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Bug #12845

Ablators not ablating during re-entry

Added by Entih about 8 years ago. Updated about 8 years ago.

Status:
Closed
Severity:
Low
Assignee:
-
Category:
Parts
Target version:
-
Start date:
10/06/2016
% Done:

100%

Version:
Not Applicable
Platform:
Windows
Expansion:
Language:
English (US)
Mod Related:
No
Votes:
Arrow u r green
Arrow d r red

Description

Issue: Ablating heat shields do not properly ablate during re-entry (Some ablation appears to happen in some atmospheric flight, but not during re-entry).

To test, make a simple ship capable of escaping atmosphere and equip it with a heat shield. Upon re-entering atmosphere, expected behavior is not presented by the shield, and parts behind the shield continue to heat up.

Attached is a screenshot of the ablator not ablating as expected.

Version: 1.2.0.1569 pre-release, Windows x64

20161005214330_1.jpg (221 KB) 20161005214330_1.jpg [email protected] Entih, 10/06/2016 01:54 AM
20161006003223_1.jpg (195 KB) 20161006003223_1.jpg [email protected] Entih, 10/06/2016 04:35 AM
2016-10-05_213830.rar (91 KB) 2016-10-05_213830.rar [email protected] Entih, 10/06/2016 05:00 AM
quicksave.sfs (158 KB) quicksave.sfs [email protected] WKibbous, 10/06/2016 10:22 PM
screenshot10.png (727 KB) screenshot10.png [email protected] sal_vager, 10/24/2016 11:49 AM
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History

#1 Updated by Entih about 8 years ago

25106

Further testing seems to indicate that ablators do ablate in certain circumstances, however I have still not gotten them to ablate in the expected manner.

Screenshot included displays heat shield facing rear of the vessel while ablator resource is actively draining as though the shielding was facing the direction of re-entry.

#3 Updated by Entih about 8 years ago

Upon even further testing, attempting to jettison the heat shield in the example caused a game crash. Crash log included.

#4 Updated by WKibbous about 8 years ago

Can confirm on Linux 1569, uploaded quicksave.sfs- once you get into Kerbin's atmo (around 69Km) ditch the rocket half (spacebar) and use SAS to hold retrograde.

#5 Updated by WKibbous about 8 years ago

Also, more of an observation than anything tested, but it was almost as if the heat shield wasn't registering as being there- I had a lot of heat gauges pop up pretty early and lost the battery and panels, which doesn't generally happen with this design.

#6 Updated by Entih about 8 years ago

Confirming that as of pre-release version 1576, the issue appears to be resolved in the Windows x64 client. Normal ablation behavior is back.

#7 Updated by SkyKaptn about 8 years ago

I am having the same issue. (Only tested with 1.25m). Still does not work in 1576, windows x64. Built a simple vessel from scratch and not relying on old craft file. Pod - heat shield - stack decoupler - fuel tank - engine.

#8 Updated by SkyKaptn about 8 years ago

  • Status changed from New to Confirmed
  • % Done changed from 0 to 10

#9 Updated by sal_vager about 8 years ago

  • Status changed from Confirmed to Need More Info
  • % Done changed from 10 to 0

Testing here shows the ablator is working correctly, so we will need you to re-upload your files so we can see what you are doing, thank you.

#10 Updated by sal_vager about 8 years ago

25646

Looks like this was a pre-release only issue.

#11 Updated by JPLRepo about 8 years ago

  • Status changed from Resolved to Closed

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