Junkers J.I
| J.I | |
|---|---|
| General information | |
| Type | Observation and liaison aircraft |
| Manufacturer | Junkers |
| Designer | Otto Mader |
| Primary user | Luftstreitkräfte |
| Number built | 227 |
| History | |
| Introduction date | 1917 |
| First flight | 28 January 1917 |
| Retired | 1919 |
The Junkers J.I (manufacturer's name J 4) was a German "J-class" armored sesquiplane of World War I, developed for low-level ground attack, observation and army cooperation. It is especially noteworthy as being the first all-metal aircraft to enter mass production; the aircraft's metal construction and heavy armour was a shield against small arms fire over the battlefield.