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First of all, congratulations for the excellent work!
As a german who subscribed for the DFS-plates, I am beginning to change my mind and I will not renew my subscription for the following reasons: -for most of the airports, the traffic pattern is self-explanatory: 1000ft agl (800ft if there is controlled airspace above), size to allow 3deg angle path from mid-downwind, avoid villages. That's it. -only left or right hand circuit preference has to be determined. For this, the pattern scheme visible at scales<250000 is perfectly well suited.
-other informations (fuel, open to aircraft, ultra-/microlight, ppr) ar crucial, but are not shown on the plate. They can be found at airports/all documents/paid docs, dfs/list of aerodromes. Hint: send it to you or anybody else by mail, tap on the pdf and choose "import to skydemon" to have it permanently at .../all docs/user docs.
The georeferenced plates have disadvantages: when they offer advantages over the diagram/scheme which SD offers on his map, that is at very large scales near the airport, the redrawing doesn't always keeps up with the changing position, thus it's useless.
I too would suggest to make georeferencing facultatively. But the toggle switch has to be placed prominently at the "airports" tab not to be overlooked.
Some questions concerning an expired subscription: The plates can not be downloaded again, I guess. Do they stay on the device until the cache is cleared? Do they survive an SD update? What happens to the traffic pattern diagram/scheme? Do you give these diagrams to non-DFS-subscribers?
Lengthy post, sorry for that - english posts become stilted very easily, lack of language skills.
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