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Hansa-Brandenburg W.18

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W.18
Calvello a91.jpeg
Umberto Calvello with personnel of 261st Squadron next to the wreckage of A91 shot down and captured on 4 May 1918
RoleFighter flying boat
Manufacturer Hansa und Brandenburgische Flugzeug-Werke

Phönix Flugzeug-Werke

First flight1917
Primary userAustro-Hungarian Naval Aviation
Produced108
Developed from Hansa-Brandenburg CC

The Hansa-Brandenburg W.18 was a single-seat biplane fighter flying boat designed by the Hansa-Brandenburg Aircraft Company (Hansa Brandenburgische Flugzeugwerke) for the Imperial German Navy's (Kaiserliche Marine) Naval Air Service (Marine-Fliegerabteilung) and the Austro-Hungarian Navy's (German : Kaiserlich und königlich Kriegsmarine) Naval Aviation (German : Kaiserlich und königlich Seefliegerkorps) during the First World War. It was developed from the Hansa-Brandenburg CC in 1916.

Contents

The prototype was delivered to the Naval Air Service with the majority purchased by Austro-Hungarian Naval Aviation. Hansa-Brandenburg built 47 for them and also sold a license to Phönix Flugzeug-Werke to build an additional 60.

Development and design

The pusher configuration W.18 was derived from the earlier CC fighter and shared that aircraft's single-bay wings, swept lower wing, wing floats, and a single-step hull to allow the aircraft to break free from the water more easily. It replaced the latter's star-shaped interplane struts with two vertical struts on each side. The aircraft built for the Naval Air Service retained the CC's water-cooled 150- metric-horsepower (110  kW ) Benz Bz.III straight-six engine that was mounted on struts between the wings. The armament consisted of two fixed, forward-firing 7.92-millimeter (0.312 in) LMG 08/15 machine guns. [1]

Forty-seven aircraft were ordered by Naval Aviation on 14 December 1916, modified to suit Austro-Hungarian preferences. The fuselage was lengthened to improve stability and minor changes were made to the tail structure, wings and the LMG 08/15 machine guns were exchanged for 8-millimeter (0.31 in) Schwarzlose M-16 machine guns. The Benz engine was replaced by a water-cooled 200–230- metric-horsepower (147–169  kW ) Hiero 6 straight-six engine with the radiator embedded in the upper wing. The aircraft license-built by Phönix were further modified and only had a single Schwarzlose machine gun. [2]

The prototype was delivered to the Naval Air Service's Seaplane Experimental Command (Seeflugzeug-Versuchs-Kommando) in December 1917, but was received with little interest by the Germans. Deliveries of all 47 aircraft were completed by February 1918, although the last 9 were delivered without engines. [1]

Operational history

Austro-Hungary received 47 W.18s, using them to provide air-defence for ports and naval bases along the Adriatic Sea coast. [1]

Variants

Operators

Flag of Austria-Hungary (1867-1918).svg  Austria-Hungary

Flag of the German Empire.svg  German Empire

Specifications (W.18 - Hiero engine)

Data from Hansa-Brandenburg Aircraft of WWI: Volume 2–Biplane Seaplanes [4]

General characteristics

Performance

Armament

See also

Related lists

References

  1. 1 2 3 4 5 6 Owers, p. 70
  2. ↑ Owers, pp. 70, 81
  3. 1 2 Green & Swanborough, p. 85
  4. ↑ Owers, p. 72

Bibliography

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