Hopes for large orders were dashed when the US Army was forced to transfer all heavy fixed-wing aircraft to the US Air Force, which had no interest in the aircraft; 122 were built in two production runs, including a handful of Buffalo aircraft for the US Army and four C-8 transports for the USAF. When no further orders resulted from the US Army evaluation of the DHC-5 (designated originally YAC-2 by the US Army, and later C-8A), the Canadian Armed Forces acquired 15 of the DHC-5A (designated CC-115); six were converted subsequently for deployment in a maritime patrol role.