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
Billy Bishop Toronto City Airport drew criticism from TPA critics such as Adam Vaughan, charging "the port authority is putting together a "feel-good story" to prevent people from asking tough questions about how the island airport is governed." On November 10, 2009, after approval from Transport Canada, the TPA officially renamed the airport to "Billy Bishop Toronto City Airport". It is the second airport in Canada, after Owen Sound Billy Bishop Regional Airport, to be named for Bishop. The airport continued to be listed in aeronautical publications and weather reports as Toronto City Centre Airport, until February 11, 2010. In the September 17, 2009, "La