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Bug #9460

Counteracting elevon orientation due to faulty angle dependency

Added by Anonymous almost 9 years ago. Updated almost 9 years ago.

Status:
Duplicate
Severity:
Normal
Assignee:
-
Category:
Controls and UI
Target version:
-
Start date:
04/24/2016
% Done:

100%

Version:
1.1.0
Platform:
Windows
Expansion:
Language:
English (US)
Mod Related:
No
Votes:
Arrow u r green
Arrow d r red

Description

This is a follow-up to the issue here:

http://bugs.kerbalspaceprogram.com/issues/9407#change-42881

I now know what causes the elevons to counteract on wings:

Depending on how they are rotated with regard to the crafts long axis some are steering up and some are steering down.

The CoM has nothing to do with it. This was probably a mechanic introduced to solve this issue here:

http://bugs.kerbalspaceprogram.com/issues/5172

You still might want to think about my other suggestion in the original thread, namely that not the position of the pivot axis should be dicisive how to steer, this would avoid some borderline cases. And possibly the option to remove CoM dependency for some elevons to allow for full manual override.

Furion.craft (268 KB) Furion.craft [email protected] Anonymous, 04/24/2016 08:43 AM
Spirit [Strategic].craft (158 KB) Spirit [Strategic].craft [email protected] Anonymous, 04/24/2016 08:43 AM
Furion - rotated.jpg (292 KB) Furion - rotated.jpg rotated by 90° - correctly acting elevons Anonymous, 04/24/2016 08:43 AM
Spirit - original.jpg (246 KB) Spirit - original.jpg normal rotation - counteracting elevons Anonymous, 04/24/2016 08:43 AM
Furion - orignal.jpg (309 KB) Furion - orignal.jpg normal rotation - counteracting elevons Anonymous, 04/24/2016 08:43 AM
Spirit - rotated.jpg (244 KB) Spirit - rotated.jpg rotated by 90° - correctly acting elevons Anonymous, 04/24/2016 08:43 AM
-A- before CoM.jpg (261 KB) -A- before CoM.jpg normal Anonymous, 04/24/2016 10:08 AM
-A- behind CoM - CoL closer to CoM 1.jpg (256 KB) -A- behind CoM - CoL closer to CoM 1.jpg counteracting Anonymous, 04/24/2016 10:09 AM
-A- behind CoM - CoL closer to CoM 2.jpg (387 KB) -A- behind CoM - CoL closer to CoM 2.jpg counteracting Anonymous, 04/24/2016 10:09 AM
-A- behind CoM - CoL farther from CoM 1.jpg (368 KB) -A- behind CoM - CoL farther from CoM 1.jpg normal Anonymous, 04/24/2016 10:09 AM
-A- behind CoM - CoL farther from CoM 2.jpg (243 KB) -A- behind CoM - CoL farther from CoM 2.jpg normal Anonymous, 04/24/2016 10:09 AM
-B- before CoM 1.jpg (268 KB) -B- before CoM 1.jpg normal Anonymous, 04/24/2016 10:10 AM
-B- behind CoM - CoL closer to CoM 1.jpg (271 KB) -B- behind CoM - CoL closer to CoM 1.jpg counteracting Anonymous, 04/24/2016 10:10 AM
-B- behind CoM - CoL closer to CoM 2.jpg (385 KB) -B- behind CoM - CoL closer to CoM 2.jpg counteracting Anonymous, 04/24/2016 10:10 AM
-B- behind CoM - CoL farther from CoM 1.jpg (260 KB) -B- behind CoM - CoL farther from CoM 1.jpg normal Anonymous, 04/24/2016 10:10 AM
-B- behind CoM - CoL farther from CoM 2.jpg (384 KB) -B- behind CoM - CoL farther from CoM 2.jpg normal Anonymous, 04/24/2016 10:11 AM
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History

#1 Updated by Anonymous almost 9 years ago

Minor edit: Of course the elevons on the Furion craft were rotated by less than 90°.

#2 Updated by Anonymous almost 9 years ago

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An update on the CoM dependency:

This issue occurs especially for large wing constructs and indeed it seems to be related to flying wing designs.

Notice for the two example crafts how the bug shows up, when the CoL is behind the CoM, but relatively close, even when the affected elevons are behind the CoM.

(I used the offset tools, so maybe it is related to that.)

#3 Updated by sal_vager almost 9 years ago

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

This is a duplicate of issue #9407

#4 Updated by Anonymous almost 9 years ago

Imho it's not a duplicate, but it's your call.

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