I was standing on my deck in Norwalk Iowa at aprox. 9:00am having a cigarette when a saw a comercial jet on final approach to the airport which was aprox. 10 miles out from the southeast. There appeared to be another craft on the same approach pattern but was slightly above and to the right. The comercial plane was black and brown, possibly Fedx. The other craft was orange in color and was oddly shaped, similar in shape to a surfboard. There were no wings or a typical tail section. As both aircraft came closer to the airport the Orange craft began to turn east. It listed on its side somewhat as it turned showing the underbelly. There were no propulsion units like jet engines visible. The craft made a 90 deg. turn in a short amount of time and distance then a comercial jet could make then it began to assend the way a standard aircraft would, then dissapered into a bank of clouds. As I stated, the shape was like a surfboard with rounded edges and a rounded nose. The rear of the craft was not rounded but straight. This craft was slightly larger than the comercial jet.