I'm sure that if Tracy were starting with a blank slate he might do his cooling system differently. But, he's already racked up an impressive number of hours with his evaporator cores. It would be a major task to go back to a different design at this point.

I've had the benefit of watching this newsletter and I'll build a cooling system the way that I think it ought to be done. Go ahead and slag on Tracy's cooling system if you want, I'll see if I can build one that I think will work better, but until I do, I'll sit on the sidelines and try to learn from others.

If anyone is interested in what my cooling configuration will be, it's a stock gen II oil cooler with a C&R radiator that's twice the size of the oil cooler. They will be mounted next to each other underneath the engine, with a scoop right underneath the spinner, which is(will be) 16" dia and 5 inches forward of the stock placement of the prop hub. There will be a duct going from the scoop to the heat exchangers. I hope to have the airplane done in 12-18 months.

I'm sure Tracy will be flying way before I am.

Brian Trubee

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