From Encyclopedia & World Directory
11C - brief summary
11C, 11-C or 11.C may refer to:
New York State Route 11C
GCR Class 11C, a class of British 4-4-0 steam locomotive
11C, a U.S. Army MOS for a mortarman
The clockwise bus service on West Midlands bus route 11
Carbon-11 (11C), an isotope of carbon.