Baade 152
The Baade 152's basic configuration shares many similarities , including shape , size , wing-area , landing gear configuration , empty weight , range , altitude , speed , power per engine , and double-engine cowling arrangement with the American-built Boeing B-47 Stratojet , a bomber/aerial reconnaissance aircraft which entered service with the United States Air Force during 1951 . 
<triplet> Boeing B-47 Stratojet <subj> American <obj> country of origin