Has the ejection force from radial decouplers been nerfed?

[Dizzle]

It seems in this update like spent stages don't push off like they used to. Now they just seem to fall away, or often, fall INTO my central stack. This is usually fixable with sepatrons, but I'm just wondering if the parts themselves have been changed.

Edit: I do have a number of mods installed, not sure if any of them make a difference.

Edited September 5, 2014 by Dizzle

[Tery215]

I think it's a bug with 64-bit version.

[Kasuha]

Yes, there is a bug in the latest release which causes decouplers to stop in space during decoupling (if the rocket moves below 750 m/s), thus giving the attached booster relatively strong impulse turning its top towards the rocket.

Probably the best workaround is to mount them to the very top of the booster using some separate part to which is the body of the booster attached from below. That prevents the booster turning towards the rocket.

Edit: it may be a good idea to use sepatrons, too.

Edited September 5, 2014 by Kasuha

[Caelib]

I'm glad to see this thread because I thought I was doing something wrong and I couldn't figure out what ... the radials have been causing a seriously-weak ejection and spinning.

[magico13]

It is a known issue listed in the Cross Platform Issues thread which has a fix (if you're willing to do some config edits). Here is the fix btw: http://forum.kerbalspaceprogram.com/threads/88026-Radial-Decouplers-3-75m-Decoupler-Issues-%28Return-of-the-Kraken-0-24-2%29?p=1332126&viewfull=1#post1332126

[SorryDave]

It is not you mods, I noticed it as well

[Kasuha]

I made a simple comparison of the booster behavior for top and center mounting on the decoupler. Notice the left decoupler does not touch the rocket, it is destroyed by the right one.

Both boosters have an empty fuel tank on top - the left one uses it as a mount point for the decoupler, the right one has it only for balance.

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[tater]

Wow, I have had so many kerbaltastic failures do to that so far it's not even funny.

[tg626]

Question is, where is the com of the empty srb?

[cantab]

Same place as the full SRB, which is in the middle or near enough. I'm pretty sure the part configs have no way to express the resources not being aligned with the CoM.

[TimberWolffe]

I just tweaked the decoupler .cfg so it blasts them apart with the separative force of 700

[I_Killed_Jeb]

if you can spare the partcount i've always loved the way separatrons accelerate boosters outwards

[Aragosnat]

Another thing to mention is.. Instead of using separatrons to push the debris away. One can simply point the thruster end towards the object smashing into center stack problem child. Yeah on the ejection force is almost non-existant. Except when the part is light enough. Which is rare for most of us.

Another thing to try if you don't want to play with fire is try the winglets and angle them so they lift away. Again. Only do so if you can afford the extra cost, parts and able to mount them without clipping into something.