Barotrauma Reactor Optimizer

Dial in the exact Fission Rate and Turbine Output for your submarine's reactor. Select your sub or enter your max output, set the current load and rod type, and get the target dial values.

Submarine Quick-Select

Reactor Parameters

Max Reactor Output (kW)

Check reactor panel in-game or sub editor.

Current Power Load (kW) 2500 kW

Total ship systems drawing power right now.

Fuel Rods Loaded 2 rods

More rods = more heat at the same fission rate.

Rod Type

Target Dial Settings

Target Turbine Output

51%

Target Fission Rate

25%

Output

2500 kW

Load

2500 kW

T_min Threshold

12%

Est. Temperature

~2500 K

✅

Safe operating range — estimated temperature is within limits

Estimated ~2500 K. Target operating range is 4000–5500 K for stable power delivery.

Engineer's Checklist

1. Set Turbine Output to 51% — this controls how much of the generated power reaches the grid.

2. Set Fission Rate to 25% — this drives the reaction and determines core temperature.

3. T_min is 12%. If Turbine Output falls below this, output drops to zero. Keep it above this value.

Reactor Physics Reference

Power Formula

Power = (TurbineOutput - 1) / 100 × MaxReactorOutput

Only applies when TurbineOutput ≥ T_min. Below T_min, output drops to zero.

T_min (Minimum Turbine Threshold)

T_min = 50 × (FissionRate / 100)

The minimum turbine setting needed to actually generate power at a given fission rate.

Temperature & Overheat

Overheat occurs above 6482 K. Safe operating target is ~5000 K. Higher fission rates and hotter rod types (Fulgurium 2x, Thorium 1.5x) increase heat generation. More rods loaded also multiplies heat output.

Rod Type	Heat Multiplier	Notes
Standard	1.0x	Balanced. Safe for most loads.
Thorium	1.5x	Higher output, moderate overheat risk.
Fulgurium	2.0x	Maximum output. High overheat risk — monitor constantly.