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Building Integrity
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Date:  9-28-2016
Number of Hours:  0.50
Manual Reference:  Section 2
Brief Description:  Hip Hip HOORAYYYY! Oil temps be gone!

So here's the deal, Check out pic 1. Look to see that all the EGT's are 85 degrees, and now so is my oil temp gauge. The Airplanes OAT reads 80 as well as all my CHT's. The hangar temp was 84 so now I have a MAX spread of only 5 degrees between all my sensors. After taking the pic I even saw them settle closer than that! Time to test fly!

I took off with an OAT of about 80 which is on the cool side comparred to all the other flight testing I've done this summer but was aware of that for testing purposes. Right off the bat I noticed my temps "creeping" up much slower than usual. In Fact, so slow that I decided to push the limits and do a hard full power climb all the way to 12,500ft which I haven't seen in over 2 years. The density altitude was showing 14,500 ft. and at WOT I was cruising at 168kts TAS sipping 5.3 gph! WOW that was 38 mpg! All this with oil temps sitting right at 236 without the time to settle down. YES! 236 might sound horrible to some, but for the UL engine, it's happy as can be! And it gets even better.
Down low at 4500 ft. (6500 ft dens alt), throttling back to a cruise speed of 170kts TAS, I was seeing 7.2 gph and oil temps of only 225! Now considering the last time i tested at this density altitude i was seeing 245 oil temp, I can say that a dual pass oil cooler is THEE way to go!

Now, I need a drink...or maybe 5!
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temp gauge is now more accurate

temp gauge is now more accurate

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oh yes. winning

oh yes. winning

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