I just finished my GSP Katana 140. The plane was recovered in Monokote and Ultrakote, as I said earlier the factory covering is unacceptable. The plane is powered by a Saito 180 with a 16*6 prop (three flights), next I am going to try an 18*6. The plane weighs in at 12.5 pounds on my bathroom scale. I downloaded and used the instrument panel from the "Project Extra" from the AMA website. Its about the right size and the price was right (FREE). I can't get the pictures to come out here but they are in the picture gallery (planes). Just do a search under Katana.