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No, normally we need at least 550m RVR (runway visual range) for a Cat I instrument approach. You need to see the runway (or lights) to be allowed to descend be
by t0mas88 7y ago
No, normally we need at least 550m RVR (runway visual range) for a Cat I instrument approach. You need to see the runway (or lights) to be allowed to descend below 200ft and land, if you don't see it at that point you abort the landing.
The visibility can be lower with special procedures, extra training, and things like a HUD. But it will not go down to zero.
To land in zero visibility you need "autoland" which requires an aircraft certified to do that (multiple autopilot computers etc), crew certified and current (having done it recently) and special procedures at the airport. In that case the autopilot will control the aircraft all the way to rollout.
- sails 7y agoIf they couldn't get the bugs off the screen, what might they have done?
- cjrp 7y agoCheck the weather radar for the nearest rainstorm
- t0mas88 7y agoFind a very long runway, fly an LPV or ILS approach. When the radar altimeter is around 20 or 30ft depending on the size of the plane, reduce power and keep the nose up. Fly it into the runway at a 100ft/min descend rate. This is roughly what we learned as a contingency in a small plane when you had a night landing without lights. You need the long runway because it takes some time to get down so you're going to waste some length trying to touch down gently.
- sails 7y agoThat sounds very tense. Hate to do that on a passenger plane where you aren't likely to find a runway longer than your destination anyway.