RE: Phaeton 90 - Gas engine?
My latest one has a Quadra 72CC and flys exceptionally well with good vertical performance. The only change I made to original plans was to enlarge the rudder by about 200%. I found incidence on the upper wing made a big difference in how well it flew; wound up with lower wing at zero, upper wing minus 1.5 degrees and stab at zero. The upper wing incidence seemed to be the most important one as just a change of 1/2 degree either way made a big difference. Mine only has ailerons on the lower wing. Now 12 years old and still flying great. I've seen others that fly well with anything from a 1.20 four stroke on up. The G26 should be an excellent choice.