Subject: Finally, the engine is running well.
From: Rotary Engine
Date: 8/24/2011, 11:02 AM
To: AAA Put this in the To box


Finally, I have the plane running well. It turns out I had two things wrong-
I had mis-wired the crank angle sensor, and I damaged the circuitry on my
EC2 controller. Here's how I screwed up my EC2- I put four nylon screws
through the circuit board where there are already existing holes and drilled
through the faceplate. I also had the screws hold a piece of Kydex which
went around the Sub D connector. I did this with the idea of taking stress
off of all the solder joints holding the assembly together. In the process,
I damaged the solder connections where the mixture potentiometer connects to
the circuit board.  I thought the pot was bad, but Tracy found and corrected
the problem.


I'm lucky that nothing worse occurred due to my ham-fisted tinkering.


I'm still not getting the oil and coolant temps up where they should be, it
was around 80 degrees and the  highest I could get the coolant was 170, and
about 160 for the oil. That was cruising around at full throttle at 3800
feet. Earlier I made a lip for my air scoop that decreased the opening by ~
16 square inches and streamlined the flow of air inside the scoop somewhat.
It appears that I have a ways to go before the cooling/cooling drag is
optimized, but at least I have no worries about overheating. I'm still
taking it easy on full throttle operation, the fastest the plane has been up
to is 159 MPH @ 7100 RPM at 3800 feet. The plane was still accelerating but
I'm still taking baby steps.


Thanks Tracy.


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