All weather operation table 6-1
Hi, there
Let me ask you something.
According to ICAO doc 9365 Table 6-1 take-off minima
Facilities
RVR/VIS
Runway edge lights, runway centre line lights, centre line markings,
and TDZ, MID and stop-end RVR
175m
Runway edge lights and either centre line lights or centre line markings
500m
"Runway edge lights and either centre line lights or centre line markings = 500m"
Is 500m RVR or VIS? If 500m is RVR, is it TDZ RVR?
and second question is.....
I'll give you 3 scenarios.
our airport has full facilities with 3 RVRs. and take-off minima is 150m
TDZ MID Roll-out
1) 500, 150, 100
2) 500, 100, 100
3) 150, 100, 100 but VIS is observed 500m
Does local air traffic controller issue take-off clearence above each occasion?
and could you give me a related basis or regulation?
I'm confused these days. please help me....