Hello Cnock
I found the KS 23 in february 1917 on the airfield Fonsomme, in april 1917 on the airfield Clermont les Fermes, all 7. Armee.
Since 28 may 1917 stand the KS 23 on the 4. Armee. I didn't found any infos about their airfield.
At first in the november 1917 I found the KS 23 airfield Cruyshautem, 4. Armee, CO Oblt. Kurt Pflugbeil.
On 7. november 1917 the Staffel change the airfield and moved to Essigny le petit, 5. Armee.
Greeting
Reinhard