Feathers burn with extreme intensity

[LexLonbray]

Describe the bug

If you ignite even a single bird feather, it will produce instant raging fire, pretty sure it's not intended.

Steps To Reproduce

1. Spawn a feather
2. Light it on fire
3. Skip a few turns

Expected behavior

Feather should not burn like napalm, it should produce a small fire like other small and light flammable items.

Versions and configuration

• OS: Windows
  • OS Version: 10.0 2009
• Game Version: 597492c [64-bit]
• Graphics Version: Tiles
• Game Language: System language []
• Mods loaded: [ Dark Days Ahead [dda], Disable NPC Needs [no_npc_food], Bionic Professions [package_bionic_professions] ]

[Salty-Panda]

Looking at materials, they are made of cotton, which does get burned very fast, but it shouldn't produce raging fire.

I tested with a feather, down feather, and thread (similar volume, same material). After dropping one item and setting it on fire an ordinary fire was created, in a few turns it has grown into raging fire. Meanwhile, tinder never grows above small fire.

Probably caused by the high value of volume_per_turn property of cotton. Honestly, I think that entire burn_data needs audit, which I already reported in #47498

[NetSysFire]

This still happens and I dropped one feather and one down feather each and ignited them with an ordinary lighter, they burned four hours. I only got a raging fire with the down feather but this still seems pretty wrong.

[Fris0uman]

closed in #65536