What is the difference between 'ASAS' and 'SAS'?

[El wonso]

These two seem to have identical functionality, but the 'ASAS' is 66% heavier. Why?

[redmario14]

I'm pretty sure the SAS only helps to keep your craft stable and such, while the ASAS also utilizes any fins, rcs or gimbaling engines onboard to keep the craft steady. It only uses rcs if you have that turned on though.

[stupid_chris]

There's no "ASAS" now, it's just the SAS module.

Basically, what used to be the old small ASAS module is just the SAS flight assistance module with a reaction wheel, while the old SAS is now just a reaction wheel.

EDIT: Since there seem to be a lot of confusion, here's a link to help you guys understand better.

Basically, the SAS module does the job of the old ASAS module, it uses gimbals, RCS, control surface and pod torque to steer your ship. The control wheels just provide more torque.

[vidboi]

There's no "ASAS" now, it's just the SAS module.

Basically, what used to be the old small ASAS module is just the SAS flight assistance module with a reaction wheel, while the old SAS is now just a reaction wheel.

EDIT: Since there seem to be a lot of confusion, here's a link to help you guys understand better.

Basically, the SAS module does the job of the old ASAS module, it uses gimbals, RCS, control surface and pod torque to steer your ship. The control wheels just provide more torque.

Actually that's not quite correct, ASAS does still exist (albeit in an updated form) it's just called SAS now and is included by default in all command pods and probes. What was called SAS (which only served to slow rotation before itself, not keep a heading using all available control features like the old ASAS and the new SAS) no longer exists, and the model has been repurposed as additional reaction wheels to provide extra control over your craft. Given that all craft with a pod have ASAS/SAS features already built in, the SAS module is unnecessary for it's extra weight.

[stupid_chris]

Actually that's not quite correct, ASAS does still exist (albeit in an updated form) it's just called SAS now and is included by default in all command pods and probes. What was called SAS (which only served to slow rotation before itself, not keep a heading using all available control features like the old ASAS and the new SAS) no longer exists, and the model has been repurposed as additional reaction wheels to provide extra control over your craft. Given that all craft with a pod have ASAS/SAS features already built in, the SAS module is unnecessary for it's extra weight.

That's exactly what I said. ASAS is now called SAS and that's all.

[El wonso]

So:

Every pod has some reaction wheels and built in computer (like old asas).

Inline reaction wheel (former sas) has stronger reaction wheels.

Inline Advanced Stabilizer (former asas) has equally powerful reaction wheels and... what? Nothing?

[stupid_chris]

Both the old ASAS now have reaction wheels, and the ability to give the new SAS control to a rocket... and since all command parts now have it, excepted the seat, that's rather useless.