| CL.III | |
|---|---|
A German Hannover CL.III shot down by American machine gunners in theFirst World War. | |
| General information | |
| Type | Ground attack aircraft |
| National origin | Germany |
| Manufacturer | Hannoversche Waggonfabrik |
| Designer | |
| Primary user | Luftstreitkräfte |
| Number built | 617 |
| History | |
| First flight | 1917 |
| Developed from | Hannover CL.II |
TheHannover CL.III was a two-seat,single-bay biplane built by theHannoversche Waggonfabrik during theFirst World War for theImperial German Army's (Deutsches Heer)Imperial German Air Service (Luftstreitkräfte). It was a multi-role aircraft derived from theCL.II, used to escortreconnaissance aircraft and as aground-attack machine. It entered service early in 1918.

The CL.III (factory designation Typ 3b) was derived from the CL.II; its airframe was lightened and strengthened to improve performance and it was designed to use the water-cooled 160-horsepower (120 kW)Mercedes D.IIIstraight-six engine rather than the 180-horsepower (130 kW)Argus As.III engine even though most D.III engines were reserved forfighters. In the event most aircraft used the readily available As.III engines. The Argus-engined variant was designatedCL.IIIa. The aircraft had redesignedailerons with aerodynamic balances that overhung the wingtips, a modification that provided greater manoeuvrability, especially at the low levels that it was expected to be operating at in its new ground-attack role as theSchutzstaffeln (escort squadrons) were reassigned asSchlachtstaffeln (battle squadrons). Like the other Hannover "light-C-class", or "CL" designated aircraft designed byHermann Dorner, it included an unusualtail structure, with twohorizontal stabilizers which allowed a widerfield of fire for theobserver.[1][2][3]
The CL.IIIb was an experimental aircraft that that was used to evaluate the 190-horsepower (140 kW)NAG C.III engine. After the war, a single CL.III was developed into theHaWa F.3, a limousine aircraft with seats for two passengers in an enclosed cabin where the gunner's cockpit had been.[4]

Data from Hannover CL.III;[7] Hannover Aircraft of WWI: A Centennial Perspective on Great War Airplanes.[8]
General characteristics
Performance
Armament
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