Okay, inverted engine seems to indicate 4-stroke. I keep coming back to that same conclusion but hate to have to spend the extra money $120.00, there goes my $95 budget for full set of drawings.

On another note, it looks like lowering the top wing about 3/4 to1 inch will improve the silhouette, any lower and it is too close to the fuselage. (Maybe this "fun scale" is off in the fuselage department as well.)

Thanks for the info, now back to wing panels. I have included a picture with the mounting brackets and a picture from the manual showing how2 ribs are used to sandwich an inner rib with cutouts for the aluminum brackets. The inner rib R4-T or R4-B is the only difference in the top and bottom wing panel, nice easy design. See how fun it is to do the same 43 steps 4 times each !!!