Aeronautics: simulated copycats

What this mod does Simulated Copycats is an addon for Create Aeronautics that expands the copycat block system with blocks that carry simulated physical properties. Instead of only mimicking appearance, these copycats change how a contraption behaves in flight, on landing, and under stress. The mod requires both Create and Create Aeronautics, runs on NeoForge, and targets Minecraft 1.21.1. Both client and server must have the mod installed. ## Variable weight copycats You can choose copycats that are extremely light or unusually heavy. Light variants help keep large hulls airborne without excessive lift. Heavy variants act as ballast or counterweights, letting you balance asymmetric designs or deliberately build armored ships that handle like bricks. ## Sticky and slippery surfaces Sticky copycats provide very high friction. They work well for mechanical legs, physical tires that don't slip, and any surface that needs to grab entities or blocks. Slippery copycats do the opposite: they create low-friction surfaces suited for sliding mechanisms, conveyor-style movement, ice-themed builds, and runways where stopping distance becomes a genuine problem. ## Floating and fragile behaviors Floating copycats carry levitite-like buoyancy. They let you build structures that hover or aircraft that defy normal weight expectations. Fragile copycats break under heavy impact or structural stress. A hard landing or a reckless maneuver can shear off sections of a contraption, turning cosmetic choices into engineering consequences. ## Compatibility notes The mod lists Create and Create Aeronautics as required dependencies. It supports NeoForge only and declares support for Minecraft 1.21.1. No other loaders or versions are listed. The license is GPL-3.0-or-later. Planned features include more simulated properties, property customization, and additional copycat variants, but those aren't yet released.