0-200 engines as installed in C-150 are baffled similar to the Chip Hyde example but in addition have sheet aluminum wrapped around and spring clipped to the cylinder. These have an ~2 inch wide seam, on the centerline of the cylinder, for air inlet and exit. The purpose of this is to force air through the cooling fins for a much longer cooling path than just the !QUOT!edge!QUOT! effect next to the baffle. this results in a more even cooling around the circumference of the cylinder.

When I first this I was appalled, there was no way there was enough airflow around the cylinders to handle the cooling. Rational thought then took hold and I realized the guys that designed the baffling knew what they were doing.

More even cooling around the total circumference would help to promote ring seal at running temperature probably not a huge consideration.

I do not advocate doing this to our aircraft unless a thorough test setup is contemplated with proper temperature monitoring.