Hello!
I´m still working on a list with the most important aircraft engines of WW1. While doing so, I found several geared engines (like some inline engines for the Spad fighters and the less common Siemens-Schuckert rotary engines).
Can someone provide me with some details (detailed photos, or computer renderings) of these devices? Below I attached a photo of the SSW D.I with a geared rotary engine but unfortunately you can´t see very much of this device on the picture. The data would be of great help for me in a chapter “Technical Details” …
Thank you in advance for your help!