Berlin Tegel Airport eminent aerospace engineers, which included German rocket pioneer Wernher von Braun. In 1937, the rocket pioneers left Tegel in favour of the secret Peenemünde army research centre. During World War II, the area served once again as a military training area, mostly for Flak troops. It was destroyed in Allied air raids. Plans for converting the area into allotment gardens were shelved due to the Berlin Blockade, which began on 24 June 1948. In the ensuing US-led Berlin Airlift, it quickly turned out that Berlin's existing main airport at Tempelhof was not big enough to accommodate all relief aircraft. As
Berlin Tegel Airport a Boeing 747-400 but features no jet bridges. Terminal D was opened in 2001 and is a converted car park. It features 22 check-in counters (D70–D91), with one bus-boarding gate and two walk-boarding gates. Most passengers of airlines operating smaller aircraft (like Embraer 190s for example) are brought to the remote aircraft stands by bus from here. Terminal D is the only part of the airport that remains open all night long. The lower level arrival area is called Terminal E (Gates E16-E18). Tegel Airport was originally planned to have a second hexagonal terminal like the main building right next