Good morning AAAv60. The Seagull PC-9 is an excellent model. I had a PC-9 until I lost it to a row of bushes when I lost it due to a glitch.

It was an excellent flier, and went was an easy build. The only issue I had (unless they've made a change) is that the tank sits about 3/8 to 1/2 inch high for an inverted engine, requiring you to make a modification to its mounting, and with the inverted engine, tuning the low end and high in settings is very important. Other than that, I had no problems, and after I made that modification and adjusted the needles, the engine always performed perfectly. If you don't want to modify th tank mount, I would recommend that you use a Perry Pump and adjust the low and high end needles accordingly.

I would recommend that you overpower the model a bit. I used an Irvin 53 on mine and it had great performance, and would go vertical for a while. With this power, I could do vertical aileron rolls with a hammerhead turn at the top, and even tailslides.

The airplane is not overly fast with this engine and a prop 4 or 5 pitch prop. If memory serves me correctly, I used a 13 inch prop with a 5 pitch. The diameter may not be correct. Just use the maximum diameter for the engine and adjust the pitch, probably a 4 or 5, or perhaps even a 6. You will find the lower pitches will give better power and less speed.

I found that landings were as if it were on a string. Just maintain 1/4 throttle until on final and you may found as I did, that this is one of the sweetest landing airplanes you can imagine, although it will land a bit hotter than a trainer.

I would also recommend that you do something with the color on the bottom of the wings as it is very difficult to distinguish between top and bottom when in the air.

Here is what I did to mine.

I hope this helps. If not, just remember that, "Experience is a hard teacher. She always gives the test first, and the lesson some time later!"

Phillip