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TMX-390 Ballpark Figures

Scotty G

Well Known Member
Hi, Gang,

My RV-8 has a TMX-390 with a WW RV74 CS prop, and I'd like to hear what you guys are seeing for cruise power settings, fuel flows, CHTs, and EGTs.

I normally operated an R-1340 and turbine engines, so I'd like to compare what I see in cruise at several different altitudes versus what you guys run. Kind of make sure I'm getting the best power and efficiency.

Thanks, much appreciated.
 
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