Back in the early 60's, there were these cheap Japanese engines that began to be in the Hobby shops. They were OS but they had black steel fins that were made onto the sleeve like the Green head K&B's. They ran real good once you got over your physc about the cheap foreign stuff. They were cheap ($14.95) too. Then about '68 they came out with the OS MAX series that looked a lot like the engines today. The OS MAX 30 & 35 R/C were used by everyone who couldn't afford a K&B 45. In control line the 35 was as good as a fox 35. Along about then, the Italians got in the picture. Those Supertigre's were made very nice but too expensive. They were also too highly tuned for sport use we thought. I still have some of those engines ST G21/40 and G21/46's) and they are mild compared with today's world.

Jim