Great to see another video from you man! I have one suggestion - stick the rimfire on it and see if it flies!
Edit: just read your comment and looks like you got it figured out!
What did you crash today
- Thread starter Damig
- Start date
Edit: just read your comment and looks like you got it figured out!
whackflyer
Master member
That's the way all Kitfoxes are, they have suspended flaperons. They should be parallel to the bottom surface of the wing.
mayan
Legendary member
I see than in that case I just think it’s under powered.
Crawford Bros. Aeroplanes
Legendary member
Tell it not to do that
Grifflyer
WWII fanatic
So your plane kissed something before you did?
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......
Cheers!
LitterBug
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......
Cheers!
LitterBug
Aireal Anarchist
Elite member
I did everything wrong today
I installed a sparrow flight controller in a versa wing to test the sparrow FC, weather and work have prevented me from flying for 3 weeks and I was too excited and didnt check the CG after adding the flight controller, so it went badly out of control and headed for the ground and I let it go down since it wasnt too high and things could get worse if I try to get controll.....next problem is I thought I installed the lost model finder I just bought for it but I did not aagain too excited to go fly to remember, the grass is 5ft tall and now I need to get my drone and find it before high tide and it gets all wet.....
check your crap..... ha!
I installed a sparrow flight controller in a versa wing to test the sparrow FC, weather and work have prevented me from flying for 3 weeks and I was too excited and didnt check the CG after adding the flight controller, so it went badly out of control and headed for the ground and I let it go down since it wasnt too high and things could get worse if I try to get controll.....next problem is I thought I installed the lost model finder I just bought for it but I did not aagain too excited to go fly to remember, the grass is 5ft tall and now I need to get my drone and find it before high tide and it gets all wet.....
check your crap..... ha!
"Corpse"
Legendary member
Ouch...
No - he kissed his old simple stick goodbye before the new one was born...
danskis
Master member
@BATTLEAXE - just wondering if you figured it out. Curious minds want to know.
BATTLEAXE
Legendary member
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.
Solutions. Extend the tail by about 10-15% and expand the tail control surfaces by the same amount, this should help it balance better and have more authority. This will also allow the battery to come forward some to better get the balance dialed in. Second is to go back to having the wing tip fences to take advantage of the full wing span. This should help slow the plane down and maintain the STOL characteristics. I could add some dihedral but i do want to avoid that. I would like to expand the wing some to lighten the wing loading.
danskis
Master member
Interesting...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.
Your solutions sound reasonable. Yeah it shouldn't need dihedral and I don't think that would solve the current instability.
PsyBorg
Wake up! Time to fly!
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.
BATTLEAXE
Legendary member
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
"Corpse"
Legendary member
Can't wait till that thing flies as great as it looks!
BATTLEAXE
Legendary member
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 in
Innaviation
Well-known member
Well, second official crash of my first quad.
Is it normal to be crashing a drone this much?
Is it normal to be crashing a drone this much?
Similar threads
