and well served by the Twin Otters; had an airport needed a larger plane to serve its customer base, they would have built a longer runway. One exception to this was operations at London City Airport (LCY), which upon opening in 1987, was capable of handling few other aircraft types besides the Dash 7 due to its relatively short runway and steep approach. The runway at LCY was subsequently lengthened, and the approach angle reduced somewhat and since accepts airliners such as the Airbus A220, Airbus A318, British Aerospace BAe 146 and Embraer 190 types. Noise criteria remain strict in comparison with other international airports. The Dash 7 also gained a number of military orders. The first of these was for two aircraft for the Canadian Armed Forces, which needed them to transport high-ranking passengers and freight around Europe. These aircraft received the CF designation CC-132 and were delivered to 412 Transport Squadron at Canadian Forces Base Lahr, in West Germany. The United States Army operates several Dash 7 aircraft as surveillance platforms with the designation EO-5C (RC-7B before 2004) under the Airborne Reconnaissance Low program. Transport Canada operates a single DHC-7-150IR aircraft to conduct maritime surveillance, pollution monitoring, and ice patrols as part of the Transport Canada National Aerial Surveillance Program. The aircraft's home base is Ottawa, Ontario. During the summer, this aircraft conducts patrols throughout the Canadian Arctic, Alaska, and Greenland. During the fall and winter, this aircraft conducts patrols of the Great Lakes and east or west coasts of Canada as required. The design of a much more "conventional" twin-engine design commenced at de Havilland in 1978, resulting in the extremely popular Dash 8. The DHC-7 production line eventually delivered 113, of which six have been lost and one scrapped. Many of the rest remain in service. The American band Wilco released a song called "Dash 7" on their 1995 album A.M. Variants DHC-7-1 Prototypes, two built DHC-7-100 Production passenger variant with a maximum of 54 passengers (with takeoff weight) DHC-7-101 Production passenger/cargo variant with a maximum 50 passengers and a left-hand forward cargo door (with takeoff weight) Production passenger variant with a maximum of 54 passengers (with take-off weight) Production passenger/cargo variant with a maximum of 50 passengers and a left-hand forward cargo door (with take-off weight) DHC-7-110 DHC-7-102 certified for use in the United Kingdom DHC-7-111 DHC-7-103 certified for use in the United Kingdom DHC-7-150