Nice photo of your helicopter next to the tower back when. Now use tower in relationship to perimeter. Put all the pieces together, like a puzzle. Type in Tahkli RTAFB on web, look thru the photos. Most important on your claim, evidence, evidence, evidence. I was approved at Udorn using maps, photos found on the internet. I wrote a 6 page claim. They don't care about the barracks, the VA manual M21-1MR manual clearly states " work duties performed on or near the perimeter. Also be sure to mention army manual on herbicide distances. You may want to type in " VA appeal cititions " on web, type in tahkli and you can see which appeals were won/ loss and why. Gives you a little direction.