WWI Aviation Pictorial History An Illustrated history of  World War 1
The Closing Days Of The War

Modified wing construction and an improved rotary engine made the Siemens-Schuckert D.IV a better aircraft than its predecessor the D.III. Considered superior to the Fokker D.VII, it entered service in small numbers, too late to have much of an impact on the outcome of the air war.
Siemens-Schuckert D.IV
Country: Germany
Manufacturer: Siemens-Schuckert
Type: Fighter
Entered Service: 1918
Number Built: 123
Engines: Siemens-Halske Sh IIIa, rotary, 160 hp
Wing Span: 8.35 m
Length: 5.70 m
Empty Weight: 540 kg
Max Speed: 184 km/h
Ceiling: 26,000 ft in 20 mins
Crew: 1
Armament: Two 7.9 mm machine guns

Winner of the April 1918 fighter competition, the Fokker D.VIII monoplane was delayed by production problems. Only thirty six of them entered service during the last weeks of the war. Equipped with an underpowered engine, the D.VIII was nevertheless an excellent fighter eagerly received by the German air service. Dubbed the "Flying Razor" by Allied pilots, it had the distinction of scoring the last aerial victory of the war.
Fokker D.VIII
Country: Germany
Manufacturer: Fokker Flugzeug-Werke GmbH
Type: Fighter
First Introduced: 1918
Number Built: About 290
Engine: Oberursel UR-II, 9 cylinder rotary, 110 hp
Wing Span: 27 ft 6.75 in
Length: 19 ft 4 in
Height: 9 ft 3 in
Gross Weight: 1,238 lb
Max Speed: 115 mph at sea level
Ceiling: 20,670 ft
Endurance: 1.5 hours
Crew: 1
Armament: 2 Spandau machine guns

The Junker D-1was a design for a rugged, fast medium altitude fighter with all metal construction that was the direct ancestor to the fighters that would be used in the next war.
Junkers D.I
Engine: 1 x BMW IIIa 185 hp.
Wingspan: 9.00 m
Length: 7.30 m
Weight: 654 kg/834 kg
Max. speed: 185 km/h
Ceiling: 6000 m
Crew: 1
Armament: 2 x machineguns

The Junkers CL1 was produced in too late and in too limited numbers to have any real effect in the outcome of the war, but it was a glimpse of things to come. The basic design concepts for the warplanes of World War 2 were now ready to refine.
Junkers CL.I
Country: Germany
Type: Ground Attack
Entered Service: 1918
Engine: Mercedes D.IIIa, 6 cylinder, 180 hp
Wing Span: 39 ft 6 in 12.04 m
Length: 25 ft 11 in 7.9 m
Height: 7 ft 8½ in 2.65 m
Empty Weight: Gross Weight: 2,310 lb 1,050 kg
Max Speed: 100 mph 161 km/h
Ceiling: 19,685 ft 6,000 m
Endurance: 2 hours
Crew: 2
Armament: 3 machine guns
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