During the Cold War the Western Allies built an airlift as answer of the Berlin Blockade to carry supplies to the Berliners. Near 70 years after you could fly from the airbases of the western Germany to Berlin. The flight plans are as precise as possible in the three corridors and in the approaches of the four Berlin airports or hydrobase and western airbases or airports. You can used a lot of airplanes (Avro York, Short Sunderland, C47, C54, etc.). Enjoy your flight.