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So, the izd. 20 was intended as a VCE but it never got the variable BPR feature actually working? How true are the values reported in an article above about BPR being variable between 0.2 and 0.4?Ideally the max BPR value for izd. 30 should be a bit higher for optimal subsonic flight and given the engine manages to at least maintain the TSFC of the AL-31F, probably a BPR of at least 0.5 looks realistic in my perfectly ignorant opinion...
So, the izd. 20 was intended as a VCE but it never got the variable BPR feature actually working? How true are the values reported in an article above about BPR being variable between 0.2 and 0.4?
Ideally the max BPR value for izd. 30 should be a bit higher for optimal subsonic flight and given the engine manages to at least maintain the TSFC of the AL-31F, probably a BPR of at least 0.5 looks realistic in my perfectly ignorant opinion...
