![](https://www.historynet.com/wp-content/uploads/2018/03/Fonck-cannon-960_640.jpg)
The French ace stands next to S452, one of two Spad XIIs armed with a 37mm cannon that were assigned to Spa.103 in May 1918. (Louis Risacher Album via Jon Guttman)
The French ace stands next to S452, one of two Spad XIIs armed with a 37mm cannon that were assigned to Spa.103 in May 1918. (Louis Risacher Album via Jon Guttman)