Do take extra care when fitting the rear decking it has a tendency to bow out of shape. The fuselage builds into a very strong structure that in my view is a little over engineered. The wings are of the built up variety and actually build up very quickly. You end up with a very light and strong traditional D box structure. The top wing is held to the cabane with nuts and bolts and the inner plane struts are a push fit into the wings.
Plastic bolts hold on the bottom wing.
The balsa bashing complete, it's on to the covering. To help keep the weight down, Solarfilm was my preferred choice of covering. Four meters of film is enough to cover the Ultimate. White was used as the base color with red, orange, yellow and black trim used for decoration. A solution of water and washing up liquid was sprayed onto the film and the pre-cut trim floated into place and was left to dry.