Type 3-seated flying boat for reconnaissance (E/1) 3-seated flying boat for reconnaissance (E/2)3-seated flying boat for reconnaissance
Engine 1 Rolls-Royce Eagle IX 1 Gnôme-Rhône Jupiter VI 1 BMW VI 5,5
Dimensions Length 12.45 m, height 4.75 m, span 17.1 m, wing area 51.3 m2 Length 12.86 m, height 4.75 m, span 17.6 m, wing area 52.9 m2 Length 12.45 m, height 4.75 m, span 17.1 m, wing area 51.3 m2
Weights Empty 1925 kg, flying weight 2600 kg Empty 1925 kg, flying weight 2600 kg Empty 1950 kg, flying weight 2600 kg
Performance Max. speed 162 km/h at sea level, cruising speed 140 km/h, climb to 1000 m 10 min., to 3000 m 40 min., range 600 km, service ceiling 3600 m Max. speed 174 km/h at sea level, cruising speed 145 km/h,  range 600 km, service ceiling 4000 m Max. speed 190 km/h at sea level, cruising speed 160 km/h, landing speed 100 km/h
Type Werk.Nr Registration History
E/1 = E I 58 Rolls-Royce Eagle IX. To Japan
E/1 = E I 59 Rolls-Royce Eagle IX. To Chile
E/2 = E II 72 D-932 Took part in the Seeflugzeug-Wettbewerb 1926 with Jupiter engine, engine damaged by water spray. The aircraft had to be withdrawn
E/2 = E II 73 D-933 Took part in the Seeflugzeug-Wettbewerb 1926 with Jupiter engine, engine damaged by water spray. The aircraft had to be withdrawn
Construction work started but was not finished
One was tested in 1924 by the Swiss company Ad Astra (CH 127) from 24/9 - 31/12 1924  c/n either 58 or 59
Conceptually the Do E was very similar to the successful Dornier Wal, but smaller and single-engined. It was of all-metal construction, with a parasol wing that was attached by struts to a wide, shallow hull. The hull had a single step and stability on the water was ensured by the characteristic Dornier sponsons. The single engine was installed on top of the wing centre section, driving a tractor propeller.
The crew accommodation consisted of an open cockpit with two seats side by side and a position for an observer in the aft fuselage. The Do E could be equipped with a defensive gun or photographic equipment, operated by the observer.
Only four are known to have been completed. Two aircraft with Rolls-Royce Eagle IX engines, known as Do E I, were exported to Japan and Chile. Two more were built as the Do E II, with Gnome-Rhone Jupiter air-cooled engines. The Do E I was distinguished from the Wal and the Do E II by having a wing covered with metal panels instead of fabric.
Dornier registered the two Do E II aircraft for the 1926 German contest for seaplanes, but cancelled their participation shortly before the start.