Anybody ever run one of these?

I have two of the 36 versions the Mark V.  Both were very satisfactory and didn't suffer much for the lack of a front bearing.

I see that yours in is a 29.  I don't see why Duke bothered with that, other than to use up some 29 parks he make have had in his shop.  29's are generally only used for B Speed or B Free Flight.  But a medium performance engine wouldn't do very well in those events.

Yeah, guys like Pat King were using enya 29's for that rat race stuff.  I personally love 29's. I'd use a fox 29 over the 35. I have no idea why and no evidence to try to make a case of why that's a good idea. I just love small engines flying big planes.

Here is a nostalgia view. In our area, Dist. II and III the fellows in south Jersey revived the B-Team race event maybe in the late 70's. We had fun with it. Like the original event the engine limit was .29. All kinds of motors were used. I built one with a S-T .29 RV and my pal John powered his with an Enya .29. Both were competitive. I designed my next plane around the Fox .29 MkIV.  That motor handled very well and got 40+ laps on one ounce at around 100mph. The NCLRA got ahold of the event later and restricted displacement to .28. Maybe to keep out a Nelson? The event developed until the planes were at 120+ and interest died. Can you imagine what one would have done with the GO .25!!
Since this is nostalgia and as a footnote........ I had a chance to go to the nats in 2003 and re-engined my TR with a Nova Rossi .20.  It performed well at a solid 100mph and good laps and we made the final.  The final was a complete disaster with a pit collision, one wrecked model, one heavily damaged and one intact. While the judges were busy deciding how to proceed my pit man and I hastily repaired my plane. Memory fades a bit but I think they decided to restart the race where it was with the two surviving entrants. Or maybe it was a complete restart. Our plane ran perfectly and our opponent not as perfect but still a good fight. In the end we won the first 'modern era' TR event with a plane that had been largely forgotten hanging in the garage for ten years!!  Never got back to the Nats.  TS
Hope I didn't hijack this thread too bad.