Good luck:I know there was one hopefully that is it I thought was MAN but maybe RCM.I believe it was July 1975 issue.DOn't have the info here.Nice plane approx 60" foam wings built up fueslage.Weight was about 12 Lbs they had some problem as at that time were using a Merc 60? size engine in a 12 Lb Bipe. IF it is that one think you would be happy with it,but maybe try to check old MAN plan list too as I said it was back in 1975.