Bearmech, I bought my cub last fall. It is the 81' wing ARF. I don't have the manual handy right now or I would look on it for date info and page # etc. Will look it up later and let you know.been flying mine for about a month now . Flies great. Only flaw so far is the hinge material on the struts I have had to to repair 3 of the hinges so far as they start to seperate. Gonna try a differant hinge material if it continues. Mine is powered with a saito 65 with a 13x6 prop.

Jim