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Feature #370

ASAS should use rate mode instead of position mode

Added by triffid_hunter about 11 years ago. Updated over 10 years ago.

Status:
Closed
Severity:
Normal
Assignee:
-
Category:
Physics
Target version:
-
% Done:

100%

Platform:
Windows
Expansion:
Mod Related:
No
Votes:
Arrow u r green
Arrow d r red

Description

Currently, due to ASAS using position mode, it shakes my kerbals like a dog toy. This is inherent to using position mode, it is not specific to KSP.

The issue occurs because when we reach the ASAS target position we still have heaps of stored momentum which throws us beyond the target, causing an orbit-like oscillation.

MechJeb's Smart A.S.S. appears to use rate mode with great effect, but unfortunately it turns on ASAS when close to the target and the shaking resumes.

One way to ameliorate the shaking is by turning ASAS off just after the direction changes, then turn it on-off-on at the target such that it zeroes the momentum then holds the position. Another alternative is to (ab)use time acceleration to cancel rotational momentum.

History

#1 Updated by hermes47 about 11 years ago

  • Target version deleted (0.18.4)
  • Version set to 0.18.4

Please do not set target version.

#2 Updated by sr over 10 years ago

  • Platform Windows added

Can we consider this ticket resolved with the SAS changes in 0.21?

#3 Updated by triffid_hunter over 10 years ago

sure, I'll open another if SAS goes silly again..

I can't seem to close this ticket for some reason; and pretty sure it wasn't windows specific

#4 Updated by sr over 10 years ago

  • Status changed from New to Closed
  • % Done changed from 0 to 100

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