Mercator projection, the gaps are at equal distance on the globe, just not on the projected map.
On another note: I find it curious how many piaware feeders there are in Germany and the United Kingdom compared to France.
I guess France has all their piaware receivers in Paris 
Germans are more technical. French more… O la la…
Also, yes all the landmass on northern latitudes looks bigger than it actually is.
I’d call that the french FR24 or planefinder more than anything, seems focused on enthusiasts.
(FA seems more focused on alerting air travelers and those picking them up as well as businesses)
Yup! The javascript has to do slightly nasty things to plot those…
Or passed - depending on your point of view.
