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Old 29th Feb 2004, 04:07
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Gomer Pylot
 
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The current Cat I ILS permits this in practicality. All you need is to see the approach lights, and you can continue to 100' above the TDZ, and you can initiate the approach with 1/4 mile visibility. I've flown a number of ILS approaches with the official weather being 100'/.25 miles, and I've never made a missed approach under those conditions. With 1/4 mile vis, you should almost always see the approach lights at 200', and from 100' you should see the runway lights. This is especially true at night. In short, the effective minimums for an unaided, hand-flown approach are 100'/.25 miles, not what is published on the chart.
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