Hi
with the 65 fs in front its very fast perhaps to fast .I have to fly on quater throttle
it will go vertical for ever, it does become very twichy with any manouvers
done at speed. I also have a world models rambler 45(have a look at photo) with the same engine
now that flys like a dream at any speed, maybe the wing profile on the jupiter
has something to do with it . I will see how it holds up .