# Trains & railway - Stage 4 (technology) internal name `railway-mk04` · tier 8 (pY science pack 4, [tier 8](https://factorio.kalzumeus.com/tier/8.md)) HTML page: https://factorio.kalzumeus.com/tech/railway-mk04/ ## Cost 3300 units of (1 × [pY science pack 4](https://factorio.kalzumeus.com/item/py-science-pack-4.md), 2 × [Production science pack](https://factorio.kalzumeus.com/item/production-science-pack.md), 3 × [pY science pack 3](https://factorio.kalzumeus.com/item/py-science-pack-3.md), 6 × [Chemical science pack](https://factorio.kalzumeus.com/item/chemical-science-pack.md), 10 × [pY science pack 2](https://factorio.kalzumeus.com/item/py-science-pack-2.md), 20 × [Logistic science pack](https://factorio.kalzumeus.com/item/logistic-science-pack.md), 30 × [pY science pack 1](https://factorio.kalzumeus.com/item/py-science-pack-1.md), 60 × [Automation science pack](https://factorio.kalzumeus.com/item/automation-science-pack.md), 10 × [Military science pack](https://factorio.kalzumeus.com/item/military-science-pack.md)), 450 s each. ## Requires (3) - [Machine Components - Stage 4](https://factorio.kalzumeus.com/tech/machine-components-mk04.md) - [pY science pack](https://factorio.kalzumeus.com/tech/py-science-pack-4.md) - [Trains & railway - Stage 3](https://factorio.kalzumeus.com/tech/railway-mk03.md) ## Leads to (0) - none ## Unlocks (3 recipes) ### Superior floating generic fluid wagon (`mk04-fluid-wagon`) - 0.5 s · tier 8 - Ingredients: 100 × [Super alloy](https://factorio.kalzumeus.com/item/super-alloy.md), 50 × [Biopolymer](https://factorio.kalzumeus.com/item/biopolymer.md), 2 × [Intelligent unit](https://factorio.kalzumeus.com/item/intelligent-unit.md), 1 × [Electronics MK04](https://factorio.kalzumeus.com/item/electronics-mk04.md), 50 × [Carbon Fiber](https://factorio.kalzumeus.com/item/cf.md), 1 × [Metastable Quasicrystal](https://factorio.kalzumeus.com/item/metastable-quasicrystal.md), 500 × [Special small parts](https://factorio.kalzumeus.com/item/small-parts-03.md), 20 × [Metallic glass](https://factorio.kalzumeus.com/item/metallic-glass.md), 20 × [Low density structure](https://factorio.kalzumeus.com/item/low-density-structure.md) - Results: 1 × [Superior floating generic fluid wagon](https://factorio.kalzumeus.com/item/mk04-fluid-wagon.md) - Made in: Burner assembling machine MK 01, Burner assembling machine MK 02, Burner assembling machine MK 03, Automated factory MK 01, Automated factory MK 02, Automated factory MK 03, Automated factory MK 04, Character, Character (flying), Mutagenic infusion, (flying) - Unlocked by: [Trains & railway - Stage 4](https://factorio.kalzumeus.com/tech/railway-mk04.md) ### Superior floating locomotive (`mk04-locomotive`) - 0.5 s · tier 8 - Ingredients: 150 × [Super alloy](https://factorio.kalzumeus.com/item/super-alloy.md), 200 × [Biopolymer](https://factorio.kalzumeus.com/item/biopolymer.md), 5 × [Intelligent unit](https://factorio.kalzumeus.com/item/intelligent-unit.md), 20 × [Nexelit plate](https://factorio.kalzumeus.com/item/nexelit-plate.md), 2 × [Electronics MK04](https://factorio.kalzumeus.com/item/electronics-mk04.md), 100 × [Carbon Fiber](https://factorio.kalzumeus.com/item/cf.md), 5 × [Superconducting Claw-pole Engine](https://factorio.kalzumeus.com/item/sc-engine.md), 2 × [Metastable Quasicrystal](https://factorio.kalzumeus.com/item/metastable-quasicrystal.md), 300 × [Special small parts](https://factorio.kalzumeus.com/item/small-parts-03.md), 10 × [Metallic glass](https://factorio.kalzumeus.com/item/metallic-glass.md), 20 × [Low density structure](https://factorio.kalzumeus.com/item/low-density-structure.md) - Results: 1 × [Superior floating locomotive](https://factorio.kalzumeus.com/item/mk04-locomotive.md) - Made in: Burner assembling machine MK 01, Burner assembling machine MK 02, Burner assembling machine MK 03, Automated factory MK 01, Automated factory MK 02, Automated factory MK 03, Automated factory MK 04, Character, Character (flying), Mutagenic infusion, (flying) - Unlocked by: [Trains & railway - Stage 4](https://factorio.kalzumeus.com/tech/railway-mk04.md) ### Superior floating generic wagon (`mk04-wagon`) - 0.5 s · tier 8 - Ingredients: 100 × [Super alloy](https://factorio.kalzumeus.com/item/super-alloy.md), 50 × [Biopolymer](https://factorio.kalzumeus.com/item/biopolymer.md), 2 × [Intelligent unit](https://factorio.kalzumeus.com/item/intelligent-unit.md), 1 × [Electronics MK04](https://factorio.kalzumeus.com/item/electronics-mk04.md), 50 × [Carbon Fiber](https://factorio.kalzumeus.com/item/cf.md), 1 × [Metastable Quasicrystal](https://factorio.kalzumeus.com/item/metastable-quasicrystal.md), 500 × [Special small parts](https://factorio.kalzumeus.com/item/small-parts-03.md), 20 × [Metallic glass](https://factorio.kalzumeus.com/item/metallic-glass.md), 20 × [Low density structure](https://factorio.kalzumeus.com/item/low-density-structure.md) - Results: 1 × [Superior floating generic wagon](https://factorio.kalzumeus.com/item/mk04-wagon.md) - Made in: Burner assembling machine MK 01, Burner assembling machine MK 02, Burner assembling machine MK 03, Automated factory MK 01, Automated factory MK 02, Automated factory MK 03, Automated factory MK 04, Character, Character (flying), Mutagenic infusion, (flying) - Unlocked by: [Trains & railway - Stage 4](https://factorio.kalzumeus.com/tech/railway-mk04.md)