So, I took the plane out yesterday and flew several times, each with a miraculous dead-stick landing that probably took a year off my life for each one due to heart damage...

I had our resident 2-stroke expert helping me. We got it running nice on the ground, and each time after a few minutes in the air it would start to sag out and die. This time it didn't matter the flight attitude, maneuver, etc. It seemed to be leaning out after about 3 minutes each time. We'd richen the top end a couple of clicks on the ground, start it up, and then it would be running a little rich. We tried leaving it running a little rich, and then it would again lean out after a few minutes. We tried adjusting the low-end, we richened it up and leaned it little by little until the throttle response was smooth.

The airplane is a Goldberg Extra 330 77" (about 1/4 scale). The cowl is very open in the front and there is an additional large opening under the exhaust stack.


---Cyclic: What carb do you recommend? The Perry carb?