These engines are currently used in a Society of Antique Modelers event called "Foxacoy". The rules require either a Fox .35 Stunt or a McCoy Redhead .35.

These are iron piston, steel sleve engines and require 25-28% castor in the fuel.

If you have never run any of theseold engines I expect you will be surprised how well they run. Just don't let it run too lean.

jess