Skip to content

Reliability

Disables other modules when a failure happens.

Source: Reliability.cs.

PROPERTY DESCRIPTION DEFAULT
type name of the component part module (e.g. ModuleParachute)
mtbf mean time between failures, in seconds; 0 disables MTBF failures 21600000 (1000×6h)
repair trait and experience for repair, trait@experience
title short description of component
redundancy redundancy group
extra_cost extra cost for high-quality, proportion of part cost 0
extra_mass extra mass for high-quality, proportion of part mass 0
rated_radiation rad/h this part can endure without extra MTBF damage; 0 = no radiation damage 0
radiation_decay_rate how fast time-to-next-failure shrinks while over rated radiation 1

Engine failures

Engine ignition counts, rated burn time and turn-on failure chance are not part of core Reliability. They live in the optional companion mod KerbalismEngineFailures (GameData/KerbalismEngineFailures, module EngineFailures).

See that package's README and EngineReliability.cfg for propulsion-family auto-ratings. CKAN recommends the companion with official KerbalismConfig and marks conflicts with TestFlight / RO / RP-1.

MTBF

Implementation guarantees roughly 50% of MTBF without failure, then failure rate rises (near-certain by ~150% MTBF).

Radiation damage

While vessel radiation exceeds rated_radiation, MTBF countdown accelerates using radiation_decay_rate.

High quality

In the editor, parts can be set to high quality:

  • Adds extra_cost / extra_mass
  • Multiplies MTBF by Settings QualityScale (default 4)
  • Improves radiation ratings accordingly

Difficulty options can require repair kits for repairs (non-default).