Hi, I recently returned from a vacation in the Channel Islands. Specifically, we went to Alderney. Alderney is a island about 3 1/2 miles long by 1 1/2 miles wide. I contacted the local ATC center and got permission to fly with all the usual cautions. Great! So off to the coast to get my footage. I went to take off, nothing. It wouldn't let me take off because of the Geo System. I didn't know what it was telling me, so back to the hotel and a bunch of digging around I finally figured out that I needed to disable this before I flew. My question is, why have it in the first place? 99%+ of the time I know where I am flying and have permission before I fly. Especially in foreign countries I ask permission first even if I don't need it. Can anyone tell me what benefit the geo system give me other than being pain in the butt? Thanks ... Ed BTW, here's a link to the resultant vids.