another ? is how much should the max weight be! from what i've been told this is 12+yrs. old,the fellow who built did a nice job on glassing and blending it all in with the fuse,also it looks like he used real thin ply for sheeting on the wings,they're solid as a rock!! other then a little hangar rash cosmeticaly everything looks to be in good shape,heres pics of fan unit and os.77,this is a dynamax? am i correct,lmk,john