Mike

thanks for scanning and posting that , aircraft types like that, its the very reason the engineer is the busiest member on board always adjusting and twiddling, it a good show with the how the airflow is affected , when they break, the cowl flaps, 'boy your in trouble', the B-29/50/377 was one of the first high aspect ratio wings, least the Boeing design was more technical and supercritical , soon as those cowl flap were in the wrong setting its a bit like today spoilers.