Learning curve 3: while fitting the inwale and gunwale it became clear that there was a small tendency for the glass to delaminate from the soft balsa.. Rare model from 1940. one in a line of accurate and detailed kits promoted by world-famous ship modeler gordon grant. features beautiful, fully carved hardwood hull. From the 1960s. one of a very popular 16.5 inch wingspan series of world war 2 stick and tissue flying kits. includes die cut balsa parts, vacuform nose, wheels.