I am having starting problems with one of my P300's .During the starting sequence the acceleration phase fails and I get a low temp display on the GSU (last off condition). The battery is fully charged and I am looking for some advice. Might this be a EGT probe problem or are there adjustments that need to be made for the acceleration portion of the start up.

Thanks,
Chris

Dave,

Here are the limit results for my #2 turbine that is having the acceleration low temp problem U-accelr 1 is .250 and U-accelr 2 is 1.024, U- idle is .79 My #1 turbine is working well with normal acceleration. The limit results are U-accelr 1 is .250 and the U-accelr 2 is .952, U-idle is .73

The turbine with the acceleration issue was sent to Germany over the winter for a new glow plug. I did two test runs after installation in the sailplane and discovered the issue. I was able to start it after a number of attempts but the Low Temp and Acceleration was giving me problems during each attempt. It would come up to temp during the start cycle and during the acceleration phase the temp would drop down to well under 100C. My last takeoff was successful when I got both turbines going but the peak RPM was not achieved, it was around 98,000 instead of the 105,000. During the flight I tried a re-start a couple of times and it showed the Low Temp fault. I have approximately 12 to 14 hours on both turbines. Both turbines were rebuilt by Jet Cat in the fall of 2017.

I made the adjustment and am having better results. The first start will typically give me a low temp fault but the second start attempt is usually successful. The acceleration phase is still vary slow. The peak RPM is also been met so I have good thrust. Are there further adjustments that we can make to optimize the starting process.