If I interpret all the responses in the Negative Gs at the top of the loop thread, I should fly with enough airspeed and power that the plane always pulls positive Gs for any reasonably-sized loop.

I was practicing some the last weekend and this is what I observed.

If I make a nice big round loop I have to give it just a nudge of down elevator at the top of the loop, even at full speed and power. So from about 12 to 2 o'clock I feed in an itty bit of down elevator. If I don't do that with this plane, I will not get a round loop, the loop will pinch at the top. Now from what I learned on the other thread, that is not the optimum way to fly but with this plane, that's what I need to get a round loop. In fact one of the other guys in the club said that one of my loops was the roundest loop he'd ever seen. For loop, I give it a nudge of down at 12 o'clock and faded the nudge off to neutral by 2 o'clock.

Now sinceI do have to give it a tad of down elevator I have to be very careful if I'm trying to make any minor adjustment to the track of the plane with the ailerons. As explained in the other thread, if the plane is slightly banked at the top and the force goes negative for a bit, the track adjustment is reversed. If course if I can line up for the loop perfectly, I shouldn't need to adjust track but I'm still working on that.

I think perhaps my plane (Monolog 70) just flies heavy. It feels heavy compared to the smaller 3D planes I've flown. I've been meaning to weight it with battery but haven't gotten around to it yet. I do have more than enough power for unlimited vertical but the plane still seems to fly heavy. I'm flying with a 15x10. I have a 16x8 which I haven't tried yet but I would think that if the plane is heavy, airspeed is more important that pull and the high pitch prop would be better. Again, I still have enough power to climb straight up as long as I want.

-l2t aka Ken

PS

I really wish there were someone around where I live that know they were doing so they could fly my plane, then watch me fly, and give some advice. Maybe my plane sucks; maybe I suck. Maybe I just need more practice with this plane.