I also have full scale time, in the right seat, but have done lots of take-offs and landings. I also use the rudder, a lot. What I was getting at about the tip stall on my Staggerwing, is the very sudden, very violent, and very unannounced, (especially since I am not sitting in the seat,) dropping of a wingtip, which, in every account of it's happening in full scale, that I have read, it is called a tip stall.

I am also an R/C instructor, with 30+ years experience, and do teach rudder use, as well as trying to teach scale like flying, but most of the guys just aren't interested in continueing the practice/use of the rudder once they are turned loose. So, some of them still crash, usually because they didn't use rudder instead of aileron, causing the drag to spin, NOT a tip stall. My favorite type of flying is scale like, warbird, classics, etc. My second large R/C was a Sig 1/4 scale Clipped Wing Cub, powered with the OS 160 FT. Flew it for over 8 years until it was mid-aired during a big meet when we had 14 1/4 scale cubs in the air at the same time, and one of the others went out of control and left the pattern to come under mine and suddenly climb up and cut my tail nearly off. Hazel Sig had flown mine once at one of the Father's Day meets at the Sig Field. I usually wheel landed it, because it's a prettier landing than a three point. I have never tried to three point the Staggerwing, the problem is our field layout, it is in a "bowl", and creates a "dead air" space about 2-3 feet off the runway, where the model just either "falls" thru it, or won't slow down to settle smoothly. Most all of our pilots have the problem. The couple rotor heads in our club really feel it, also. NOT talking about the "ground effect" point, either.

Alf, saw your videos, including the Waco with the OS 160 Twin, and your Top Flight giant P-40. You shouldn't have any real trouble with the Staggerwing. Your flying field is beautiful. Great flying on those, by the way.
The cowl is slightly tapered, but at the approximate point the engine head(s) would be is very close to 9 inches, or 230mm. The OS 160 twin fits comfortably.

Al, I've seen a couple of those Staggerwings, also. I did see, and talk to the owner of the green/red NC80309 G17 at Oshkosh this year. I want to redo mine in that scheme.

Denis, I switch back and forth between wheel landing and three pointing my Curtiss P-6E, Waco YMF-5, and Ryan STA-M, as well as my little E-Flite PT-17e. My Black Horse 90 size P-40 only gets wheel landings, as well as my VQ P-51. I have not had any pure "goof around" models in my hanger for years. I did take a few years away from fixed wing to learn helcopters, but never got into the 3D stuff, because my free learning time changed/disappeared just when I was ready to start learning it. Then my eyes couldn't keep up with the orientation any more, so went back to total fixed wing about 5-6 years ago.

My fleet that I took out the last time I went flying, Sept 3rd. Those are all electric powered.