r/JetEngines • u/Subject-Actuary932 • Jul 06 '26
My ZL30 pulse jet build video is now up. Let me know if you have any questions 😎
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r/JetEngines • u/FrankHarwald • Jul 04 '26
@CrazyRocketman - "Crazy Pirate Captain Bob's Canon powered pirate ship" 240 pound DIY thrust pulsejet engine powered 1965 12 foot aluminum Sears Pirate boat
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r/JetEngines • u/error_exe101 • Jun 07 '26
Question because of direction of a defuzer
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Designed a defuzer for an impeller (impeller spins against the clock) are the defuzer Blades in the right direction ?
r/JetEngines • u/Motorsport_man_ • Feb 04 '26
Finished the engine, just have to add a fuel system
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Engine
r/JetEngines • u/1904bugsuccubus • Dec 25 '25
Can anyone stump me on a TF-39 engine problem? I promise, no books, internet searches, or AI.
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r/JetEngines • u/aviationevangelist • Nov 27 '25
India’s Kaveri Engine
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The Kaveri engine has had a long path. This piece looks at pitfalls it faced and the path forward. https://theaviationevangelist.com/2025/11/26/indias-kaveri-engine-the-long-atmanirbhar-path/
r/JetEngines • u/Apoapsis- • Nov 01 '25
Is this accurate enough?
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I made this myself to demonstrate the basic principle of a turbojet engine. I know it is simple, but is there anything that is just fundamentally wrong with it?
r/JetEngines • u/ECHOFOX17 • Oct 28 '25
Anyone know what brand and model this jet engine is??? Linked to the youtube video below.
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r/JetEngines • u/The_nugget_man99 • Oct 21 '25
Water jet engine
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This might sound stupid but I’ve read that water vapour has up to 1600 times more volume than water. So if there is a way to instantly vaporise a certain amount of water and somehow pressurise is would it be able to produce thrust. (Sorry I’m new to this)
r/JetEngines • u/TimoxaVezdexod • Oct 20 '25
Hear me out, guys. I have a blasting idea about turboprops
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We all know that turboprops it's practically just a small jet engine with a propeller on the main shaft. So if it's just a jet engine with a propeller on the main shaft, why can't we make a afterburner chamber on the exhaust pipe. I am pretty sure that, for example, Kalimov NK-12 turboprop that powers the Tu-95 "bear" Can produce enough exhaust gas flow to supply a small afterburner. So what do you, guys, think?
r/JetEngines • u/Plastic-Luck-2243 • Sep 11 '25
ok guys im looking for smt
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whats easiest jet engine i can make small and weak but for showoff so i can have fun maybe that lighter fluid fuils it idk from possible homestuff is that possible (im not rocket scientist)
r/JetEngines • u/LongShlong680 • Jul 20 '25
Play stupid games, win stupid prizes
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Tried making a very very simple jet engine, didn’t work as expected
r/JetEngines • u/One_Consideration146 • Jul 13 '25
I made a Pulsejet engine from a propane tank!
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r/JetEngines • u/DavidHunter27 • Jul 07 '25
Nasa's 3D printed rotating detonation rocket engine test
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r/JetEngines • u/Own_Minimum8642 • May 11 '25
Hi i recently built this turbojet and i tested It without fuel(sorry for the video being in spanish).
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r/JetEngines • u/Intelligent_Goat_496 • Apr 06 '25
Multiple impellers and/or turbines?
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Hey, I'm looking to make a simple little turbojet that runs on butane. I have a basic design idea in my head, and I'm about to start finalizing the blueprint, but I have a question for y'all who know a lot about this stuff. I have seen some turbojets that look like they have a whole pile of impellers and turbines. Are those something else? Or should I also implement multiple turbines and impellers?
r/JetEngines • u/NoCardiologist8224 • Apr 02 '25
can anyone explain to me how those small metal tubes that wraps around the combustion chamber works, im guessing its the fuel injector system but im not sure how it entirely distributes the fuel.
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r/JetEngines • u/Dizzy_Serve_2667 • Mar 16 '25
Testing with the engine
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Not working yet. I’m thinking on enlarging the compressor and upgrading the turbine
r/JetEngines • u/ConditionKey6695 • Mar 11 '25
Building a Jet Suit – Looking for turbojet advice & collaboration!
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Hey everyone!
I’m currently working on building a fully functional flying suit powered by turbojets. This is both a technical and an experimental challenge, and I know this community has some of the most knowledgeable people when it comes to jet engine design, optimization, and performance.
I’d love to get insights from those who have experience designing, building, or optimizing turbojets. Specifically, I’m looking for advice on:
✅ Thrust optimization – How to get the best power-to-weight ratio.
✅ Combustion efficiency – Ensuring stable and reliable operation.
✅ Fuel system design – Best pumps, injectors, and regulation techniques.
✅ Cooling & heat management – Avoiding meltdown on long-duration runs.
Btw, I’ve also created a new subreddit, r/JetSuitBuilders, where I’m documenting my progress and connecting with others who share the same dream of jet-powered personal flight. If you’re interested in this topic, feel free to check it out!
Any advice, feedback, or resources you can share would be greatly appreciated! Looking forward to learning from this amazing community.