Anatra D

The Anatra D or Anade was a two-seat reconnaissance aircraft built in Russia and flown during World War I. 

It was a two-bay biplane of conventional configuration that seated the pilot and observer in tandem, open cockpits. Test flights revealed a number of design flaws, including weak wing structure (that killed company test pilot Jean Robinet on 21 July 1917) and poor stability. 

Nevertheless, the aircraft was ordered into production by the Army, and deliveries commenced in May 1916 after revisions had been made to correct the aircraft's centre of gravity in the hope of addressing the worst handling problems. The type continued in limited service after the war, eventually being used as a trainer until about 1919.

Operators
Imperial Russian Air Force: Initial deliveries began on 16 May 1916 with 170 acquired
Soviet Air Force
Specifications

Crew: two, pilot and observer
Length: 7.70 m 
Wingspan: 11.50 m 
Height: 2.9 m 
Wing area: 35.0 m2 
Empty weight: 515 kg 
Gross weight: 865 kg 
Powerplant: 1 × Gnôme Monosoupape, 74 kW / 100 hp
Maximum speed: 132 km/h 
Range: 350 km 
Service ceiling: 4,000 m 
Rate of climb: 2.4 m/s 
Armament: 1 × vickers mg for observer, 30 kg bombs