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Rapier Engine Burnout vents leftover Oxidizer, Destroys craft.


roiul

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Required to Recreate: At least 1 x Rapier Engine(+ 1 intake of your choice)  attached to a craft containing at least 1x Full Methalox Fuel Tank (Liquid Fuel + Oxidizer). 

Steps to Recreate: Launch Craft, fly to a stable altitude within Kerbin Atmosphere, Engage Closed Cycle Mode on the Rapier Engine when your Liquid Fuel is close to running out, Wait for burnout, stay full throttle.

Expected Result: Rapier Engine Burns out, Remaining oxidizer stays inside the fuel tank.

Actual Result: Rapier Engine Burns Out (with half a tank of oxidizer remaining), Rapier (and everything attached to it) explodes, Fuel tanks empty. Craft destroyed.

Summary: Rapier engine seems to vent all remaining oxidizer when liquid fuel is depleted, causing an explosion.

Realistic? Maybe...

Bug? Maybe...

Annoying? Yes.

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Have also experienced this bug:

  • KSP Version - 0.1.0.0.20892
  • Operating System and version  - Windows 11
  • CPU and GPU models - Intel core i5 12600KF / NVIDIA GeFroce RTX 3080
  • Description of the bug.  
    • Expected Behavior - Ship progresses past 70km without issue.
    • Observed Behavior - Ship spontaneously destroyed at 69,998m
  • Steps to Replicate - SSTO with rapier and whiplash engines
  • Fixes / Workarounds (if known..) unknown
  • A list of ALL mods - None
  • Other Notes: See image in spoiler.
Spoiler

r8fL57z.jpg

 

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