Extreme Reactors 2.4.28ATM10 · ATM10: AeronauticsTested in-game · Sep 25, 2026

Why your ATM10 turbine doesn't make the power the guides say

You build a turbine from a guide or a calculator, spin it up to a perfect 1,800 RPM, and the energy readout is way off. Your build isn't wrong. The pack changed how much power every Extreme Reactors turbine makes, and it's in one config file.

The short version

ATM10 multiplies turbine output by 12. ATM10: Aeronautics multiplies it by 0.4. That's a 30× gap between two packs with nearly the same name.
Only RF/t changes. RPM, blade counts and coil counts are identical in every pack, so the same design rules still apply.
ATM10: Aeronautics also caps turbines at 16×16×16 (default and ATM10: 32).

Mod default23,697 RF/t×1

ATM10284,360 RF/t×12

ATM10: Aeronautics9,479 RF/t×0.4

One Reinforced turbine: 2,000 mB/t of steam, 80 blades, 36 enderium coils, 7×7×14. It spins at 1,848 RPM in all three.

The test

We built a Reinforced turbine on an ATM10: Aeronautics 0.6.1 server: 5×5×16, 43 blades, 24 blocks of platinum, 1,082 mB/t of steam. Then we compared the controller to our turbine planner, which uses formulas read from the mod's code.

	In-game controller	Planner (default config)	Planner (Aeronautics config)
Rotor speed	1,798.74 RPM	1,799 RPM	1,799 RPM
Energy output	4.27 kFE/t	10,686 RF/t	4,275 RF/t

The RPM matched almost exactly, but the power was off by a clean factor of 0.4. A wrong formula doesn't produce a round number like that. A multiplier does.

Where the multiplier lives

Extreme Reactors reads two power settings from config/extremereactors/common.toml. Here they are in each pack:

# Mod default
powerProductionMultiplier        = 1.0
turbinePowerProductionMultiplier = 1.0    # → ×1

# ATM10
powerProductionMultiplier        = 4.0
turbinePowerProductionMultiplier = 3.0    # → ×12

# ATM10: Aeronautics 0.6.1
powerProductionMultiplier        = 0.5
turbinePowerProductionMultiplier = 0.8    # → ×0.4

In the mod's code, the turbine multiplies its energy by both values right before storing it (MultiblockTurbine.getAdjustedPowerProductionMultiplier). That happens after the rotor's drag is worked out, which is why RPM never changes:

drag  = rpm × 0.1 × Σ coil extraction rates
RF/t  = drag^bonus × coilEfficiency × rpmFactor
        × powerProductionMultiplier
        × turbinePowerProductionMultiplier

What this means for your build

Setting	Mod default	ATM10	ATM10: Aeronautics
Turbine power	×1	×12	×0.4
Max turbine (exterior)	32×32×32	32×32×32	16×16×16
Target RPM	900 or 1,800 in every pack. The cosine efficiency curve isn't configurable.
Steam per blade	25 mB/t (Reinforced), 15 mB/t (Basic) in all three.
Coil count for a target RPM	Identical. Coils set drag, and drag isn't scaled.

So any turbine guide still gives you the right shape: blade count, coil count and RPM target. Just multiply its power figure by your pack's number. On Aeronautics, keep designs within 16 blocks tall. A 2,000 mB/t turbine with 80 blades fits in 7×7×14.

Check your own pack in a minute

Open your instance folder. In the CurseForge app, open the profile's ⋯ menu and choose Open Folder.
Open config/extremereactors/common.toml in a text editor.
Multiply powerProductionMultiplier by turbinePowerProductionMultiplier. That's your turbine power factor.
On a multiplayer server, the server's copy is the one that counts, since the turbine runs server-side. Ask your server admin if the numbers look off.

Then enter both values in the planner under Server config → Custom, or pick a preset:

Plan a turbine for ATM10 Plan a turbine for ATM10: Aeronautics

The same file changes your reactor, too

Both packs also change the reactor settings in that file. The reactor planner has presets for both packs. Here are the values:

Setting	Mod default	ATM10	ATM10: Aeronautics
`reactorPowerProductionMultiplier`	1.0	3.0	0.8
`fuelUsageMultiplier`	1.0	0.8	1.2
Max reactor (size × height)	32 × 48	32 × 48	32 × 32