[1.2] Plane violently yaws to the left no matter what

[i like turtles]

Hello!

So I've made a B-2 Bomber Replica(sort of) and when I fly it, it violently yaws to the left. Here were my speculations

Landing gear at an angle: The yawing continues even when flying

Assymetrical Mass/Lift/Thrust: CoM, CoL, CoT are lined up perfectly, thrust of engines are even throughout the flight

No tail fins resulting in sideslip: The yawing continued even when i put 2 big delta wings as tailfins

Gif of yawing: https://imgflip.com/gif/1ddstx

Pics: http://imgur.com/gallery/Mxl9S

[OddFunction]

Did you disable steering on the rear wheels? And enable it only on the front wheels?

[sal_vager]

Flying wings are a little tricky in KSP, I've been making them as well, and it only takes a tiny imbalance to make them yaw just like in the pic, even floating point rounding will cause it.

You will need to hide at least one vertical stabilizer on the craft behind the CoM or this will continue, you have some fuselage there so you can squeeze a wing strake or a structural wind D in there.

Moved to Gameplay Questions as this is a design issue.

[Jarin]

With the severity of that turn, it really looks like the left engine nacelle is having its thrust blocked. This can happen even with symmetry, I've found. Try removing just the parts behind the engines and test-fly to see if it still has the problem (obviously this isn't a final solution, just troubleshooting).

[Sharpy]

You have a total zero of any vertical control surfaces. The plane, wide, short, is less draggy sideways than straight ahead, so it obviously it turns! Add some tail fins for goodness sake!

[i like turtles]

@OddFunction I only tried disabling steering on all wheels, so I'll try that

 

for some reason tagging isn't working so i'll just quote

On 11/2/2016 at 8:33 PM, sal_vager said:

Flying wings are a little tricky in KSP, I've been making them as well, and it only takes a tiny imbalance to make them yaw just like in the pic, even floating point rounding will cause it.

You will need to hide at least one vertical stabilizer on the craft behind the CoM or this will continue, you have some fuselage there so you can squeeze a wing strake or a structural wind D in there.

Moved to Gameplay Questions as this is a design issue.

I tries some vertical flaps hidden in the fuselage as i'm trying to make this look as realistic as possible(i know, doesn't really look like the real thing does it)

On 11/3/2016 at 0:32 AM, Sharpy said:

You have a total zero of any vertical control surfaces. The plane, wide, short, is less draggy sideways than straight ahead, so it obviously it turns! Add some tail fins for goodness sake!

I have some in the fuselage, but it may not be enough though. It does have great yaw control besides the intense left yawing. It's able to fight back if I hold down 'D' but it spins out to the right then the left.

On 11/2/2016 at 11:24 PM, Jarin said:

With the severity of that turn, it really looks like the left engine nacelle is having its thrust blocked. This can happen even with symmetry, I've found. Try removing just the parts behind the engines and test-fly to see if it still has the problem (obviously this isn't a final solution, just troubleshooting).

I'll try that too.

[sal_vager]

If you'd like we could try fixing it up for you, can you post the craft file?

[NSEP]

Add tail wings, facing vertically.

Edited November 4, 2016 by NSEP

[i like turtles]

Turns out the thrust was blocked on the left. but not the right(weird idk why). I took out the whole engine part(intake, adapters etc) and placed them again and works fine now. Thanks!

https://imgflip.com/gif/1dix24 

[Jarin]

Glad to know I wasn't blind. I've seen some weird veering from landing gear, but never anything that severe. 

Would also second @sal_vager here, asking for the craft file. But that's purely for my own amusement. That looks great and I want to play with it.

[i like turtles]

@Jarin I will be uploading it on the spacecraft exchange so be sure to look out for that! Will post a link to the thread.

Edited November 6, 2016 by i like turtles

[i like turtles]

@Jarin

I made some adjustments with the engines. If I used the panther engine the thrust is random so if i fly it one day it works another day it doesn't even though i made no changes. So I changed them to juno engines