Great to see another video from you man! I have one suggestion - stick the rimfire on it and see if it flies!Some more footage for ya
See if you can figure this one out...
Edit: just read your comment and looks like you got it figured out!
Great to see another video from you man! I have one suggestion - stick the rimfire on it and see if it flies!Some more footage for ya
See if you can figure this one out...
That's the way all Kitfoxes are, they have suspended flaperons. They should be parallel to the bottom surface of the wing.Just thinking out loud I could be totally wrong though. The ailerons seem like they are built as flaps that might be creating drag or just acting as flaps and reducing your airspeed causing the plane to stall?
I see than in that case I just think it’s under powered.That's the way all Kitfoxes are, they have suspended flaperons. They should be parallel to the bottom surface of the wing.
Tell it not to do thatThe simple stick kissed a soccer goal.. I just need to print a new firewall we're back in action View attachment 173928
So your plane kissed something before you did?The simple stick kissed a soccer goal.. I just need to print a new firewall we're back in action View attachment 173928
Ouch...So your plane kissed something before you did?
No - he kissed his old simple stick goodbye before the new one was born...So your plane kissed something before you did?
I did get it sorted, a second attempt confirmed it was way to nose heavy. I had to push the battery all the way to the back to get it to even stabilize enough for flight. Second is it has a killer tip stall, even at high speed any reasonable lean into a roll will pull it straight to a dive.@BATTLEAXE - just wondering if you figured it out. Curious minds want to know.
Not sure on the thrust for that one. Put a 36x36 prop (not to be confused with a 36x3.6 prop) on it and see. "should" have enough torque to spin it and find out.SO... Crashed the HVAC blower today. Some disassembly required. Oh for the good old days where they actually put oil ports on the bearing caps instead of calling them permanently lubricated so they can sell you a whole motor or furnace when the permanent lubrication dries up. Some disassembly and re-assembly required.
SHUT OFF BREAKER! Pull main board. pull blower assembly. loosten squirrel-cage. pull motor, remove motor mounts, pull bearing caps, work oil in to loosen up all the dried up crud then clean, repeat oiling and clean, repeat oiling and clean, relube the felt pads, put the bearing caps back on, and reverse disassembly. WOnder how much thrust this thing has......
View attachment 173932
Cheers!
LitterBug
Yeah the flight started at slightly nose heavy at 25%, so i expected to have to use speed to stay afloat. I balanced it to fly on the 33% CG mark with it level and not slightly nose heavy. Even with the battery shoved completely under the wing it still needed good speed. This would be the combined inefficiency with the wing. Wing tip fences, just like on my original Kitfox, will help prevent spillage and act like an under camber tip to be the last part of the wing to stall. I will see how well that works and then maybe add VG's to the last 3-4 inches of the wing tips as wellInteresting...from the video I would have thought it was tail heavy. So you had to move the battery back behind say 30% of chord? You said you balanced it before flying and I'm guessing 25 - 35% of chord. So if it was way nose heavy that would mean that the CG would move back past 35% of chord. I was under the impression most conventional planes don't fly that way.
Your solutions sound reasonable. Yeah it shouldn't need dihedral and I don't think that would solve the current instability.
Can't wait till that thing flies as great as it looks!Yeah the flight started at slightly nose heavy at 25%, so i expected to have to use speed to stay afloat. I balanced it to fly on the 33% CG mark with it level and not slightly nose heavy. Even with the battery shoved completely under the wing it still needed good speed. This would be the combined inefficiency with the wing. Wing tip fences, just like on my original Kitfox, will help prevent spillage and act like an under camber tip to be the last part of the wing to stall. I will see how well that works and then maybe add VG's to the last 3-4 inches of the wing tips as well
This next one will have plans, working on those now. Gonna try to add some STL files to it for some aesthetic treatments. It will be an experimental process, but i will dial it inCan't wait till that thing flies as great as it looks!