Glenn_K
I'm Batman
- Joined
- Dec 6, 2009
- Messages
- 588
- Location
- West Jordan, Utah
- Aircraft
- Butterfly "Super" Monarch, Butterfly Aurora, AutoGyro Calidus Piper Warrior, C150, C172
- Total Flight Time
- 250+
You may remember that I wrecked my engine back in October. I found a local Rotax expert and he fixed it for me. I spent the last couple of months with the Monarch in my garage at home. I did a bunch of work on it while the engine was out. Now the engine is back in and it is ready. I took it back down to Spanish Fork today and, after a few adjustments, it was ready for the engine break-in routine.
It was cold out. 31 degrees.
I was really nervous. I had done a lot of research on the proper setup for the engine, fuel and oil systems. I felt it was all ready, but I was apprehensive.
It started on the first pull.
I let it warm up as recommended and opened the throttle to full to check prop loading. After a pitch adjustment, I began the long break-in procedure. (There's an APP for that! :lol: )
It went flawlessly. I was so relieved. It took just over an hour and it used just over 3 gallons of fuel. The oiler appears to be working as designed and it all held together. The EGTs were in the proper ranges at all RPMs throughout the test. I couldn't be happier, or more relieved, with the way it went.
After the break-in was concluded we readjusted the propeller blade pitch for proper flight rpm and tested it again. Interesting, and fantastic results!
The blades were at 8 degrees initially. That gave me 6000 rpm wot. We adjusted the pitch to 7 degrees for the break-in. That gave me the 6500 rpm wot I needed. After the test we adjusted the pitch to just a hair above 6 degrees. This gave me the recommended 6700 rpm wot on the ground. According to the procedure I followed, this should give me the 7000 rpm wot in flight that is recommended for the 618. I noticed the difference immediately. The throttle response is noticeably quicker and it definitely feels like it is pushing harder.
I'm very happy. All is well with the Monarch. If the weather is good enough tomorrow, I'll be taking it up for a bit of flight testing.
:whoo:
It was cold out. 31 degrees.
I was really nervous. I had done a lot of research on the proper setup for the engine, fuel and oil systems. I felt it was all ready, but I was apprehensive.
It started on the first pull.
I let it warm up as recommended and opened the throttle to full to check prop loading. After a pitch adjustment, I began the long break-in procedure. (There's an APP for that! :lol: )
It went flawlessly. I was so relieved. It took just over an hour and it used just over 3 gallons of fuel. The oiler appears to be working as designed and it all held together. The EGTs were in the proper ranges at all RPMs throughout the test. I couldn't be happier, or more relieved, with the way it went.
After the break-in was concluded we readjusted the propeller blade pitch for proper flight rpm and tested it again. Interesting, and fantastic results!
The blades were at 8 degrees initially. That gave me 6000 rpm wot. We adjusted the pitch to 7 degrees for the break-in. That gave me the 6500 rpm wot I needed. After the test we adjusted the pitch to just a hair above 6 degrees. This gave me the recommended 6700 rpm wot on the ground. According to the procedure I followed, this should give me the 7000 rpm wot in flight that is recommended for the 618. I noticed the difference immediately. The throttle response is noticeably quicker and it definitely feels like it is pushing harder.
I'm very happy. All is well with the Monarch. If the weather is good enough tomorrow, I'll be taking it up for a bit of flight testing.
:whoo: