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-   -   Fog - the great leveller (https://www.pprune.org/pacific-general-aviation-questions/544061-fog-great-leveller.html)

Rate1 23rd Jul 2014 10:39

Hey Budgie what type are you flying.

PLovett 23rd Jul 2014 11:29


10 minutes earlier there Lovett and 17 wouldn't have been an option either!
I know. I had just received the ATIS and was preparing for a hold when centre came through with the news that it was clearing from the north. Much feelings of relief but even then it took me ages to get visual on YMEN. The fog really changed my perception of what I needed to look for.

Just N Cider 24th Jul 2014 01:36


ML RWY 27 is available for LVTO to appropriately trained crews. Minimum 125 metres visibility. RWY 16 also 125 metres or 100 metres LOC guided takeoff.

550 metres applies to CAT I landing provided the TDZ transmissometer is serviceable.
Thanks for that -- however when the MID Point RVR is U/S, how can the crews takeoff? My understanding is that the START and MID Point RVR is required for take off as a minimum when below 550 RVR?

There were still departures from 27 the other night when the MID Point RVR was U/S for a period of time

shortshortz 24th Jul 2014 01:58

I think you'll find it's Touch Down Zone and Mid OR End...
All zones when the fog reduces vis below 200m, which it wasn't Tue night.

KRUSTY 34 24th Jul 2014 07:38

Is that an Aerostar GB? 700p maybe?

sms777 24th Jul 2014 10:54

I would say it's a 601P Aerostar.....;)

KRUSTY 34 24th Jul 2014 12:26

I certainly stand to be corrected SMS, but the intercooler intake below the cowl could suggest a 700P, although I think there are some 600's around with the bigger engine mod? In fact I'm not sure there are that many (if any) genuine 700P's in OZ at all.

Sorry 'bout the thread-drift, just curious that's all. :)

gassed budgie 24th Jul 2014 12:50


Hey Budgie what type are you flying
Started life as a 602P when Piper pushed it out through the factory door. Now a 700, sporting 350hp a side.

Krusty, I think there might one genuine factory 700P still around out here. Saw it advertised for sale around 12 months ago.

404 Titan 24th Jul 2014 14:34

Just N Cider

Our company minimum RVR for Take Off Melbourne RWY 16 & 27 is 150m with all three RVR zones reported and HREDL & RCLL & RCL. If the MID or STOP END RVR is US minimum RVR is 200m.

Pinky the pilot 25th Jul 2014 09:46

Slight thread drift if I may;

Just relaxing in the Cu Lodge here in Takikawa with a glass of red before heading out for a feed. Glider towing today was interesting to say the least with the thickest haze from humidity I have ever seen!:eek:

The max temp for the day was around 29C with very light and variable winds and seeing that this time of year is the tail end of the rainy season, quite often we see very hazy days.

As the day progressed the wind speed dropped and the haze progressively thickened.

All the launches I flew today were to 1500' agl except for the last one. The last launch was the club's Fox Glider (Fully aerobatic)and supposed to be to 3100' agl for an aerobatic practice.

Passing through 2100' I noticed that the haze was so bad that horizontal visibility would have been less than 4000M and the vertical vis was worse! (Can someone explain that?:confused:) And at 2500' the Fox pilot called the excercise off and asked me to take him directly overhead the field.

After he released I turned away and to my surprise found myself effectively IMC for about 15 seconds!:eek: Thankfully the towplane, a Robin R400 has a standard panel (AH, DG etc)

It almost seemed like fog! An education, to say the least.

sleeve of wizard 25th Jul 2014 11:51

Take-off minima are generally expressed as VIS or RVR Limits. Where there is a specific need to see and avoid obstacles, a ceiling, or climb gradient will be specified.
a) According to the information available to the Commander, the weather at the aerodrome and the condition of the intended runway to be used should not prevent a safe takeoff and departure.
b) Take-off shall not be commenced unless weather conditions at the airport of departure are equal to or better than applicable minima for landing at that airport, unless a suitable take-off alternate aerodrome is available.
c) When the reported visibility VIS is below that required for take-off and RVR is not reported, a take-off may only be commenced if the commander can determine that the RVR/VIS along the take-off runway is equal to or better than the required minimum.
d) When no report of VIS or RVR is available, a take-off may only be commenced if the commander can determine that the RVR/VIS along the take-off runway is equal to or better than the required minima.

KRUSTY 34 25th Jul 2014 13:08

Thanks GB.

Noice!


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