If you run a model train layout or hold radio controlled aircraft meetings you may want to check out some software I wrote to display the mechanical signs one can see at large railway stations and airports at
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I use it on my train layout to display my arrivals and departures dynamically - see
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I imagine that if you were running a flying day one could also set up a display to indicate who is flying what and when and on what channel..._D_a_l_e___S_c_h_u_l_t_z_