 Stalin convened a meeting on 29 November 1946 to settle the future policy on jet fighters for the VVS and PVO . The Mikoyan @-@ Gurevich MiG @-@ 9 was selected as the primary fighter with the Yakovlev Yak @-@ 15 relegated to conversion training and familiarization . The imminent availability of British jet engines and access to German jet technology and engineers meant that there was no longer any need for mixed @-@ power aircraft , but Stalin insisted that the I @-@ 250 finish its trials and that the tooling and drawings should be retained along with <unk> parts even though the program was cancelled . 
