I had one of these back in the late 70's as a Slow Rat engine. Good for nostalga combat model these days (which I have it in). Not good for stunt. I know ureelybob. His stuff is in good condition as he says.

Just kinda' guessin' Jim, but back in the '50s when Fox was king in the stunt circles Johnny B made the K&B that way because most everyone except george Aldrich flew counter-clockwise. With an inverted K&B and no muffler, the exhaust blew out away from the model and there was less mess on those dope finishes.
That was what some of the old timers of the day told me. Back then I never cared much. On a profile Ring Master, that K&B flooded like crazy and bloodied me lil' ol' fingers, so I wanted an exhaust pointing down. Never occurred to me to put the engine inside the circle. [:-]

These are my 1 1/2 Doolings . I used to have a scan of the Dooling parts list and 3 view which got lost in a hard disc crash but I'm certain it showed a LH exhaust (which is why there's still confusion).

The other engine with the RH exhaust was made here in Adelaide by Gordon Burford (of Taipan fame) and was sold in a Sabre box. Originally it was called a Sabre 29 with the Sabre down the transfer port but North America, who made the F-86 Sabre, came the heavies with him and threatened a law suit if he didn't change the name (can you imagine some country ordering 20 Sabres for their air force and ending up with 20 model engines?). Gordon couldn't afford the legal costs so he filled in the name in the crankcase mould while he considered what name to choose next. Shortly after the first Glo Chief was born.

I finally looked at the ebay link. Although I am not a "Supertigre expert" I believe that the engine is the combat version. It is lapped, not ringed. I think this version was replaced by two specialized models, one for stunt and one for combat. Most Supertigres of that day had the "V" on the crankcase. I think it was for looks, not part of the designation.

About 10 years ago, all Supertigre production was moved to China. I don't remember if the entire operation was sold or if MR. Garofali retained ownership. I understand that the quality standards have been maintained.

IMHO it would be a good engine for general purposes but better for a collector. Probably not good for stunt.

George