There are conflicting stories on D-ICDS. One is it crashed in 1985 and was not repaired. The registration was transferred to the second prototype (CD-2 c/n 1001). Another says it was rebuilt as more representative of the production aircraft. In that scenario, the second prototype (CD-2 c/n 02) was slightly larger and registered D-ICKS. Another source says the aircraft at Paris was the CD-1A c/n 01. That is what has been used here. D-ICDS at Paris 1987 had the shorter fuselage and round windows of the first prototype (CD-1) but the wing and pontoon design of the CD-2.