FAR - So why do planes bounce so much

[RTK]

Hi,

Just wondering if it is normal a plane regardless of how small and rigid the design is that they appear to bounce so much? just recently this issue continues to plague me for all plane designs regardless or how small or rigid they are in .25 KSP with FAR.

Not sure if it is an issue with installation or what, not a great deal of time to go through thousands of pages of text either.

cheers

[ferram4]

They don't, unless they impact something.

Planes can be unstable, in which case they won't be controllable.

Planes can be wobbly, in which case, they will wobble back and forth.

But if your planes are bouncing, that means that you're either hitting something hard enough that they bounce off. No other explanation. Unless of course, you're using "bounce" as a shorthand for some more complicated problem, but in that case no one can help you until you actually describe the problem.

[KerikBalm]

Well, I'd say its a lack of shock absorbers on the landing gear.

Planes really would bounce quite a bit if their landing gear were perfectly rigid.

[Wanderfound]

You may be talking about landing (in which case, reduce your sink rate), but I suspect you're talking about SAS wobbles.

In that case, get a mod that includes a PID tuner (this lets you de-wobble an SAS) or turn off the SAS and turn on the flight assistance toggles provided by FAR, and be prepared to fly with a bit more active involvement unless you tune them super-tight.

[peachoftree]

You may be talking about landing (in which case, reduce your sink rate), but I suspect you're talking about SAS wobbles.

In that case, get a mod that includes a PID tuner (this lets you de-wobble an SAS) or turn off the SAS and turn on the flight assistance toggles provided by FAR, and be prepared to fly with a bit more active involvement unless you tune them super-tight.

What is a mod that includes a pid tuner? This would be a really nice thing to have.

[RTK]

no one mentioned landing if one was to bounce during landing well the answers are obvious. I know about the noodle effect hence why it is a rigid design or even very small...guess I should have mentioned I have clocked over 500hrs majority building planes, I may not be using the correct terms that is I actually have a life outside of KSP.

assumptions are a bad habit and even harder to break.

[Alshain]

no one mentioned landing if one was to bounce during landing well the answers are obvious.

Then what do you mean by "bouncing"?

bounce

verb

verb: bounce; 3rd person present: bounces; past tense: bounced; past participle: bounced; gerund or present participle: bouncing

1.

(of an object, especially a ball) move quickly up, back, or away from a surface after hitting it; rebound (once or repeatedly).

Are you bouncing off something in the air? Really the only times a plane can bounce is take off or landing. I've never heard of a plane bouncing on take off so that leaves landing. Lose the attitude and you might get more help, there is a difference between assumption and educated deduction.

[velve]

no one mentioned landing if one was to bounce during landing well the answers are obvious. I know about the noodle effect hence why it is a rigid design or even very small...guess I should have mentioned I have clocked over 500hrs majority building planes, I may not be using the correct terms that is I actually have a life outside of KSP.

assumptions are a bad habit and even harder to break.

So you decided to read the replies of people actually trying to help you and understand your problem, only to come back to post a reply that I'm pretty sure has alienated anyone interested in helping you finding a solution, without adding any new relevant information.

Well done.

@peachoftree, have a look at this mod http://help.howproblemsolution.com/500957/plugin-0-25-pilot-assistant-0-1-nov-14-on-kerbal-space-program

Appears to indluce PID tuning of some sort.

[Wanderfound]

What is a mod that includes a pid tuner? This would be a really nice thing to have.

Here's one: http://forum.kerbalspaceprogram.com/threads/100073-0-25-Pilot-Assistant-0-6-Nov-20-Atmospheric-piloting-aids

[cantab]

If it's SAS oscillation, then yeah, my answer is "Don't use SAS". IMHO it's awful to fly planes with. When turning an aircraft you should bank and let the plane turn itself, and SAS prevents that. In level flight it's liable to cross-control the plane slightly - you'll be rolled left and yawing right to compensate. Even in stock that means you'll have a small cosine loss on the engine thrust and in FAR it'll increase drag too.

I use pitch trim (Mod+W/S) to maintain a steady altitude, and build in roll stability or/and use FAR's wing leveller to keep the plane straight.