×
Aircraft / Aviation Vehicles & Artillery Infantry Arms Warships & Submarines Military Pay Scale Global Military Ranks
HOME
AVIATION / AEROSPACE
MODERN AIR FORCES
COUNTRIES
MANUFACTURERS
COMPARE
BY CONFLICT
BY TYPE
BY DECADE
WORLD WAR 1
X-PLANE

Junkers J1


Experimental All-Metal Monoplane Aircraft


Aviation / Aerospace

1 / 1
Image from the Public Domain.

The sole, all-metal and revolutionary Junkers J1 monoplane aircraft constructed during World War 1 met its fate in an Allied bombing raid during World War 2.



Authored By: Staff Writer | Last Edited: 7/31/2019 | Content ©www.MilitaryFactory.com
German engineer Hugo Junkers championed the idea of an all-metal aircraft to reduce the need for complicated, drag-inducing external bracing and multiple wing members common to most designs leading up to, and those appearing during, World War 1 (1914-1918). He therefore concentrated his efforts on monoplane form relying on corrugated steel sheet skinning with a steel understructure to produce his first all-metal aircraft - the pioneering Junkers "J1" - regarded as the first practical all-metal aircraft anywhere in the world. His work was only furthered by Junkers & Co's involvement in the Grand War that overtook Europe during the summer of 1914.

In July of 1915, Junkers received the go-ahead to develop a two-seat all-metal aircraft based around his all-metal concept. Desired specifications included a maximum speed of just over 80 miles per hour. This work produced the J1 which incorporated many traditional aircraft elements of the period including a nose-mounted engine (driving a two-bladed propeller), an open-air cockpit, slab-sided fuselage and fixed wheeled undercarriage. Of note was the monoplane wings in play which were mid-mounted along the forward fuselage sides - no external bracing of any kind was used. The tail unit was conventional, sporting a single (all-moving) fin with low-set horizontal planes. Dimensions included a wingspan of 42.4 feet, a length of 28.3 feet and a height of 10 feet. Empty weight was 2,030lb against a MTOW of 2,380lb. Power came from a Mercedes D.II six-cylinder water-cooled inline piston engine developing 120 horsepower. The engine drove a two-bladed propeller at the nose in traditional fashion.

Testing of the aircraft began before the end of 1915 and a first-flight was recorded on December 12thof that year. A brief "hop" action resulted in damage to one of the wings which grounded the design until January 1916. An altitude of 260 feet was reached later that month and more funding followed to further drive the project.

The J1 served out its time in the air as a technology demonstrator and was never a candidate for formal military service in World War 1. It was used to prove the Hugo Junkers concept of an all-metal aircraft viable. Only one J1 aircraft was built.

The J1 prototype survived up until December of 1944 at which point it was destroyed in an Allied bombing raid. At the time, the aircraft resided as a showpiece with the Deutsches Museum of Munich.

For its time in aviation history, the revolutionary J1 managed a top speed of 110 miles per hour and its handling and stability were described as sound by test pilots. Performance was also slightly better than some of its contemporaries.


Specifications



Year:
1915
Status
Cancelled
Crew
1
[ 1 Units ] :
Junkers & Company - German Empire
National flag of German Empire German Empire
- X-Plane / Developmental
Length:
28.38 ft (8.65 m)
Width:
42.65 ft (13 m)
Height:
10.20 ft (3.11 m)
(Showcased structural dimension values pertain to the Junkers J1 production model)
Empty Weight:
2,028 lb (920 kg)
MTOW:
2,381 lb (1,080 kg)
(Diff: +353lb)
(Showcased weight values pertain to the Junkers J1 production model)
1 x Mercedes D.II six-cylinder water-cooled inline piston engine developing 120 horsepower and driving a two-bladed propeller at the nose.
(Showcased powerplant information pertains to the Junkers J1 production model)
Max Speed:
110 mph (177 kph; 96 kts)
Service Ceiling:
1,001 feet (305 m; 0.19 miles)
Max Range:
186 miles (300 km; 162 nm)
(Showcased performance values pertain to the Junkers J1 production model; Compare this aircraft entry against any other in our database)
None.
(Showcased armament details pertain to the Junkers J1 production model)
J1 - Base Project Model Designation; single aircraft completed.
Military lapel ribbon for Operation Allied Force
Military lapel ribbon for the Arab-Israeli War
Military lapel ribbon for the Battle of Britain
Military lapel ribbon for the Battle of Midway
Military lapel ribbon for the Berlin Airlift
Military lapel ribbon for the Chaco War
Military lapel ribbon for the Cold War
Military lapel ribbon for the Cuban Missile Crisis
Military lapel ribbon for pioneering aircraft
Military lapel ribbon for the Falklands War
Military lapel ribbon for the French-Indochina War
Military lapel ribbon for the Golden Age of Flight
Military lapel ribbon for the 1991 Gulf War
Military lapel ribbon for the Indo-Pak Wars
Military lapel ribbon for the Iran-Iraq War
Military lapel ribbon for the Korean War
Military lapel ribbon for the 1982 Lebanon War
Military lapel ribbon for the Malayan Emergency
Military lapel ribbon representing modern aircraft
Military lapel ribbon for the attack on Pearl Harbor
Military lapel ribbon for the Six Day War
Military lapel ribbon for the Soviet-Afghan War
Military lapel ribbon for the Spanish Civil War
Military lapel ribbon for the Suez Crisis
Military lapel ribbon for the Vietnam War
Military lapel ribbon for Warsaw Pact of the Cold War-era
Military lapel ribbon for the WASP (WW2)
Military lapel ribbon for the World War 1
Military lapel ribbon for the World War 2
Military lapel ribbon for the Yom Kippur War
Military lapel ribbon for experimental x-plane aircraft
* Ribbons not necessarily indicative of actual historical campaign ribbons. Ribbons are clickable to their respective campaigns/operations.

Disclaimer | Privacy Policy | Cookies


The "Military Factory" name and MilitaryFactory.com logo are registered ® U.S. trademarks protected by all applicable domestic and international intellectual property laws. All written content, illustrations, and photography are unique to this website (unless where indicated) and not for reuse/reproduction in any form. Material presented throughout this website is for historical and entertainment value only and should not to be construed as usable for hardware restoration, maintenance, or general operation. We do not sell any of the items showcased on this site. Please direct all other inquiries to militaryfactory AT gmail.com.

Part of a network of sites that includes GlobalFirepower, a data-driven property used in ranking the top military powers of the world and WDMMA.org, the World Directory of Modern Military Aircraft.


Facebook Logo YouTube Logo

www.MilitaryFactory.com • All Rights Reserved • Content ©2003-