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Hannover CL.V

Two-Seat Interceptor / Biplane Fighter

The CL.V marked the last of the Hannover CL biplane fighters to achieve operational service during World War 1.
Authored By: Staff Writer | Last Edited: 7/31/2019
The final fighter entry by the Hannoversche Waggonfabrik AG (Hannover) concern of Germany for the German Air Service during World War 1 (1914-1918) became the "CL.V". The aircraft was a further development of the two-seat CL.III biplane which, itself, was an evolution of the first twin-seat CL.II biplane product of 1917 (both detailed elsewhere on this site). The CL.V mark arrived in the war's final months and, therefore, would have a very limited impact on the outcome - production would total only about 120 units with many arriving after the Armistice of November 1918 had already been signed.

Even as the CL.II and CL.III forms were making their way to fighter squadrons for Germany, German authorities were on the lookout for an Allied fighter-killer. Work on a successor was underway by mid-1918, just months before the war would officially end. What was sought was a stable, highly-capable gunnery platform utilizing a crew of two, having excellent maneuverability/agility, and heightened performance with good diving capabilities. All told, this mount would outshine anything the Allies could get into the air to face it and (hopefully) work to change the tide of the air war in Germany's favor. Standard armament was to be twin forward-facing machine guns with a trainable rear-facing machine gun giving the aircraft optimal firepower for the role.

Hermann Doner of Hannover drew up a new fighting biplane along these lines, utilizing all the lessons learned from his previous attempts through the CL.II and CL.III. Powered by a BMW IIIa series engine of 186 horsepower, the aircraft was designated as the "CL.V" and this would become the company's last attempt at a fighter before the end of the war (pre-war the company was tied to the railway industry and was not an aeroplane maker).

Engineers went with an equal-span biplane wing configuration featuring single bays and single "I-plane" struts. The upper wing member sat close to the fuselage with a section of the trailing edge cut-out at the pilot's position helping to improve visibility some. The engine was positioned in the nose in the usual way and this served to drive the two-bladed propeller unit. The crew of two were seated in tandem with the pilot forward and gunner aft - the gunner's position was, as in the CL.II and CL.III before it, again raised for optimal firing angles. The tail unit originally incorporated the CL.II's biplane configuration but the production form adopted a more traditional single-finned unit. The undercarriage was of typical tail-dragger configuration for the period, involving wheels under center-forward mass and a simple skid under the tail.

The CL.V compared favorably to other similar fighter types of the day, including the famous Fokker D.VII, despite its twin-seat configuration. Authorities were sold on the design enough to order an initial production batch of 100 aircraft (these with single-finned tail units) in September of 1918. However, the Armistice of November 1918 arrived much too soon for the effort to gain traction and only about forty-six or so of the fighters were completed - none destined to reach the Front before the end.

Even so, Hannover continued serial production of the fighter under the limitations of the Armistice during the ensuing months and this resulted in a further sixty-two fighters being added to the stable. At least one, following weight-reduction modifications, went on to achieve a World Altitude Record of 27,362 feet during November 1919.

Beyond this, fourteen CL.V fighting biplanes were produced under license by Kjeller Flyvemaskinsfabrik of Halden, Norway in 1923 for service with the Norwegian Army Air Service where they were designated as Kjeller FF.7 "Hauk" ("Hawk"). These flew into 1929, some equipped with skis for ground-running on snow, before being replaced by more modern, advanced types.


Retired, Out-of-Service
[ 122 Units ] :
Hannoversche Waggonfabrik - German Empire / Kjeller Flyvemaskinfabrik - Norway
National flag of German Empire National flag of Norway German Empire; Norway (post-war)
- Fighter
- Close-Air Support (CAS)
- Reconnaissance (RECCE)
22.97 ft (7 m)
34.61 ft (10.55 m)
9.35 ft (2.85 m)
(Showcased structural dimension values pertain to the Hannover CL.V production model)
Empty Weight:
1,587 lb (720 kg)
2,381 lb (1,080 kg)
(Diff: +794lb)
(Showcased weight values pertain to the Hannover CL.V production model)
1 x BMW IIIa engine developing 186 horsepower and driving a two-bladed wooden propeller at the nose.
(Showcased powerplant information pertains to the Hannover CL.V production model)
Maximum Speed:
115 mph (185 kph; 100 kts)
Service Ceiling:
29,528 feet (9,000 m; 5.59 miles)
Maximum Range:
345 miles (555 km; 300 nm)
990 ft/min (302 m/min)
(Showcased performance values pertain to the Hannover CL.V production model; Compare this aircraft entry against any other in our database)
2 x 7.92mm MG08 machine guns in fixed, forward-firing mountings and synchronized to fire through the spinning propeller blades.
1 x 7.92mm MG14 Parabellum machine gun on trainable mounting in rear cockpit.
(Showcased armament details pertain to the Hannover CL.V production model)
CL.V - Base Series Designation
F.F.7 "Hauk" - Norwegian license-built version of the CL.V; production by Kjeller.

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