Hi Allocator
I have been play with wildcards like 43C* but because things are running so slow it is difficult to see the results. Until I saw the comment above, by Besty8 I did not realize, Filter - Show all - ADS only, excisted. Now I can switch filters of without re booting. OK 43C* works - Thank for that. My on going concern is about slow operation and hanging up. So when I saw UK Navy as an option that I do not have I again wondered about my system. I am now at 6500 aircaft again but I am not sure that is my poblem as deleting them does not fix it. Re loading does - for a while. Re loading causes mem usage to be in the order 40000K. Over time this increases to 140000 to 155000k and things get very slow. Thanks again for the help so far.