really very important for phase 2 or phase 3:
In north of germany two airfields:
1) Eggebek - https://de.wikipedia.org/wiki/Fliegerhorst_Eggebek - 54.621764097899394, 9.345836112701413
2) Schleswig Jagel - https://de.wikipedia.org/wiki/Fliegerhorst_Schleswig - 54.457257572029825, 9.513130835817094
In the near of these two airfields these landmarks should be included:
1) Radio Tower - https://de.wikipedia.org/wiki/Fernmeldeturm_Freienwill - 54.739307814721414, 9.507684501553191
2) Radio Tower - https://de.wikipedia.org/wiki/Sender_Flensburg - 54.79184235666288, 9.503449252771263
3) residential tower - https://de.wikipedia.org/wiki/Wikingturm - 54.507896943272286, 9.549769811578537
