darkmx5
hi everyone, great site .
 I purchaced plans for the V5 eurofighter and SU35, built both. I purchaced parts from hobby king
3 2200mAh batteries ( Rhino)  177 g
2 Areostar 30 amp ESC
Areostar 6x4 cw props

also sources out these parts from various vendor
D2826-6 brushless motors 3 in total
more 6x4 props

I have built 1 euro fighter V5, 2 SU35 V5 and a F35 V3 all have had the same issues
 i used the instruction on how to build them and used dollar tree foam board, all were balanced with center of gravity marks

 after take off the slowly climb to maybe 10-15 feet (highest was 20) nose is  pointing upwards with no elevator input,  if i try to  turn the plane ( ailerons) it dives ( only small inputs) if I try to level it out it dives.  i turned down the rates on the servos and same effect.

at this point I am thinking plane is too heavy or motor /motors are not strong enought.. maybe I should try a 1300 or 1500mah battery to lighten the planes.

any help would be great thanks
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solentlife
Sounds like they are stalling.... basically not enough speed ..... but without a video or actually seeing them ... difficult to say.

At launch - if elevators are trimmed UP ... this creates drag and slows down the acceleration and model can fail to reach decent speed. moment you try to turn - lift reduces, down she goes.  

I assume the LiPo's are 3 cell ? 2200 Rhinos ? May be a bit on the heavy side ... but I'll let others comment on that.

The 2826 motors ? 2200KV ?? If anything less KV on 6x4 then 3S will not be enough.
I'll fly anything if I can launch it ! Youtube : solentlifeuk
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Yinaaa
Hey I feel you man, I was in a similar situation so here's my story, hope it helps.
I started building foamies 5 years ago and since I've been struggling to fly them, something didn't seem right. The jets were straight, the weights were on point and so was the hardware. At some point I decided I needed to learn how to fly a noob friendly plane, so I ordered a skysurfer x8 (bixler knockoff from aliexpress) and moved all the electronics to it. I still continued crashing in small parks because I was trying to fly low and slow - that was a bad strategy.
About a month ago I took the plane to a big open field, opened full throttle and gained altitude and it flew great.
I'm a massive pleb who likes traps
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Grabiel
Muy buenos
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mastermalpass086
When I first flew my Su-34 V, I was surrounded by trees and was unintentionally high-alpha-ing around. I was a little shy of pushing the throttle to max then (I still am now). The Su-35 is a more sleek and needs either deliberate speed or mote deliberate high-alpha (though my Su-35 has a KF-4 airfoil rather than a KF-2).

How steep is your plane launching? I find they climb fine at 30º - 45º but steeper than that you will want a 4-blade prop and maybe more amps on the ESC. I found that when in a stall, if you push on the roll input the plane will seemingly not respond at first then suddenly dart down as the torque-roll knocks it and the roll input carries it over. Pushing down on the elevator can be a bit unnerving but I find I need to do it often to maintain stability at lower speeds.
BRB - Building another nosecone.
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Dodgy Crasher
I'm going to go with Solent on this one, it sounds like a stall, you need to power the plane up, it should fly out your hand, rear pusher prop planes need to be launched with as little throttle as possible to stop torque roll but the RCP mid mount planes have very little even at full power take offs , I use more powerfull motors than you have fitted, same props, but I use 40 and 50 amp esc's, I also fly pretty much everything on 2200 3s rhino lipos with no effect on performance.
You have not fitted a gyro receiver by any chance ??? if they are not set up correctly it can have some really bad effects.
Also are your control surfaces all working in the intended directions and on the proper sticks, looking from the back of the plane the left aileron goes up and the right goes down to turn left, the elevator lifts up to go up.
Make sure you have an equal spread of movement each side of the neutral position which should be basically flat with the surface it's mounted too, aileron-wing , elevator on horizontal stabiliser.
If all that fails take a video on a phone and post it on here there are plenty of guys on this site who will see your problem, power the plane up and post some photo's of elevator, ailerons in the powered up but you not doing anything position too.
Oh and I'm not being smart with my answers, you don't say whether you are totally new to flying or not so I'm assuming you are.
Good luck and do not give up, it's all a learning curve worth doing as it's such a relaxing hobby once you master it.
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JettaManDan
need to make sure your prop is spinning and facing the right way..it catches a lot of people out. 2200kv motor and a 6x4 prop with a decent battery..even a heavy 2200mah battery should provide tons of thrust. That plus the radio setup to push the control surfaces the right way.
My YouTube Channel - 250+ Video's! http://www.youtube.com/jettamandan09

I'm an R/C Junkie! 40+ planes - 12 Heli's - 6 multirotors - and ground vehicles galore! I've got issues.
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JettaManDan
Make sure your prop looks like this if the jet is a pusher style...

  20200901_145924.jpg  20200901_145935.jpg 
My YouTube Channel - 250+ Video's! http://www.youtube.com/jettamandan09

I'm an R/C Junkie! 40+ planes - 12 Heli's - 6 multirotors - and ground vehicles galore! I've got issues.
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JettaManDan
also you need a elevon mix for the control surfaces...let us know your radio and setup so we can help more.
My YouTube Channel - 250+ Video's! http://www.youtube.com/jettamandan09

I'm an R/C Junkie! 40+ planes - 12 Heli's - 6 multirotors - and ground vehicles galore! I've got issues.
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darkmx5
Thanks everyone, i fixed my F35 v3, reduced the rates to 50%,  check the prop and yes was backwards.
 took her out and she flew, i launched it at about 30 deg, and let the plane get some speed. flew for over 5 minutes, did some rolls bu accident but  it was nice to fly.  seemed to have alot more thrust.
 i was cruising round tabout 50-60 % throttle. i was flying around dusk, and lost orientation after a turn and didn't see i was inverted my fault plane is all white, when to climb  but went downwards. I panicked and crashed. but still had a smile on my face it was flying and flying well..  pilot need way more practice..
thanks everyone.. started building a euro fighter when i got home lol.. cant wait.
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solentlife
Good to hear things flew ... sad about crash ... but lack of contrast colours and dusk flying is a recipe for disaster ! As is flying on a bright cloudless day or against a total grey sky ... each has its faults !! 

I fly a profile Eurofighter and I love it !! One day I may build the full fuselage version when this profile one has run its life !
I'll fly anything if I can launch it ! Youtube : solentlifeuk
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JettaManDan
very glad you got it worked out. The prop rotation will get you every time! i went away from realistic paint schemes and did contrast on top and bottom and even right and left so i know which way the plane is going. All white is a ground dart waiting to happen! lol
My YouTube Channel - 250+ Video's! http://www.youtube.com/jettamandan09

I'm an R/C Junkie! 40+ planes - 12 Heli's - 6 multirotors - and ground vehicles galore! I've got issues.
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SukhoiLover
“Ground dart?” Please . . . Lawn Dart. What are we, barbarians?

Congrats on getting sorted out with your new obsession.
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lysle42
jettmandan does it again, you have helped a lot of pilots, you the man dan
Homer
<'(((><
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JettaManDan
lysle42 wrote:
jettmandan does it again, you have helped a lot of pilots, you the man dan


thanks very much for the kudos. Been on RCP for a very long time. I've had ALL of the newbie troubles! Backward props..backward control movements...too much power..too little lower...too much weight...too much glue 😉 and even having a plane set itself on fire! So..if i can save even one person from giving up..i'm super happy.
My YouTube Channel - 250+ Video's! http://www.youtube.com/jettamandan09

I'm an R/C Junkie! 40+ planes - 12 Heli's - 6 multirotors - and ground vehicles galore! I've got issues.
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