Ondra, haven’t commented up until now, because i’ve Been at a loss for words, your skills with this size leave me spellbound! Truly inspiring. I have a idea for the engine that’s a bit too late to the table since you fixed it, but anyways, I believe these particular engines had a propensity for shedding cylinders in flight (at least the Gnome 100 did, and they are very similar) so had you not been able to salvage what you had, you could have nipped one or two cylinders off and laid it on the base close by as a repair job. Glad you got it to work though, and can’t wait to see the finished product!
Ian