O.Thetford, P.Gray German Aircraft of the First World War (Putnam)
A.E.G. C VII
Two versions of the A.E.G. C VII appeared, in December 1916. Both were single-bay machines, with basically similar fuselage and tail, but one was built with straight wings and the other (illustrated below) with a heavily swept upper wing and a large spinner on the airscrew. Engine, 160 h.p. Mercedes D III. Span, 11.1 m. (36 ft. 5 1/8 in.). Length, 6.2 m. (20 ft. 4 1/8 in.). Weights: Empty, 758 kg. (1,668 lb.). Loaded, 1,118 kg. (2,462 lb.). Speed, 165 km.hr. (103.12 m.p.h.). Climb, 1,000 m. (3,280 ft.) in 4 min.
J.Herris AEG Aircraft of WWI (A Centennial Perspective on Great War Airplanes 16)
In August 1916 Idflieg issued a requirement for a two-seat escort aircraft. This was to be a lightened C-type, later categorized as a CL-type, powered by a 160-180 hp engine. AEG was one of the companies that responded with a proposal, and in October Idflieg gave AEG a contract for three prototype C.VII aircraft. The C.VII was powered by a 160 hp Mercedes D.III and the first aircraft was completed in December 1916. It was about 20% smaller than the C.IV powered by the same engine. Initial flight testing was apparently done in January 1917 at Nieder-Neuendorf, and the slightly modified C.VII prototype underwent testing in March. The initial Idflieg report (dated April 30, 1917) said the C.VII offered little that was new. The observer's field of fire was considered poor for an escort aircraft and the performance, while superior to the C.IV, was not as good as expected although flying qualities were acceptable. The C.VII was recommended for service on the less-demanding Eastern Front providing the load tests were passed. That recommendation was not compelling and no production was undertaken.
The third C.VII prototype was built with a highly-swept-back wing with minimum gap, intended to improve the gunner's field of fire. However, the competing Halberstadt and Hannover CL-types were superior and were placed in production while the AEG C.VII was not.
AEG C-Type Specifications
C.V C.VII C.VIII C.VIIIDr
Engine 220 hp Mercedes D.IV 160 hp Mercedes D.III 160 hp Mercedes D.III 160 hp Mercedes D.III
Span Upper 13.26 m 11.10m 9.50 m 11.20 m
Span Lower 12.45 m 10.05 m 9.10m 10.40 m
Chord Upper 1.75 m 1.55 m 1.74 m 1.45 m
Chord Lower 1.75 m 1.30 m 1.33 m 0.82 m
Gap 2.07 m 1.85 m 1.60 m 1.00 m
Wing Area 41.5 m2 26.0 m2 22.67 m2 31.0 m2
Length 7.60 m 6.20 m 6.20 m 6.90 m
Track 2.30 m 2.00 m 2.10 m 1.90 m
Empty Weight 900 kg 758 kg 800 kg 800 kg
Loaded Weight 1,432 kg 1,118 kg 1,160 kg 1,160 kg
Maximum Speed 165 kmh 175 kmh 170-190 kmh 158 kmh
Climb, 1000m 7 min. 4 min. 3.8 min. 3.8 min.
Climb, 2000m 13 min. - - -
Climb, 3000m 22 min. - - -
Climb, 4000m 37.5 min. - - -
Armament 1 fixed & 1 flexible machine gun 1 fixed & 1 flexible machine gun 1 fixed & 1 flexible machine gun 1 fixed & 1 flexible machine gun