Now that's a fruit slicer . Sounds good , I have been wanting to build one so a longtime. Finally got a descent lathe and mill . Machining parts has been a slow process. But one day
I did not know such a small turboshaft engine could spin such a large prop..Thank you sooooo much for sharing. Pls ignore all the negative feedback. They are sheep and you are a VIKING!
@@jgfakjshfdgkajshd the propeller is fixed pitch as are most of the propellers that aren't on full size aircraft(and alot of full sized aircraft have them)
se funcionar por mais de 1 hora ta bom, pq vc acha que ele desligou rapido, essas turbinas funcionam em muita alta rotaçao, se nao utilizar os materiais certos e os lubrificantes, fica funcionando por no maximo uns 5 minutos ate explodir, na epoca da segunda guerra mundial os russos copiaram o motor a jato alemao, so que o motor russo funcionava 1 hora e ja podia jogar fora poque eles nao sabiam os materiais que os alemaes utilizaram, so fizeram a engenharia reversa do formato do motor
Brilliant, interesting to know technical data and specifications on the motor and thrust. The air powered back over the engine would certainly help cool it some.
FYI: Sorry for the slow reply. been very busy with other projects. This engine was designed for driving an electric generator. With this size of the engine, you can easily extract 10-15kw depending on the operating RPM. solely want to have this engine for teaching students to understand a gas turbine operation/ theory as an educational engine. The thrust of the engine is not our concern.
The kid standing on that side pf the spinning propella looking directly into it. Wins the Darwin award hahhaha. My dad always told me not to stand infront of spinning heavy equipment or fast moving objects. I've had a few mistakes where I've used baggy clothes with machinery and have a few close shaves. I've always been aware of the dangers but always considered myself skills enough to not get caught out. I never did but I don't gamble or risk no more it's stupid. Safety comes first as always. If you can't do things safely I don't recommend doing anything since its that easy to have an accident. Took me 27 years to realise that.
Thank you for your concern. This video was at the very preliminary stage of testing. As you can notice that we did a brief test run only and at very low RPM just to see whether the design will work. As a turbine builders, we are always curious to know hows the engine will be running. If it won't run then it will be a scrap.
We are going to use this engine to drive an electric generator so weight and thrust are not an issue for us. ru-vid.com?event=comments&redir_token=QUFFLUhqbHpDQkwxRUdNSkdSQjE0NjZNTE5wX0hlSEZQQXxBQ3Jtc0trcm5BVnl2aU80cmh3eHVRVlV6eURBOUtyU1otQzFwcTcxY2QwZ1pjQldCLXE3YnZSZDkyeTBteURpeW9Sb2Q4QVNMYzVRSm95VmhXaVlpaUdNOG50ZGNrSUxJUVZCMUU3QTdrQy1rcVliOWNZbFNVUQ&q=https%3A%2F%2Fwww.facebook.com%2Fphoto.php%3Ffbid%3D1503752093192886%26set%3Dpcb.1503752103192885%26type%3D3%26theater&stzid=UgzgBDFY-iIphTk6W_x4AaABAg
Awesome but scary imagine that vice clamp getting loose from vibrations...and the fuel cell right next to the prop might be diesel but still really dangerous!!
Zero till it moves! Turbines generally rated 6 thrust but indeed ESHP = equivalent shaft horsepower including small thrust component. Probably 25 -50 eshp at a guess
I was looking exactly for this idea. What's the power and thrust compared to the turbojet alone? Does it run without overheating the turbine? How long would it run safely? Is this setup more fuel efficient than a piston engine? I know, lots of questions, but I'd like to start experimenting myself. Thanks for posting this video!
The core gas generator produces about 8kg of thrust with this configuration with a free power turbine and proper gear reduction you can easily get 25-30kg in static thrust nevertheless, with turbojet alone, you get less static thrust but at a much higher dynamic hence your aircraft will fly faster.
@KumpolSaechour wow, this is actually amazing. Thank you very much for this. I have been looking to get into experimental turboprop, but everything on the market is either underpowered or overpriced and inefficient. This opens up new avenues for me.
It looks like it's a test propeller - it has no pitch therefore it doesn't make thrust. Usually test propellers are smaller and have hammer-shaped ends (and some pitch to cool the motor but not the large, rotating blade)
I Am Not Claiming I am an aviation engineer or that I know much at all about these things, but is that propeller supposed to flex like that?? While standing behind it, the prop is spinning clockwise (from Left to Right) and, if I'm not mistaken, the way the prop LOOKS like it's shaped it's running backwards and pushing the air forwards away from the guys and the engine, and making it flex like that.
Corey Shier it is the prop moving faster then the cameras frame rate. The camera can only take so many pictures per second and as result the prop appears to be in two places at once and the reversal is caused by the RPMs hitting a power of the frame rate.
It actually is moving faster than our brain can recollect not just the camera. It's like looking at a car rim when it's speeding up after a certain speed it looks like it's going backwards.
Anyone else find it sketch that he's just using the friction of the vise to clamp probably 1/2inch steel plate? Should've bolted it to the table like the vise 🤣
Very, very interesting to see how the look of the propeller changes as the rounds per second changes. I warmly suggest that you always stand **behind** the propeller, NEVER stand to the same level that the propeller is rotating.
As someone who refueled aircraft for 12 years with 10 in the USAF, I have only have one question, why in the world do you have your fuel container 15" from that motor and exhaust? Not a smart move, spend a buck for a few more feet of hose and move that farther away
+Carl Andrews The whole assembly is mounted in a vice, with a 1/4 inch of metal-on-metal friction pressure keeping it from vibrating loose and turning everyone within 10 feet into hamburger. Something tells me safety wasn't a priority.
because not everybody is a USAFBAMF aircraft master refueler with 10 billion years experience capturing planets and shedding his grace upon the rest of us interweb indigents, duh
Carl Andrews ...Thank you for your concern...However...You will be amazed on once we put a turbojet engine inside the aircraft.The fuel tank is about an inch away from the engine...This is the first test run of this turboprop engine in term of turbine builder there is always some elation and exciting to see their engine running for the first time event hough thousands of engine had been built including me no exception! FYI: This engine was designed as a turboshaft and the output shaft only have 3,000rpm max.We were running the engine at idle rpm the prop clocked at some what lower than 1,000rpm and thrust less than 2kg when it was running. This engine was running with heavy fuel "Diesel" fuel not JP4. If you are the expert then you should know the flash point of this heavy fuel.
Yo guys, that gas turbine is awesome. Yet, please believe me, if you don't start wearing earplugs or hearing protection, you won't be able to hear anything except that engine... *all the time 24/7 as long as you are awake.* Earplugs are cheap.
