Delivered pre-war to the CAA. Served with the USAAC as a C-52D before being returned to the CAA in 1945. Operated throughout Alaska on transport and calibration work until 1951. Later became N560R. "King Chris" was named after Chris Lample, the CAA administrator of Alaska airports. Photo from: National Archives at College Park, Maryland

'On May 24, 1946, the CAA publicly demonstrated the world's first radar-equipped control tower for civilian flying at the Indianapolis airport.' Retired to the Smithsonian museum in 1953, this Boeing 247 had taken part in the London - Melbourne race in 1934 as NR257Y. Photo from: Federal Aviation Administration

Indianapolis was home to the Experimental Station of the CAA, which became the FAA in this year, 1958. BuNo 99854 was apparently on loan from the US Navy. Later used by US Department of Agriculture as N32A. To Confederate Air Force in 1980 as N227GB. Photo from: Federal Aviation Administration