roll-out guidance or control system, the minimum RVR value for the mid-point is 75m.
Table 14 CAT III OPS depicts required RVR dependable on type of approach and rollout guidance system installed. All straight forward.
