its easy to see what i mean just google 2 things and click on the images tab.... 1.oberursel u.r.2 110hp engine..... 2. clerget 9b
then look at the cmk engine. it is definately a clerget, not really a bad one so you can use it in a sopwith camel , strutter , triplane ,a bristol m1.c,some other brit or french planes.so it will not go to waste you just use it later on another build