In balance here, Tom and I have modified our planes. We opted for hingepoints and added some blocks in the surfaces. We also have leaned towrad the servo in the tail. Tom and I are trying to find out the most rearward CG flown to base an idea of how far back we can go safely. I prefer mine 3D tailheavy. But not warbird tailheavy.
The reason I mention all this is that I didn't want a new reader to think this plane is plagued by tailheavyness... from what I gather, balance hasn't been an issue with this plane. Tom's and mine have several mods in favor of the tailheavyness...
CF gear, CF spinner, tank on CG instead of in the nose, added hingeblocks behind CG, hingepoints instead of CA hinges, etc.
Our dissappointment is in that we are tyring to get a very light plane and in the process ended up with it tailheavy. Going to pull-pull will eliminate most of the problem, but we again prefer the direct linkage. Sometimes you just gotta make concessions.
We'll be reporting on what we did to acheive balance. I think for now Neo will fy it wiht the extra weight in then remove some as we go to see how far back will be safe... then determine if changes to the rudder setup would be necessary to remove all of the added weight.
ORIGINAL: NE0
Hey guys, used a borrowed prop and battery to check my CG this afternoon and not good news... VERY tailheavy. [:@]
I was wondering if any of you that have been flying the Vision could let me know where your CG is now... are you flying at suggested (3-1/4" back from LE at tip), or have you moved it back. Does it feel nose-heavy at suggested CG point?
Looks like I'm going to have to add substantial weight to the nose and may still end up being 1/2 an inch or so behind suggested CG... whadya think about that CG position?
I'm at an even 16 pounds AUW now, but I may have to add 3/4 pound or more to balance. Still lighter than a DV, but this ship doesn't have the wing area the DV has. [
] I was shooting for a 15-1/2 to 16 pound bird and got there... but it looks like it will have to be a 16-3/4 pounder in the air if I want it to balance. I've flown tailheavy planes before and don't EVER want to go there again! [sm=eek.gif]
Tom