T/O mins `121
when an interviewer asks what are 121 t/o mins
is it 2 engines or less 1 sm vis more than 2 engines 1/2 sm vis if weather is less than landing mins at departure airport then a t/o alternate must be filed with the requires mins for alternate distances |
Originally Posted by buffalopilot
when an interviewer asks what are 121 t/o mins
is it 2 engines or less 1 sm vis more than 2 engines 1/2 sm vis if weather is less than landing mins at departure airport then a t/o alternate must be filed with the requires mins for alternate distances |
in general, are these the mins they are asking for
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In general, I'd say probably so.
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T/O alternate mins do not include landing mins. T/O alternate mins, as already stated, are published in each airlines Ops Specs. Most are 600 RVR from what I've heard from freinds at other airlines, some are 500 RVR. The only time the T/O alternate comes into play is when the landing mins at the your departure airport are below landing mins. I guess what I'm trying to say is, 121 T/O mins have nothing to do with landing mins at that airport. T/O mins stand alone. And, you can only do the 600 RVR within certain crieteria, such as having RWY centerline lights.
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500/500/500
Most companies are now authorized for and train/ check for 500 RVR take-off's.
The reason for this is that 500 RVR equals 150 meters. 150 meters is the minimum authorized take-off from foreign airports that measure in meters rather than feet. There are no airports in the US that allow for a take-off less than 600 RVR but we need to be authorized to 500 RVR to be able to to go down to 150 meters. RVR values this low only measure in even numbers such as 400, 600, 800, etc. therefore you will never see 500 RVR except in training or checkrides. BTW: 600 RVR is 175 meters... |
Originally Posted by buffalopilot
when an interviewer asks what are 121 t/o mins
is it 2 engines or less 1 sm vis more than 2 engines 1/2 sm vis if weather is less than landing mins at departure airport then a t/o alternate must be filed with the requires mins for alternate distances |
Originally Posted by Calpilot
There are no airports in the US that allow for a take-off less than 600 RVR but we need to be authorized to 500 RVR to be able to to go down to 150 meters. RVR values this low only measure in even numbers such as 400, 600, 800, etc. therefore you will never see 500 RVR except in training or checkrides.
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Its not 5/5/5 if your ops specs say 6/6/6
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So if the t/o mins on the plate are greater than what the op specs are, you follow the specs right?
say the departure says t/o mins are 800RVR and ops specs say 600RVR which one do you follow? |
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