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Junkers CL.I

Imperial Germany (1918)
Picture of Junkers CL.I Monoplane Fighter

The Junkers CL.I could have been so much more had it not been for production difficulties encountered in war time Germany.


Detailing the development and operational history of the Junkers CL.I Monoplane Fighter.  Entry last updated on 3/20/2014. Authored by Staff Writer. Content ©www.MilitaryFactory.com

The Junkers CL.I was something of a break-through aircraft design for its time, appearing during the latter stages of World War 1 (1914-1918). Due to production difficulties in war-torn Germany, the aircraft saw only limited manufacture numbering less than 50 units. Junkers approached the CL.1 with a largely metal design coupled to a low-wing assembly - this at a time when manufacturers favored fabric-over-wood aircraft utilizing an upper and lower wing assembly (biplane).

Development of the CL.1 was formed along the lines of the preceding all-metal designs in the Junkers D.I and the J.I. The CL.1 was given a standard operating crew of two seated in tandem with the pilot in the forward open-air cockpit and his gunner/observer in the rear cockpit. The engine was mounted at the front in the usual way with a single-finned tail unit at the rear. Power was served from a Mercedes D.IIIa series 6-cylinder, liquid-cooled, inline engine developing 180 horsepower. This, coupled to the airframe design, provided a maximum speed of 100 miles per hour with a service ceiling reaching 19,600 feet. The aircraft featured an armament suite of 3 x 7.92mm machine guns - two fixed, forward-firing and the third on a trainable mount in the rear cockpit - as standard along with provision for antipersonnel grenade dispensers mounted under the fuselage.

Despite the revolutionary design, German factories were heavily experienced in the rapid construction of fabric-over-wood aircraft and found the metal design of the CL.1 difficult to incorporate into well-accepted practices. The promising CL.I therefore foundered and held little impact by war's end. Despite the CL.1's failed showing, the concept of all-metal construction in aircraft grew into the norm heading into the interwar years. Indeed, all-metal aircraft were the norm during World War 2, making fabric-over-wood mounts largely obsolete.

Any available statistics for the Junkers CL.I Monoplane Fighter are showcased in the areas immediately below. Categories include basic specifications covering country-of-origin, operational status, manufacture(s) and total quantitative production. Other qualities showcased are related to structural values (namely dimensions), installed power and standard day performance figures, installed or proposed armament and mission equipment (if any), global users (from A-to-Z) and series model variants (if any).






Our Data Modules allow for quick visual reference when comparing a single entry against contemporary designs. Areas covered include general ratings, speed assessments, and relative ranges based on distances between major cities.

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Relative Maximum Speed Rating
Hi: 100mph
Lo: 50mph
    This entry's maximum listed speed (100mph).

    Graph average of 75 miles-per-hour.
Aviation Era Impact
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Useful in showcasing the era cross-over of particular aircraft/aerospace designs.
Unit Production Comparison
Comm. Market HI*: 44,000 units
Military Market HI**: 36,183 units
47
47


  * Commercial Market High belongs to Cessna 172.

  ** Military Market High belongs to Ilyushin Il-2.


Altitude Visualization
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Supported Mission Types:
Air-to-Air
Interception
Unmanned
Ground Attack
Close-Air Support
Training
Anti-Submarine
Anti-Ship
Airborne Early Warning
MEDEVAC
Electronic Warfare
Maritime/Navy
Aerial Tanker
Utility/Transport
Passenger Industry
VIP Travel
Business Travel
Search/Rescue
Recon/Scouting
Special Forces
X-Plane/Development
National Flag Graphic
National Origin: Imperial Germany
Service Year: 1918
Classification Type: Monoplane Fighter
Manufacturer(s): Junkers - Germany
Production Units: 47
Global Operators:
Imperial Germany
Structural - Crew, Dimensions, and Weights:
Unless otherwise noted the presented statistics below pertain to the Junkers CL.I model. Common measurements, and their respective conversions, are shown when possible.

Operational
CREW


Personnel
2


Dimension
LENGTH


Feet
25.92 ft


Meters
7.9 m


Dimension
WIDTH


Feet
39.50 ft


Meters
12.04 m


Dimension
HEIGHT


Feet
8.69 ft


Meters
2.65 m


Weight
EMPTY


Pounds
2,315 lb


Kilograms
1,050 kg

Installed Power - Standard Day Performance:
1 x Mercedes D.IIIa 6-cylinder liquid-cooled inline engine generating 180hp.

Performance
SPEED


Miles-per-Hour
100 mph


Kilometers-per-Hour
161 kph


Knots
87 kts


Performance
CEILING


Feet
19,685 ft


Meters
6,000 m


Miles
3.73 mi

Armament - Hardpoints (2):

STANDARD:
2 x 7.92mm machine guns in fixed, forward-firing mounts on fuselage.
1 x 7.92mm machine gun on trainable mounting in rear cockpit.

OPTIONAL:
Antipersonnel Grenade Dispensers
Visual Armory:

Graphical image of an aircraft medium machine gun
Variants: Series Model Variants
• CL.I - Base Series Designation