RE: Fliton Inspire 60 Acro
IMHO this plane is a blend of 3D and pattern design, also from the pictures it looks like the whole elevator is quite large, so that plus the long tail and moderately sized wing with not-so-thick profile would likely mean that one should be careful with the elevator rates during normal speed flight ( not slow 3D ). A forward CG, plus rapid elevator deflection at medium to high speed would likely result in a violent tip stall. This is not a Flip3D type of plane, rather more close to Funtana or Synergy 3D. My take on that one setup would be to balance the CG, so it does not point up from level flight, when slowing close to idle, and it does not become squirelly when not moving the elevator but flying in some wind, so to keep straight lines and not to show symptoms of being tail heavy ( like dropping the tail on slow approach etc ), but to be quite close to aft limit of CG and far from being nose heavy . One more check is what happens when diving vertically at idle - it should not try to level the flight, maybe only a bit ( one click of trim kind of correction ). Also next check is to fly inverted and it should need a click or two of down trim, but not more, to fly hands off that way. That's for the CG...
Next the deflections - for elevator I would setup low rates in the way that from level flight, half throttle ,when steadily applying full up elevator, but not ramming it suddenly - it should not tip stall. If it does, lower the rate. Then when full elevator is applied suddenly, it should stall or be very close - this should allow for nice snap rolls. The ailerons being that big may also need quite low rated for pattern flight, while my preference for the ruder for low rates is some 70% of high rates plus plenty of expo ( 70% or so ) to smooth it around the center line, so the full deflection at low rate is only used for stall turns. Some people use 3rd medium rates for snaps and stall tturns, low rate for pattern and high for 3D - that's down to personal preference. I also usually add around 30% of expo for elevator, ailerons and more for the rudder at low rates, and start with twice more expo for high rates, then adjust after getting used to the plane reactions and habits.
But my take on the Inspire 60 is that is not a 3D trainer, it is rather a expert 3D machine with some pattern capabilities and should allow to practice stall / tumble manouvers as well, unlike the Flip3D type which does not like to stall unless almost slowing to zero speed.
Well, for now I can not afford to get the Inspire, so I can only have some fun posting about it, the plane seems interesting, I would love to see one in flesh and flown by a good pilot,
Cheers,
Smok