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This article needs cleanup to comply with the style guide. [discuss] Please help improve this page. The talk page may contain suggestions. Not to be confused with Elytra or Flying. Flying machines are mechanisms that use slime blocks and/or honey blocks, redstone blocks, observers, and pistons to move a structure of blocks in one or more directions, moving freely through air or water without support. They can also be designed to carry along a player and/or other entities, which may be riding in a minecart or towed along by honey blocks. The mechanics of such machines vary slightly between the Java and Bedrock Editions of Minecraft; This guide covers Java Edition and Bedrock Edition in separate sections. General Principles[]The key blocks for flying machines, more or less in order of appearance:
There are two main components of slime block flying machines: The engine provides the basic control and motion, based on the idea that a slime block pushed by a piston will move adjacent movable blocks, including other slime blocks, when pushed or pulled. However, each piston is limited to moving 12 blocks total. Extensions uses additional pistons to let tow along additional segments of a larger machine. Honey blocks can also be used to bypass the piston push limit by using adjacent slime block and honey block flying machines to divide the number of blocks in a structure among pistons. In Bedrock Edition, extensions are divided into leading and trailing types. Note that the schematics in this section use the usual building scheme where layer 1 (or occasionally layer 0) is the bottom layer. Java Edition Flying Machines[]Engines[]Engines are mechanical parts of slime-block based flying machines used to move them. In all cases, a major issue is control, especially how to start and stop the machine. There are several options here:
A two-way engine can be made with as few as 6 blocks – 2 Observers, 2 Slime Blocks, and 2 Sticky Pistons. Two-way engines A and B (see gallery above) show two different ways to do this. In both cases, the direction of flight depends on which observer is updated first. Note that in the diagram shown, each observer directly powers a slime block. The dock shown is placed so that the trapdoor will cover the face of the incoming machine's near observer, which lets it send the machine back the way it came. Adding honey blocks allows a player to be carried with the machine in relative safety. The rideable engine shown adds two honey blocks, and a player can stand on each of them. It can be made with 14 blocks – 8 slimeblocks, 2 honey blocks, 2 sticky pistons and 2 observers. Getting on and off is another problem.... Turbo Engine A (see gallery) is a high-speed single-direction engine. It fits into 2×2×6 dimensions and uses 14 blocks. Since zero ticking pistons is not possible on Bedrock Edition, this kind of flying machine will still be the same speed on Bedrock Edition as normal flyers, however, several 2.5 meters per second flying machines have been created for specific use on Bedrock Edition. An engine can also move diagonally by moving alternately along 2 axes. The Diagonal Engine shown is best built out from level 3 (the upper slime--and-piston layer). It moves along its slime-block diagonal, but is guided by immovable (e.g., obsidian) barriers on level 3, so it can follow a straight or curved "rail", in whichever direction(s) it can move until it reaches a corner to block it. It is started by activating either of the observers on top (placing a block, flint-and-steel), and will move away from that corner (that is, it is also a two-way flyer). This video demonstrates two-way engine A above, with long slime-block arms for harvesting, which shuttles between two prepared docks. It can be triggered by placing a block atop the pistons, or by switches at the stations. Note that the harvested crops will be launched at some speed, so this design may be better for an enclosed farm. Extensions[]Extensions are mechanical parts of a fully-automatic flying machine used to push an independent part of a large flying structure. A single piston only can push or pull up to 12 blocks. Extensions use additional pistons to "extend" a slime structure by allowing more blocks to be pushed. One-way extension[]A one-way extension has 2 parts: a normal piston in the rear, and a slime block (or more) with a power source in the front with space between them. Once the rear part with the piston is pushed, the piston will be activated by a power source from the front part. It will push the slime block (and thus the next part of the flying contraption and its extensions), which pulls the power source with it. The piston will then deactivate and prepare for another push. Some simple engines are just made of looped extensions, such that, at any given time one piston is always powered (in these machines it is important to place the redstone blocks last). Two-way extensions[]A two-way extension consists of an observer powering at least one sticky piston which pushes or pulls a part of the flying contraption. This is possible only in Java Edition because it's the only version where sticky pistons (upon receiving a short redstone pulse) can push a block and then retract quickly without pulling it back. This type of extension will either continuously pull or push depending on whether the part it's supposed to move is initially retracted or not. If the part is initially retracted and the extension is continuously pulled, the sticky piston will continuously pull the part. On the other hand, if the part is one block away ("not retracted") and the extensions is continuously pushed, the sticky piston will continuously push the part. This mechanism necessitates a switch within the flying machine to independently retract and extend the extension before flight, because otherwise, the engine will most likely be unable to push due to the "stuck" retracted extensions adding extra load to the engine's pistons. Driveable flying machines[]A flying machine can be designed to not only carry a player along, but allow them to control the machine in flight, starting, stopping, or changing directions. Often due to lag, slime engines can bug allowing the player to fall through the machine. This can be solved by placing the player in a vehicle such as a minecart, by standing on top of a honey block, or by standing inside a Composter. Starting the engine of a flying machine often involves updating a piston or observer. Braking, on the other hand, isn't as straightforward to do in survival because a piston-immovable block must be present to stop the engine. A reliable braking method that was first popularized by SethBling is to attach a noteblock (or any similar redstone component movable by pistons) to the "face" of an observer that powers a piston. The piston is placed on the front of the engine, and since extended pistons cannot be pushed by other pistons, activating the noteblock at the right time will stop the engine. By using sticky pistons instead of pistons for the braking components, they also become 2-way extensions. These can be used to carry extra blocks, such as holders for minecarts/minecart chests, passenger roofs, TNT duplicators, etc. Driveable flying machine A: Dimensions: 8x4 collapsedMaterials: 4 observers, 10 slime blocks, 2 sticky pistons, 2 regular or sticky pistons, 4 note blocks. For seating: 2 fences, 2 minecarts Usage: To start left or right, click the note block with that arrow (behind you). To stop, spam-click the matching barred note block (ahead of you). Credits: Sethbling February 29, 2019, "Simple 2-Way Controllable Flying Machine" (Video). YouTube Driveable flying machine B is kurzawa6's modified version of Drivable machine A, with minecart chests and a roof attached to the 2 two-way spliters. One extension carries a roof to protect the driver from phantoms, the other carries a cargo module with two minecarts (optionally with chests)
Credits: Design from "kurozawa6" ("Minecraft Flying Machine: Drivable, 2-Way, And Roofed With 2 Extra Passengers/Cargo" YouTube Driveable Machine C is a 2-way machine which can be reconfigured in the field to go the other two ways, by mining and replacing four blocks. It can carry two passengers, and has two cargo bays for minecarts with chests (or plain minecarts, for passengers). It uses 20 slime blocks including the cargo bays. Its use is complex, but may be worthwhile just for bragging rights. Dimensions: 8x10, 3 high. Usage: The machine is started by updating an observer (one of the two with open faces) twice, using a flint-and-steel or a water bucket.
Credits: Design from "kurozawa6", Sep 12, 2019 ("Practical Minecraft 4-Way Flying Machine I used to ride in Hardcore for my first Elytras + Cargo" YouTube
Driveable Machine D is a compact four-way engine that is controlled by applying a redstone torch to the central observer.
More complex engines[]The following video shows a complex example, an infinitely expandable flying machine with a 2-way engine and multiple extension (each carrying 2 TNT Duplicators):
Bedrock engine designs[]Flying machines are much more restricted in Bedrock Edition due to the lack of quasi-connectivity and other piston behaviors. In Java Edition, a sticky piston powered with a 1 tick pulse will drop the block it is carrying. The absence of these behaviors makes it difficult to create complex flying machines. Simple engine 1[]
These are basic flying machine designs. The shown examples will move to the viewer's left. Removing the block of redstone, or placing obsidian in front of the observer, will cause the machine to stop. This may be hard to do, unless in creative mode. For players who want to ride their flying machine, it may be hard to add and remove the obsidian or redstone block (especially in survival mode). A slightly easier way is to add layers of another material (such as wood plank) to the machine, stopping just before the limit of what a piston can move and doubling as a practical gondola for the player at the same time. From a position sitting on the machine somewhere, the player may add another wood plank block to the machine, killing the speed. Removing the final block causes the machine to start again. Simple engine 2 The simple engine 2 provides a narrower but longer design, which requires less redstone than others (less redstone blocks). In this example, the machine would begin moving to the left once the observer on the right is activated. This can be done with a redstone pulse, or just lighting the face with flint and steel. To reverse the direction of this machine, simply move one of the slime blocks to the back, and switch the piston and sticky piston. This design is ideal when redstone is scarce, or when up to 9 blocks need to be placed on the front end (the front half only consists of 3 blocks, with a total of 12 blocks able to be pushed by the piston).
Trailer By placing an observer and a sticky piston onto the side, one can build off of the Simple engine 2 design to make the machine bigger as a whole. Keep in mind that multiple trailer attachments can be placed on the side, up, and/or down simultaneously without exceeding the push/pull limit of 12 blocks. This is one way of creating a extension in Bedrock Edition. This addition can be used to hold more cargo, whether it be entities, chests (which are only movable in Bedrock Edition), or TNT (which can be detonated by a following machine equipped with a redstone block). Multi-directional engines[]
This design is multi-directional but it does require a return station to change the direction. The observers are 1 block higher than everything else and have slime blocks below them. The return station is only an example, anything that pushes the machine over so that the other sticky piston is unable to pull the terracotta should work. It may help to watch the videos below to see some more examples.
Extensions[]In Bedrock Edition, it is possible to create extensions, however they are only functional in one direction. This first is the trailing extension (Trailer, shown above), and the leading extension. The leading extension can be made by attaching a backwards-facing observer directly behind a forward-facing normal piston, both attached to slime blocks. Video[]Bedrock Edition: https://minecraft.fandom.com/wiki/File:Bedrock_Flying_Machine.movGallery[]Piston machines[]
See also[]
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I could try and make a video for you :biggrin.gif:
I am uploading a video now, Ill post link when it's done uploading:)
Hope you like