
HAC-Remaster
Minimal Minecraft mod to make blocks movable. Recreation of the old mod HariboteAirCraft.
Screenshots

About this Mod
HAC Remaster
A faithful remaster of HariboteAirCraft (HAC) 1.7.2 — the classic flying machine mod — rebuilt from
scratch for Minecraft 1.21.11 on Fabric.
Mount a Pyxis block to capture your build and take to the skies. Any connected block structure becomes a
pilotable flying craft.
Features
- Craft Capture — Mounting the Pyxis triggers a flood-fill scan of all connected blocks. They are
snapshotted, removed from the world, and spawned as a flying entity cluster. - Flight Controls — Hold keys to accelerate forward/backward, strafe, turn, and ascend/descend. Matches
the original HAC 1.7.2 movement feel with a level-based state machine. - Passenger Support — Mobs and players riding the craft at capture time are carried along as passengers
during flight. - Config File — Tune block limits and ignored-block lists via
config/hac_remaster.json. - Smooth Landing — Dismount the Pyxis to materialize the craft back into the world at its current
position and orientation.
Requirements
| Side | Required |
|---|---|
| Client | ✅ Yes |
| Server | ✅ Yes |
- Minecraft: 1.21.11
- Mod loader: Fabric
- Fabric API: 0.139.4+1.21.11 or later
Origin
This mod is a remaster of the original HariboteAirCraft(the creator has been missing).
License
Free to use.![Using Pyxis block to lift a village house up.]
Images
Available Versions
How to Install HAC-Remaster on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.11).
Install Mod
Open the mod browser in the dashboard and search for "HAC-Remaster". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.11
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
HAC-Remaster server crashes on startup – what to do?
Most common cause: wrong fabric 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 (1.21.11). You can switch loaders with one click in the panel.
Is HAC-Remaster compatible with fabric?
HAC-Remaster officially supports fabric for Minecraft 1.21.11. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with HAC-Remaster – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if HAC-Remaster 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.
Rent Modded Server
Install HAC-Remaster with just one click on your server.

