Iowa State University' entry in USLI: Our payload is a Controlled Descent Vehicle (CDV), which was designed to guide itself back to a select point on the field using a sailboat servo to tug on the parachute shroud lines, in the style of a skydiver. The payload was guided by a Trimble GPS. The launch vehicle was powered by a K1100T. The rocket reached an altitude of 3251 feet, and recovered successfully. The payload failed to deploy at the pre-set 2500 foot mark, but deployed at 700 feet with the main parachute. The payload recovered in the right direction but did not have enough altitude to make it back to the target landing zone. It is difficult to determine the success of the design. It was awesome.