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translation - babelfish will give you the gist if you want to read the rest, or reply in this thread and I'll translate the rest.
Aircraft "Boldyrev" with oscillating slats
This was the experimental aircraft (Fig. 278), based on the completely new principle of obtaining thrust and increased lift coefficient. The slat, installed in front of and higher than the wing leading edge, is driven by rapid oscillation. It turns around its leading edge by angles of the order of plus-orminus 15 degrees. It was tested on the flying models and during the static tests of full-scale aircraft.