ENGCRS["Heathrow Airport Grid",EDATUM["Heathrow Airport Grid"],CS[Cartesian,2],AXIS["(E)",east,ORDER[1],LENGTHUNIT["metre",1]],AXIS["(N)",north,ORDER[2],LENGTHUNIT["metre",1]],USAGE[SCOPE["Engineering survey, topographic mapping."],AREA["UK - Heathrow airport and surrounding area."],BBOX[51.42,-0.56,51.52,-0.37]],ID["EPSG",11378]]