imported parts for Dai Nihon Koku KK. Manshu, Chuka Koku and agencies such as provincial police headquarters. Military designations YC-43 Three Model D17S with a 450hp R-985-17 engine for evaluation by the United States Army Air Corps UC-43 Traveler Production version with a 450hp R-985-AN-1 engine, 75 ordered for the Army Air Corps and 63 for the United States Navy as the GB-1, 132 were later transferred from the Navy to the Army Air Corps. UC-43A Model D17R with 440hp R-975-11 engine, 13 impressed into service. UC-43B Model D17S with 450hp R-985-17 engine, 13 impressed into service. UC-43C Model F17D with 300hp R-915-1 engine, 37 impressed into service. UC-43D Model E17B with 285hp R-830-1 engine, 31 impressed into service. UC-43E Model C17R with 440hp R-975-11 engine, five impressed into service. UC-43F Model D17A with 350hp R-975-3 engine, one impressed into service. UC-43G Model C17B with 285hp R-830-1 engine, 10 impressed into service. UC-43H Model B17R with 440hp R-975-11 engine, three impressed into service. UC-43J Model C17L with 225hp R-755-1 engine, three impressed into service. UC-43K Model D17W, one impressed into service. This aircraft was originally built in 1937 for famed aviator Jacqueline Cochran. Cochran flew the airplane in the 1937 Bendix cross-country race and placed first in the Women's Division and 3rd overall. She also set a Women's National Speed Record of 203.895 miles per hour using the airplane. GB-1 United States Navy transport version of the D17, ten bought in 1939 and ten impressed into USN service. GB-2 USN version as GB-1 but with a 450hp R-985-50 or R-985-AN-1 engine, 271 built, 132 later transferred to USAAF as UC-43s. Also additional aircraft from a cancelled British contract and impressed aircraft. JB-1 One Model C17R as an executive transport for the United States Navy. Traveller I British designation for the former US Embassy in London's YC-43 and 107 UC-43 and GB-2 aircraft delivered mainly for the Royal Navy. Engine selection Operators Military Numbers operated from Royal Australian Air Force (operated three from 1941 to 1947) Bolivian Air Force (received one in 1941) NAB – Navegação Aérea Brasileira (airline) Brazilian Air Force (operated 54 from 1942 to 1960) Brazilian Navy (operated four from 1940 to 1941) Chinese Nationalist Air Force (operated 21 from 1937 to 1945) Republic of China-Nanjing Nanjing air force (operated one from 1941 to 1945) Cuban Army Aviation Corps (operated two in 1945 and 1958) Ethiopian Government (operated