Dornier Do Delphin I and II = Dornier L 1 and L 2
Do Cs II modell
Do Delphin II  landing
Type WerkNr. Registration History
Cs II, Delphin I, Do L Bas 21 A-6055 Built in 1920 at Seemoos and Rohrschach. First flight 24/11 1920 (Pilot Lesch).  Modified with a longer bow after a landing mishap, named Delphin I after this change. Sold to the US Navy in 1921
Delphin I 25   Built in 1921 at Seemoos. Modified with an even longer bow. Sold to Fa. Kawasaki Dockyard Co. Ltd., Kobe/Japan. Delivered with 1 Rolls-Royce Eagle
Delphin I 26   Built in 1921 - 24 at Marina di Pisa, Italy. Tested with an Isotto Fraschini A 10
Delphin I, Delphin II 27   Built in 1921 - 24 at Marina di Pisa, Italy. Delivered back to Seemoos, equipped with 1 Rolls-Royce Falcon as a Delphin II (New WerkNr. 110 ? ).First flight 15/2 1924. Used by the Bodensee Aero Lloyd. Crashed at Lindau (Pilot Stroebel)
Delphin II 28 D-401 Built at Seemoos in 1922. Crashed on a testflight (Pilot Aland)
Delphin II 42 D-277 "Konstanz. Built at Seemoos in 1923.Deutsche Aero Lloyd tried  it on the route Stettin - Copenhagen late summer 1924.Used by the Bodensee Aero Lloyd from 22/7 1925.  To L.V. GmbH at Lindau in May 1930. Withdrawn from service in the end of 1932
Delphin II 43 D-791 Built in 1923 at Seemoos. Delivered to the Air Ministry , UK,  in 1925
Delphin II 44 D-702 "Lindau". Built at Manzell in 1923. Used by the Bodensee Aero Lloyd. Crashed 5/6 1929 during landing at Lindau, 3 passengers  wounded.

 

Type Do Cs II 1 + 5 passenger carrying flying boat Do Delphin I 2+ 6 passenger carrying flying boat Do Delphin I 2 + 6 passenger carrying flying boat Do Delphin II 2 + 6 passenger carrying flying boat
Engine 1 BMW IIIa 1 BMW IIIa 1 Isotto Fraschini A 10 1 Rolls-Royce Falcon III
Dimensions Length 10.25 m, height 2.75 m, span 17.00 m, wing area 47.00 m2 Length 11.50 m, height 3.10 m, span 17.10 m, wing area 51.30 m2, cabin: length 2.65 m - height 1.60 m - width 1.25 m
Weights Empty 1350 kg, load 650 kg, flying weight 2000 kg Empty 1600 kg, load 600, fuel 200 kg,oil 15 kg kg, flying weight 2200 kg   Empty 1700 kg, load 850 kg, fuel 200 kg, oil 15 kg,  flying weight 2525 kg
Performance Max. speed 150 km/h, cruising speed 120 km/h, service ceiling 4000 m, range 450 km Max. speed 125km/h, cruising speed 110 km/h, service ceiling 4000 m, range 660 km   Max. speed 135 km/h, cruising speed 120 km/h, service ceiling 3000 m, range 450 km