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Bug #20682

landing gear kick back when fully compressed

Added by Anonymous about 6 years ago. Updated almost 5 years ago.

Status:
Closed
Severity:
Low
Assignee:
-
Category:
Physics
Target version:
1.7.2
Start date:
12/16/2018
% Done:

100%

Version:
1.6.0
Platform:
Linux, Windows
Expansion:
Core Game
Language:
English (US)
Mod Related:
No
Votes:
Arrow u r green
Arrow d r red

Description

1) Start the scenario "Exploring Gilly"
2) switch to the larger craft 'JulesVerne'
3) hold A and S to tip the craft 30° onto one leg
4) let the craft stabilize, the strut auto-adjusts to hold the weight
5) hold W and D to tip the craft in 30° in the opposite direction
The new landing leg had been unloaded, and seems to have spring and damper adjusted downwards.
The momentum of the craft rotating onto the leg compresses it fully, and when it hits the stop the leg kicks back enough to launch the craft 10m/s

I do not think anyone is having difficulty landing on Gilly; the light gravity merely makes strange behavior slower and easier to see. The user annoyance from this would be if it is a mechanism for the jittery style of wheel bouncing.

The configuration useAutoBoost=false removes the kick, and was also helpful with a real users's jittery bouncing (see mod at https://github.com/pilnomi/KillBob)

kick.jpg (53.7 KB) kick.jpg [email protected] Anonymous, 12/16/2018 01:01 AM
Kick Back Bug Default.craft (23.8 KB) Kick Back Bug Default.craft [email protected] Anth12, 12/25/2018 01:02 PM
Landing Leg Kick Back Bug.sfs (57.1 KB) Landing Leg Kick Back Bug.sfs [email protected] Anth12, 12/25/2018 01:04 PM
Kick Back Bug Work Around.craft (32.9 KB) Kick Back Bug Work Around.craft [email protected] Anth12, 12/25/2018 01:44 PM
Landing Leg Kick Back Work Around.sfs (68.7 KB) Landing Leg Kick Back Work Around.sfs [email protected] Anth12, 12/25/2018 02:33 PM
screenshot1105.png (2.34 MB) screenshot1105.png Going flying in 1.6.1 Nebbie, 01/12/2019 09:27 AM
40430
40974

History

#1 Updated by Anth12 almost 6 years ago

Issue Confirmed in first video:

https://youtu.be/CDWruOHL8RM

Landing Leg Kick Back Bug.sfs and Kick Back Bug Default.craft were used for the first video.

Possible Work Around:
1. Limit the legs ranges to stop moving to maximum compression point somehow via code or colliders
2. Have some sort of deadzone like a steering wheel where the kickback would normally activate

Second Video shows a work around using the craft file: Kick Back Bug Work Around.craft

https://youtu.be/Dxw-K28vLOE

Landing Leg Kick Back Work Around.sfs was used for second video.

#2 Updated by Anth12 almost 6 years ago

I thought I had set this to 1.6.0 which I now cant

#3 Updated by Anth12 almost 6 years ago

  • Subject changed from landing gear kick back when fully compressed to landing gear kick back when fully compressed (Please update to 1.6.)

#4 Updated by joshua.collins almost 6 years ago

  • Version changed from 1.5.1 to 1.6.0

#5 Updated by Anth12 almost 6 years ago

Thanks

#7 Updated by Nebbie almost 6 years ago

40974

Still happening in 1.6.1. It actually did it while I was yawing left and pitching down (step 3).

#8 Updated by Anonymous over 5 years ago

  • Subject changed from landing gear kick back when fully compressed (Please update to 1.6.) to landing gear kick back when fully compressed

#9 Updated by chris.fulton over 5 years ago

  • Status changed from Confirmed to Ready to Test
  • Target version set to 1.7.2
  • % Done changed from 10 to 80

Several Changes and bug fixes have been made, moving this bug to RTT and can you check it in 1.7.2.2555?

#10 Updated by Anonymous over 5 years ago

  • Status changed from Ready to Test to Not Fixed
  • % Done changed from 80 to 50

The behavior is the same as in version 1.6

#11 Updated by Anonymous about 5 years ago

  • Status changed from Not Fixed to Resolved
  • % Done changed from 50 to 100

Version 1.8.1, presumably because of the new Unity engine, now has reasonable behavior when we bottom out landing legs. They act as if they hit a hard stop, and the rebound is slower than the descent into that stop.

#12 Updated by chris.fulton almost 5 years ago

  • Status changed from Resolved to Closed

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