Iron Jetpacks

A fully customizable Forge Energy (FE) based jetpacks mod!

557.4K Downloads

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Rent Server with this Mod

Screenshots

About this Mod

Iron Jetpacks is a modern Jetpacks mod that is both feature-rich and easy to use.

Features

Fully customizable! All Jetpack stats and attributes are fully configurable + you can add your own! (docs)
Comes with a set of default Jetpacks made of various Vanilla and Modded materials.
Powered using Forge Energy (FE) for extensive mod compatibility.
Throttle Controls! Control your aerial movement speed on the fly!
View your current energy, engine, hover and throttle stats using the built in HUD.
NEW! Curios support! Equip your Jetpack as a Curio.

Available Versions

IronJetpacks-26.1.2-9.0.3.jarrelease

MC 26.1.2neoforge

May 15, 2026

IronJetpacks-26.1.2-9.0.2.jarrelease

MC 26.1.2neoforge

May 14, 2026

IronJetpacks-26.1.2-9.0.1.jarrelease

MC 26.1.2neoforge

May 13, 2026

IronJetpacks-26.1.2-9.0.0.jarrelease

MC 26.1.2neoforge

May 12, 2026

IronJetpacks-1.21.1-8.0.11.jarrelease

MC 1.21, 1.21.1neoforge

October 14, 2025

How to Install Iron Jetpacks on Your Server

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

Set forge Loader

In the panel under "Egg", select the forge loader and matching Minecraft version (26.1.2).

Install Mod

Open the mod browser in the dashboard and search for "Iron Jetpacks". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

forgeneoforge

Minecraft Versions

26.1.2, 1.21.1, 1.21 (+16 more)

Server-side

✓ Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Iron Jetpacks server crashes on startup – what to do?

Most common cause: wrong forge version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (26.1.2). You can switch loaders with one click in the panel.

Is Iron Jetpacks compatible with forge and neoforge?

Iron Jetpacks officially supports forge, neoforge for Minecraft 26.1.2, 1.21.1, 1.21. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Iron Jetpacks – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Iron Jetpacks consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.