sorry for your lost but 8ft wing with 70mm EDF twin...just too much drag.. Maybe a 90mm twin EDF would allow you more success. Hope you won't give up.
That is really good! Great job man. It did look a wee tail heavy too I think?
Having it even nose heavy on these helps so much. Not only for pitch and roll stability but it forces you to fly with some up-trim which adds drag in the back which adds to yaw stability. Especially if you have just the inboard elevators set to up trim.
It had a Clark Y airfoil. It didn't need a KF. The reason it was not stable is because I did not open the drag rudders enough to keep the rear from sliding out.
Yeah, sorry, but no new one. That thing was a tough one to build, and too many other projects to have fun with!
What I mean by the rear end sliding out is when the plane Yawed hard and crashed, you can see the back of the plane whipped out from an uncontrolled yaw moment. This is from inadequate yaw stability, both from the lack of large enough vertical stabs and/or the drag rudders were not open enough to add drag at the very back of the plane to keep it tracking straight.
Actually my dad and me built one and powered by a .60 OS engine in the middle wing. It was a frustration since we did not have the drag rudders. Just a simple aileron and elevators. Though, the B-2 we made was a killer-look. I'll be happy to send you how its looks, just let me know.
yep...it looked real good man...to badit didn't work....im making a scratchbuild EDF to ,looks kinda like the Salamander wirh one bigole fan on the roof of the plane..
U mad stal !
danne6a 4 months ago
go 120 mm 12s it should work
MinfangDuan 9 months ago
sorry for your lost but 8ft wing with 70mm EDF twin...just too much drag.. Maybe a 90mm twin EDF would allow you more success. Hope you won't give up.
starscreamer47 10 months ago
That is really good! Great job man. It did look a wee tail heavy too I think?
Having it even nose heavy on these helps so much. Not only for pitch and roll stability but it forces you to fly with some up-trim which adds drag in the back which adds to yaw stability. Especially if you have just the inboard elevators set to up trim.
All in all though, that plane is super well done.
RCSuperPowers 1 year ago
Were your drag rudders connected to servo's or fixed? It was almost there but the yaw got the better of you. NIce work. you were almost there dude.
Cjudd001 1 year ago
@Cjudd001
Thanks! Drag rudders were servo actuated.
kwahyttam 1 year ago
need more kv and bigger discharge battery and more mils
F35JSF1 1 year ago
One small note. It flew good, straight and level. In a turn, she stalled.
Yes, underpowered.
EDFs are not very efficeint. Maybe swinging a big prop would have worked.
It was so pretty, excellent taxi.
Im sure you learned a lot during the build.
buzz60016 2 years ago
I guess it would be stable with a KF airfoil.
ybrik5 2 years ago
It had a Clark Y airfoil. It didn't need a KF. The reason it was not stable is because I did not open the drag rudders enough to keep the rear from sliding out.
kwahyttam 2 years ago
I see. Did you ever make one again? We really want to see it fly. =) btw, what do you mean by "to keep the rear from sliding out"?
ybrik5 2 years ago
Yeah, sorry, but no new one. That thing was a tough one to build, and too many other projects to have fun with!
What I mean by the rear end sliding out is when the plane Yawed hard and crashed, you can see the back of the plane whipped out from an uncontrolled yaw moment. This is from inadequate yaw stability, both from the lack of large enough vertical stabs and/or the drag rudders were not open enough to add drag at the very back of the plane to keep it tracking straight.
kwahyttam 2 years ago
Actually my dad and me built one and powered by a .60 OS engine in the middle wing. It was a frustration since we did not have the drag rudders. Just a simple aileron and elevators. Though, the B-2 we made was a killer-look. I'll be happy to send you how its looks, just let me know.
ybrik5 2 years ago
Well done man...u got it in the air and flying!!!..but like u said it was a little underpowered...too bad man...most impressive build there ...5*
Jacques
jacquesone100 2 years ago
Thanks, I was hoping for a better flight, but proof of concept was there.
kwahyttam 2 years ago
yep...it looked real good man...to badit didn't work....im making a scratchbuild EDF to ,looks kinda like the Salamander wirh one bigole fan on the roof of the plane..
good luck on your future builds :)
Jacques
jacquesone100 2 years ago
Impressive build. Very nice
The time and expense, does not always end and we would have wished.
It is not failure, but a learning experience.
1400 watts is enough power.
Id guess a ligher build.
Tricky - strong enough to stay together, light enough to fly.
Great 3 part video, thank you for posting.
buzz60016 2 years ago
I agree, it would fly with more power, it just stalls
jeflatt 2 years ago
you should resurrect it. put some better motors in that
it has VERY good potential
frederic470 2 years ago
man !! It looked so nice!!
DanielMadrigalC 2 years ago
I like coke!!
LOLDISNEYLAND 2 years ago
Me too?
kwahyttam 2 years ago