Anton Voltchok
Software Engineer & Design Lead at Collaborizm
· New YorkU.S.
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I think there might be some overestimation on just how difficult and unbelievably expensive it is to build a turbine engine that has the ability to safely fly over civilian airspace to deliver goods. There are military drones which have scaled down turbine engines, I would imagine this one would be slightly smaller then those, but here are some things to keep in mind.

## Engine Components

Before I became a software engineer, I used to work in aerospace and defense dealing with everything from missile systems to a large variety of aircraft components. You could face serious issues and even potential jail time if you are not extremely careful about the parts you purchase.

people don’t realize that what seem like common commercial parts, even some such as nuts , screws, and fasteners, may be under ITAR military regulations and are forbidden for personal use. Turbine parts are specifically made to withstand extremely high stress and temperatures so they are legally classified different ways, mostly due to the fact that many of the parts that go on commercial jets are the same ones that go on military jets.*

Unless you are a certified FAA or if in Europe , an EASA repair station for aircraft you would be surprised how difficult the simplest parts could be to get, let alone getting fan blades.

## Cost / Purchasing / Safety

Don’t forget safety, money has to be spent on special coatings and treatments, if components do not receive them,

they will likely fail, and without proper safety, equipment, and test grounds, chances are someone is getting killed.

It would be a lot easier to purchase needed materials if you started a business and incorporated.

However these parts are not cheap, unless you are doing production run to make a couple thousand engines, your costs depending on complexity/scale could be anywhere from $500000 to easily over a few million once you add in costs for custom manufacturing, coatings, cost of shipping components out to test labs and back, the very high cost of testing at the labs for certain components, fuel costs for the insane amount of test hours needed, etc… And don’t get me started on a test facility, if this thing is flying in civilian airspace to deliver, then you must physically recreate conditions like the engine being able to withstand anything from a few small dead birds being thrown in it, to dozens of gallons of water , to ice balls, to tons of sand and dirt (its why those parts cost so much money and need to go through extensive expensive testing) anyways, building this type of facility or somehow renting one is not going to happen unless you win the lottery. I love the enthusiasm in this project but knowing certain facts it would seem to make more sense to pivot to an idea which is slightly more feasible. 4 likes Like Share Load 1 previous comments Anton Voltchok Software Engineer & Design Lead at Collaborizm · New YorkU.S. Edit Delete Share Report If you’re goal was to have a flying drone with delivery mechanism and a turbine engine flying over civilian air space, I was just letting you know that’s a job Lockheed Martin would have 30 engineers and millions of dollars devoted to that task, so is it realistic that you will build this in your back yard without any money, and not even a CNC machine to make smaller versions of the parts yourself… probably not. Not to mention if you actually started to go down this path and trying to purchase old engine parts, I was just making sure you didn’t get yourself in trouble more than anything. I checked out this project because I have a love for aerospace as an area I worked in the past. If you don’t want to build a drone, and you’re only purpose is to learn, why don’t you make the project instead about building a better option to the little RC airplane engines (they are technically tiny little turbine engines), you will learn how a turbine works in the process and you wont face any legal challenges. The cost however is still going to be an issue, you can design an engine for free using software, but the only way you can put it together is to pay for getting a whole bunch of those parts done at a machine shop. Again I’m not stopping you from doing anything, nor is anyone else, in fact I want nothing more than for people to make progress, however we can only do what our limitations allow, which is why I suggested shifting focus on something that you can make constant progress in, DAILY or WEEKLY progress, and learn a lot and learn quickly, a realistic project will help you do that. If I said to you, I want to make a nuclear submarine and I need you to show me how to make it in my backyard, do you think it would then be mature of me to blame you when you point out that we can’t get access to nuclear material for the nuclear submarine? 1 like BlackStar Vvek Student (Project Leader) · MaduraiIndia Edit Delete Share Report Hahaha sorry bro, don’t take any offence I can get your points, you are explaining the realities based on your experience and facts. I totally agree with you. But I don’t know how to explain my thoughts clearly. See, in my situation, around my city, colleges, building a humanoid robot, that can walk, talk, understand what we say, is far away from reality! But I achieved out of my interest struggling for almost 2 years. Like this project, I have no idea when I started that robot project. I know nothing about embedded systems coding, app development and other coding stuffs. But I learned from the scrap and achieved one day. So I have huge confidence that one day I will build a drone with jet engine, let them do big researches on similar projects with good technical and financial support. I just want to create a model to prove my talent and I can promote for bigger real time projects. Considering your point, your limitations and your community standards, If you want more realistic project that can be improved on daily or monthly basis. I’m ready to take down this project from this community or renaming this project’s title like removing “for drones”. Anton Voltchok Software Engineer & Design Lead at Collaborizm · New YorkU.S. Edit Delete Share Report You don’t have to take it down, if what you want is to just learn about the basics of a turbine engine this is still a valid learning project, the scope was just a little large. I honestly think a project just about learning a turbine engine works and recreating it on a microscale would be awesome. Something I can possibly see working out as a learning example is to try to recreate the engine from model RC airplanes, they use a mini/micro turbine engine for the very large RC planes, and although they’re made by companies specializing in manufacture of these engines, I believe this is the closest type of engine which can feasibly be reproduced since there is less of a need for special coatings and superalloys. If you wanted to see how theyre made you could purchase one for about$2500 to deconstruct it:

However if you want to physically make one yourself, there is no way to get around the need for the following:

1. A metal lathe or metalworking lathe, which is a large class of lathes designed for precisely machining relatively hard materials.

1. A CNC machine:

Both are usually available in mid sized machining/metalworking shops, maybe visit all the machine shops in your area and see what they have. Does your school offer such machines?

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Anton Voltchok
Software Engineer & Design Lead at Collaborizm
· New YorkU.S.
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So after researching making miniature turbine engines, looks like plenty of people have struggled and hit similar road blocks to what I’m describing, but from the forums I read there do seem to be a large number of people who want to make something like this.

Maybe one of the first tasks to the project is to search all the forums on the subject and get all the people onto the same project here, when everyone is in 1 place, working together, potentially pooling money collectively to overcome some of these obstacles.

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Anton Voltchok
Software Engineer & Design Lead at Collaborizm
· New YorkU.S.
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BlackStar Vvek there actually already is a project for recreating the RC type turbine engine which I was referring to on Collaborizm, maybe consider merging the projects together, since that project is essentially about what you are saying you want to learn:

https://www.collaborizm.com/project/r1XX1Zqv

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BlackStar Vvek