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This is awesome, thanks man! I’ve always been confused by turboprops where you see the exhaust right behind the propeller. Now I understand - reverse flow!
A benefit of it's reverse flow design is that Ice Vanes can be incorporated under the engine intake and ice chunks or other dense objects will not be able to "make the turn" up into the compressor.
Todo el secreto de un motor así está en la forma de los álabes de estatores y turbinas, en los materiales con los que están hechos y en la caja de reducción planetaria que aprovecha una muy alta velocidad de rotación de la turbina y la transforma en velocidades mucho más bajas con alto torque al eje!!!. Una maravilla tecnológica
How much additional thrust comes from the exhausts than the propellor? Could the exhaust gas not turn some smaller propellors to gain some extra thrust or generate some low end power for the plane. Since its a gas turbine and gas turbines can burn lots of fuel, can they operate different fuel types more efficiently.
it's worthy to note, although stators, according to this video, apparently do increase pressure, they also straighten the airflow, while simultaneously guiding the airflow in order to prevent a compressor stall. I said apparently because I haven't heard personally before that they increase pressure.
Neither have I, but it makes sense. The air after passing a compressor will be rotating somewhat with the direction of the shaft. By straightening the flow, you would essentially slow down the flow along that rotational axis, resulting in some increase in pressure.
How much thrust does the propeller itself generate in relation to the turbine? I still struggle to find an actual importance on the propeller. But I’m a newb.
depends on the engine but a good average is about 16:1 with 35,000 down to 1900rpm though some its 20,000:2000 so 10:1 and some its 50000:1700 it all depends on the engine and application because different props can use the same engine and you're trying to govern that prop for its max efficiency a bigger prop needs to spin slower or the tips can begin to go super sonic which leads to sudden losses in thrust
....A turboshaft rotating a propeller, which provides virtually all of the engine's thrust. That's the same thing with larger turbofans for large airliners (Airbus / Boeing) . The engine core's (gas generator + free power turbines) main purpose is to drive the (enormous) fan ahead of the core that produces over 95 % of the engine,s thrust.
I think it has something to do with balance, to reduce engine torque. If everything is spinning in one direction the plane will essentially want to rotate around it in the opposite direction if that makes sense.
This is amazing! A picture is worth a thousand words, but a moving picture is worth, well... a whole lot more!
You mean like... 1300 words?
Actually writing a research paper about this
PT6As are basically turbo props and PT6Ts are turboshafts. Very well explained. I was a technical specialist in PWC.
You rock for making these! Thanks Mario!
Thank you Mario ! Best video on RUclips explaining Turboprops.
Excellent! I am digging the explanations and the physics and engineering involved
Best explanation I've seen, well articulated.
Great video. The PT-6 is an elegantly designed engine. A good reliable design, with some neat oddities
...we used the PT6B on our Sikorsky S76B models...customers LOVED it!!!
Excellent presentation!
ABSOLUTELY BRILLIANT!
Great video, clear and straight to the point.
Reverse flow is due to the reversal in flow direction in the combustion chamber
I appreciate your video. In the next year I'll be purchasing a new TBM 940. This place uses this engine. Type 66D.
This is awesome, thanks man! I’ve always been confused by turboprops where you see the exhaust right behind the propeller. Now I understand - reverse flow!
woooord
thankyou so much for this easier explanation !!
Great video.
This is awesome! Thank you!
A benefit of it's reverse flow design is that Ice Vanes can be incorporated under the engine intake and ice chunks or other dense objects will not be able to "make the turn" up into the compressor.
Perfect explanations💯
This is a very amazing video,
Helped me in my pilot training!
great lesson!
Very good work with this virtual teardown!
cool
Very good explanation
Great video! Thanks so much!
Thank you for your excellent explanation. I am from Austria and can understand your English very well. Greetings from Austria
Austria! Cool! Hi from Canada.
great video
Amazing thank you for this !
Great vid. Thanks
Outstanding!!!!!
Thank you!
Good job!
Fabulous explanation
Great Video
Awesome!
Amazed. Thanks
Thank you, that was an excellent explanatory video.
Great video...
Thanks
you are the best
Damn this was good (and short)
awesome videos
Thank you so much...❤️❤️ loved the video
Are there any exotic materials inside the PT6 engine? Like Titanium or Inconel?
Thank you for your excellent. I am doing university research and I want to learn more Do you recommend a book on Turboprop
very good
Thank you a lot
How much actual pound thrust is given at the exhaust?.
Todo el secreto de un motor así está en la forma de los álabes de estatores y turbinas, en los materiales con los que están hechos y en la caja de reducción planetaria que aprovecha una muy alta velocidad de rotación de la turbina y la transforma en velocidades mucho más bajas con alto torque al eje!!!. Una maravilla tecnológica
yeah, it is pretty amazing technology.
nice
thank you for the explanation.
I have a doubt, how could the airflow pass from centrifugal compressor to the chamber combustion?
Reverse flow, is not about the intake air, its the gas in the combustion chamber which is reversed.
Thank you
Amazing explanation. I completely understand how the thing works now. Who came up with this? XD
Canadian🇨🇦 engine
Fantastic video and description. Not only easy to understand but also complete and full of informations. Great job!
How much additional thrust comes from the exhausts than the propellor? Could the exhaust gas not turn some smaller propellors to gain some extra thrust or generate some low end power for the plane. Since its a gas turbine and gas turbines can burn lots of fuel, can they operate different fuel types more efficiently.
on some planes like a king air it can be up several hundred pounds of additional thrust
Thanks
Tsnkz sir more viboe,,,
it's worthy to note, although stators, according to this video, apparently do increase pressure, they also straighten the airflow, while simultaneously guiding the airflow in order to prevent a compressor stall. I said apparently because I haven't heard personally before that they increase pressure.
Neither have I, but it makes sense. The air after passing a compressor will be rotating somewhat with the direction of the shaft. By straightening the flow, you would essentially slow down the flow along that rotational axis, resulting in some increase in pressure.
@@user-do5zk6jh1k Very true, because pressure and velocity are inverse with eachother.
What is the besic price of tarboshaft engine
I am wondering why the different rotation direction for rotor of compressor and free turbine? Btw, your videos are awesome, greetings from China
How much thrust does the propeller itself generate in relation to the turbine? I still struggle to find an actual importance on the propeller. But I’m a newb.
The turbine doesn't generate thrust. It powers the propeller which generates thrust for the aircraft.
How about a video on how the gearbox works!
Hello can we say that the PT6T-3 engine and the PT6A-67F engine are the same?
Not sure sorry
@@PilotEffect hello thanks for your reply, now i know the answer.
And they aren't equal, i changed e mails with Pratt &Whitney.
PT6T is a turboshaft engine and PT6A is a turboshaft.
ratio between drive shaft & propeller (amount of reduction)?
depends on the engine but a good average is about 16:1 with 35,000 down to 1900rpm though some its 20,000:2000 so 10:1 and some its 50000:1700 it all depends on the engine and application because different props can use the same engine and you're trying to govern that prop for its max efficiency a bigger prop needs to spin slower or the tips can begin to go super sonic which leads to sudden losses in thrust
Whaaaaat
I never knew that, so turboprop is basically a jet engine spinning a propeller?? whaaaaaat
....A turboshaft rotating a propeller, which provides virtually all of the engine's thrust.
That's the same thing with larger turbofans for large airliners (Airbus / Boeing) . The engine core's (gas generator + free power turbines) main purpose is to drive the (enormous) fan ahead of the core that produces over 95 % of the engine,s thrust.
Sir why rotation of power turbine and gas generator is in opposite direction
Please explain
I think it has something to do with balance, to reduce engine torque. If everything is spinning in one direction the plane will essentially want to rotate around it in the opposite direction if that makes sense.
Do you have a channel on telegram
no sorry
a banana republic!
F my profesor, this is all I needed
This comment made the whole yt channel worth the effort. Awesome. gg
❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤
PT = Popular Turboprop?
Hi
Hi
Eclipse 550 twin jet has better fuel economy than Baron 58 and Cessna 401 piston twins. Therefore turboprops should not exist.
Turbulence
Thank you!