Maybe I just couldn't find it but is there a sub-forum for the old ignition airplane engines? I looked in Glow Engines without much success. The Gas forum wouldn't be appropriate and while some of the early engines were indeed diesels, it seems that your Diesel sub-forum deals mostly with converted modern glow engines.

Due to vintage ignition engines showing up more and more on eBay, coupled with the new reproductions that Woody Bartelt and others are producing, there seems to be a growing interest in vintage ignition engines. The operation and maintenance of the old ignition motors are quite different than modern glow engines and I feel that there needs to be a special place on RCU for them.

Thanks for your consideration.

Harvey