I'm not convinced that his new ailerons are going to work too well, either. One long cable per aileron, with multiple (3?) fairly tight bends. Let's see what Marc says. As someone commented weeks ago, all that friction should help with flutter!What I see now, Peter is making some kind of brackets, to install "Push-Pull" cables, but how he will rout this cables trough airframe? This cables are much bigger in diameter that steel cables installed now and you can't bent them like this go around the rollers now. What he's thinking? With so many 90 degrees turns and small radius bends - ailerons would be even more "loose" with new cables and much "stiff" to control!
It depends on the flutter modes and the stiffness of the elevator, stabilizer, and fuselage.If he's adding the mass balance to the midline for flutter then it won't work.
Stephens tried that approach with his Akro monoplane, and eventually arrived at a situation where adding mass to the horn actually lowered the speed at which the wing and ailerons fluttered because of the way it changed the overall mass distribution of the wing.This's best way to do it.
I could be wrong, but from the video it appears to me that he is planning on using a push-pull cable inside each wing, and a pair of sleeved pull-only cables inside the fuselage where the sleeves replace the four pulleys in the fuselage belly. If that is the case, he has a rude awakening in his future when he goes to tighten the cables to remove the slop.I'm not convinced that his new ailerons are going to work too well, either. One long cable per aileron, with multiple (3?) fairly tight bends. Let's see what Marc says. As someone commented weeks ago, all that friction should help with flutter!...
I haven't followed Malish's project. I would recommend push-pull tubes and bellcranks.Im not familiar with the types of cables and how they perform. What would you recommend?
And how does Malish use them? Maybe Peter can learn from Malish. The PJ is a good aircraft.
This guy's from Ukraine building 5 seat aircraft and they very strongly believe in the weight reduction. And their aircraft is very light!Weight control? Yeah, that's probably the main reason I have redesigned so many parts of my project so many times. "I'm not fine with that'!
The weight increase and other possible changes are pertinent to Light Sport Aircraft in general.The FAA is promising relief from the 51% rule soon. (2years?) Could be up to 3000 pounds and four seats. I don't know if there will be a speed limit.
As promised by the FAA Acting Director at Theater in The Woods, Airventure 2019.