A delivery system for endovascularly delivering a prosthesis along a guidewire to a curved implantation site includes a delivery device having control handle and an inner lumen slidably disposed in the handle between a retracted position and an extended position. The inner lumen has a distal end and a tip at the distal end of the inner lumen. An intermediate lumen is slidably disposed about the inner lumen and has a distal end. A relatively flexible prosthesis sheath is connected to the distal end of the intermediate lumen and a relatively stiff outer lumen is axially fixedly connected to the handle about the intermediate lumen. The outer lumen has a length only long enough to be inserted in a patient's aorta no further than the patient's celiac axis.
