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Hi there!

First of all I'm just an enthusiast model aircraft builder/flyer, environmentalist, life-long hiker.
Among many other maps and charts, aviation charts pose an interest for me as an R/C aircraft flyer and environmentalist.
But as in all fields, the maps provided by skyvector contain many acronyms. But which I cannot find explained anywhere...

Maybe someone could explain what "LRD-x" or "LRR-x" areas are. Par example in the N45°31.79' E25°13.22' area.
There is a "LRR-5" around a natural reservation. It cannot be a Long Range Radar as I know that mountain well and there is little to no infrastructure. Two cabins, a few shelters and much wilderness.
There is, a little to the west of that, a "LRD-43" square area at a higher mountainous area, close to the only cabin in that mountain. There are no special zones there, military, research or reservation. At least as far as I know.

I know where most military bases are and they are not highlighted by any markings on the map...

There are much more important reservations in these mountains that have no marked areas, thinking that the marked areas inform about aircraft restrictions.
I can easily see the navigation radio beacon near my town, BRV123, and the local airport inside the LRD-108 circular area.
I couldn't find any legend on the site and no forum topic about that. Googling for these acronyms result unrelated topics...

So, LRR and LRD? :)

Thanks for reading! Even more if answering! :)

They sorta correllate with

They sorta correllate with the US charts as Restricted areas or some sort of military operations area. The number beside it would be the identifier if you wanted to look up the hours of operation or what goes on there.  You would need to find the sectional chart for that area and there should be a table with them listed.




WSMC31 GMMC 211921 GMMM SIGMET 06 VALID 211920/212320 GMMC- GMMM CASABLANCA FIR EMBD TS OBS WI N3449 W00941 - N3409 W10524 - N33 26 W00530 - N3255 W00928 - N3104 W01113 - N3245 W01302 - N3413 W0114 8 TOP FL320 STNR NC=


PLEASE CORRECT  N3409 W10524 TO  N3409 W00524

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