There was also a proposal in 1941 to use the MiG-3 as part of a Zveno combination with a Petlyakov Pe-8 mother ship. The four-engined bomber would carry two MiG-3SPB ("Skorostnoy Pikeeruyushchiy Bombardirovshchik"—Fast Dive Bomber) fighters, modified to carry a FAB-250 bomb under each wing, close to the target and would then release them to conduct the attack after which they would fly back to the nearest friendly airbase. Some preliminary work was done before the Germans invaded, but it was abandoned afterwards due to the pressure of other work. The combination was estimated to have a maximum speed of and a range of .