Carl Goldberg did a great job designing this rubber powered sport free flight model. This model is a hybrid with features of the sheet balsa models of the time, with tissue covered built up structure. The fuselage is assembled from laser cut parts much like a jigsaw puzzle, that then gets tissue covered. This is a great model to introduce modelers to the world of a tissue covered built up structure. And it flies Great. 28" spam with 102 sq. in area. Kit is complete with Japanese tissue, prop and rubber motor.