Endurance

Endurance (the ability to endure) is a multi-faceted term used in several contexts in GURPS.

Basic Set[]

B56 under Flight, mentioning that B195 Flight (skill) improves endurance (implied: while flying, or flight endurance)
B80 under Reduced Consumption mentions "For indefinite endurance, see Doesn’t Eat or Drink, p. 50.)" implying (in respect to B139) the following descriptors (not actually stated):
- 12-hour endurance for RC1
- 24-hour endurance for RC2
- 7-day endurance aka 1-week endurance for RC3
- 1-month endurance for RC4
- B139 under Increased Consumption mentions three types for those with the Machine meta-trait (referring to the Fuel Supply feature included) as modifications to the the baseline 8-hour endurance one would have without them, which is how many hours 1 "meal" of fuel would give:
- 4-hour endurance
- 2-hour endurance
- 1-hour endurance
- "doubling consumption and halving endurance for each additional level."
  - to distinguish this type of "endurance" (referring to the time's worth of activities a machine can store) this could be referred to as something like fuel endurance or activity endurance

refers to the "energy reserve" of 8 hours on B263.

B195 refers to Flight (skill) as "training for endurance flying" (this works akin to Hiking for walking not sprinting speeds, and has a default: there does not appear to be a match for the Running skill)
B200 refers to Hiking as "training for endurance walking"
B214 under Piloting for Low-G Wings mentions "Learn Flight (p. 195) for endurance flying."

B349 "HT rolls for feats of endurance" (as opposed to matters of precision)
B463 Long-Distance Movement mentions endurance in hours under "Endurance" after Cruising Speed as matters which can be more important than Top Speed or Range
- endurance in excess of one day requires provisions

Fatigue Points are the ability to endure Fatigue
- derived from ST in 3e and HT in 4e
Hit Points are the ability to endure Injury
- derived from HT in 3e and ST in 4e
HT is the ability to endure Resistible physical threats
- can be supplemented by Resistant
- sometimes they might be floated to DX
Will is the ability to endure Resistible mental threats
- can be supplemented by Mental Resistance or Fearlessness (or penalized by Fearfulness)
- sometimes they might be floated to IQ
Stun Points in 3e were an ability to resist non-injurious damage effects
Action Points in Pyramid were an ability to endure sub-fatigue action costs
High Pain Threshold is the ability to endure Shock (rule)

Derangement and Stress in horror were abilities to endure normal Fear Checks' cumulative results.