Flying Machine
A compact flying machine using observer-piston loops to travel indefinitely in one direction. Can be used for transportation or as a base for TNT bombers.
Overview
The Flying Machine is a redstone build whose job is automating an action or hiding a mechanism with redstone logic; form follows function here, so the layout is dictated by how it works rather than by looks. At 5x2x2 blocks (5 wide, 2 tall and 2 deep) it is very compact, covering a 10-block footprint on the ground.
It is rated advanced, so expect to manage significant resources and, in many cases, get redstone timing or precise block-by-block placement correct before it works or looks finished. Following the 10 steps below, plan for about 20-30 min. The parts for self-propelled travel are obtainable in survival, but with 4 components packed into a tight space it is far easier to prototype the Flying Machine in creative, get the timing right, then rebuild it where you actually need it.
The bulk of the work is the 4 slime blocks that form the main body, alongside 4 different materials in total (about 9 blocks and items all told). The working heart is the redstone — sticky piston, piston, observer and slime block — which is what actually delivers the self-propelled travel. There is no dedicated light block in the core list, so add torches or lanterns yourself to keep it mob-safe after dark.
Materials Needed
Gather the 4 slime blocks first, since it is the most-used block; the remaining 3 materials are accents and fittings used in smaller amounts. Mine roughly 10-15% extra of the main block to cover mistakes and a few decorative changes on a build this size. Make sure the redstone components (sticky piston, piston, observer and slime block) are crafted ahead of time, as those are the pieces most likely to be missing mid-build. Quantities are sized for the dimensions shown, so scale them up proportionally if you build a larger version.
| Material | Quantity |
|---|---|
| Sticky Piston | 2 |
| Piston | 1 |
| Observer | 2 |
| Slime Block | 4 |
Click any material to view it on the Items database.
Step-by-Step Overview
A high-level construction order for the Flying Machine, from the ground up. Each phase below covers several of the 10 in-game steps.
- 1Plan the layout for the Flying Machine on paper or in a flat test world first; it gives you self-propelled travel, and that depends on exact block placement, so mark where every component sits.
- 2Lay the input side — the activation block that launches the Flying Machine — and confirm the signal actually reaches the mechanism before you build the rest.
- 3Build the working half of the Flying Machine: an observer-piston-slime loop that pushes itself. Connect it back to the input with dust, repeaters and torches.
- 4Hide the wiring behind blocks once the Flying Machine works, but leave a hatch to any repeaters you might need to retune for timing.
- 5Trigger the Flying Machine repeatedly from both states to be sure it never jams or desyncs before you build it into anything permanent.
Build Tips
- 1Observers facing each other create a clock when activated.
- 2The machine stops when it hits an immovable block.
- 3Add a player platform on top for safe riding.
- 4Use honey blocks to prevent attached blocks from being pushed.
Tips & Variations
The Flying Machine has no light block in its core list, so add torches, lanterns or sea lanterns yourself: light every interior tile and the ground around it so nothing spawns on or beside the build overnight.
To resize the Flying Machine, keep its 5x2 proportions and grow both axes together; stretching one direction alone tends to make it look thin. A half-size or double-size version both work as long as you scale the 9-block material list to match.
For a different look, swap the slime block in the Flying Machine for another palette that fits your biome: the shape stays identical, but the colour and texture of the main block changes the whole feel of it.
The most common mistake on the Flying Machine is wiring before testing: power one section of the sticky piston and piston at a time and confirm it fires before you bury the redstone, because a single misplaced repeater driving the self-propelled travel is painful to find once it is hidden inside the wall.
Frequently Asked Questions
How hard is the Flying Machine build?
It is rated advanced, so expect to manage significant resources and, in many cases, get redstone timing or precise block-by-block placement correct before it works or looks finished. It is laid out in 10 steps and takes about 20-30 min to finish.
What blocks do you need for the Flying Machine?
The main block is slime block (around 4), and the full list runs to 4 materials — mostly slime block, sticky piston and observer. Altogether that is roughly 9 blocks and items; the complete table with exact counts is above. It also needs the redstone components that make it work: sticky piston, piston, observer and slime block.
How big is the Flying Machine?
It measures 5x2x2 blocks — 5 wide, 2 tall and 2 deep — which is very compact and takes up a 10-block footprint. You can shrink or enlarge it by keeping those proportions.
Is the Flying Machine survival-friendly?
The parts for self-propelled travel are obtainable in survival, but with 4 components packed into a tight space it is far easier to prototype the Flying Machine in creative, get the timing right, then rebuild it where you actually need it.
Does the Flying Machine work on its own once built?
It does not run continuously — the Flying Machine sits idle until you trigger it, then performs its action (self-propelled travel) and resets. Once wired correctly it works on demand every time, with no upkeep beyond the occasional retune if the timing drifts.
What makes the Flying Machine different from similar builds?
It is best understood through its focus on flying, machine and transport. Those traits drive the material list and layout described above, and are what set this redstone build apart from a generic self-propelled travel build.
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