MGGT - Guatemala City (GUA) inquiry
 

So I was reviewing the runway layout at Guatemala city today and was confused about something.

I know all about displaced runway thresholds from FAA/JAA/ICAO literature. However, I have not found ANY mention about yellow arrows used in lieu for white arrows. Clearly this is not a chevron; nor is it a "temporary" threshold displacement.

Anyone have any information or reference as to why this is used? Yellow paint cheaper than white??

On a side note, if you look at the DCA 10-9 Jepp chart, the Clearance frequency shows a (Cpt) 128.25. What does the (Cpt) represent or refer to?

Thanks in advance to those who provide a thoughtful or intelligent response.

I have attached a picture in an attempt to clarify what I'm asking for in GUA but could not find a 10-9 DCA Jepp online.
http://i186.photobucket.com/albums/x...xii/mggt19.jpg

All runway markings at Oslo, Norway were yellow when I was last up there. Yellow may help identification in the snow, but I don't think it snows too much in central America.

A quick Google search says that Clue32 is correct. The arrows are sometimes yellow to provide better contrast in snow. It appears however that the average temperature in Guatemala City is at least 80 degrees Farenheit year round, so I don't see why snow would be an issue.

No, but Guat City has been known to have some really bad haze and smoke problems and the yellow helps when peering through the white smoke.

I flew in to that airport, for 14 years and if it snow in GUA Aurora, than Global warming is here to Stay!!!!

Good question, if I remember correctly is for Jet blast, a main road goes by just at the edge of the runway. The yellow lines helping the pilots land at night through white smoke, I really doubt it. Is VOR app only, and when this runway is in used, you can expected bad weather. The only thing that I remember during the app was the famous red light antenna that is less than 492 feet, papi on the left, slippery runway and the bright edge white lights.

The whole approach is flown on top of the city. Buildings all over, very demanding, but a great excuse to have a drink after the fight.

Dont worry about that anymore....an A-37 dragon fly (Guatemala Airforce)knocked it down 1-2 months ago. Stll, and as most approaches in Central America,....breath taking.

TI-