ATR systems - Powerplant part 2

ATR systems - Powerplant part 2 - Gas turbine

Рет қаралды 36,138

Күн бұрын

This is the second video in a series of four videos about the powerplant used by ATR aircraft. It gives a description of the heart of the engine, the gas turbine.
This video is not meant to give a fully detailed description of the system, but to give you an idea about who it works. Despite my effort to be as exact as possible, I might have made mistakes. If you find errors, please let me know, and I will address the corrections here:
1) The drawings show the turbine blades installed in the wrong direction. When viewed from behind, the HP turbine and the power turbine are rotating clockwise, and the LP turbine is rotating counter-clockwise. Here is a video from the engine manufacturer: • PW127XT engine series:...
2) At 06:30, the location of the ITT sensor is wrong. It is located behind the LP turbine.
3) At 11:02, it's not made clear that a low oil pressure indication from any of the two detectors will trigger a low oil pressure alert.
4) At 21:53, when describing ECU failure, the text in the "ECU" box changes to "EEC." It should be "ECU."
Links and attributions:
Engine part 1, general: • ATR systems - Powerpla...
Engine part 3, propeller: • ATR systems - Powerpla...
Engine part 4, procedures: • ATR systems - Powerpla...
ATR fuel system: • ATR systems - Fuel system
ATR take-off performance: • Aviation explained: Ta...
Engine spark ignitor test: • Turbine engine spark i...
ATSB, ATR clarify ignition settings: www.flightglobal.com/airlines...
Follow Fly with Magnar: / 1140864699685560

Пікірлер: 56

@balajisubramaniam1644 Жыл бұрын

Too good an explanation. A lay man like me has become an aeronautical engineer. A good teacher . Salutation to you

@fabioleonidasromayrubio2218 2 жыл бұрын

This second part is still better than the first one. Congratulations Captain.

@18gnpg33 Жыл бұрын

Now, when MSFS2020 has released ATR 42/72 these videos for us flight simmers are invaluable! Thank you Mr. Magnar!

@kspraseed 2 жыл бұрын

Hi Capt location of ITT sensor in PW127M is at T6 which means it’s in between LP turbine and Power Turbine.. Thank you Capt your videos makes my studies easy…Subscribing from INDIA…

@FlywithMagnar 2 жыл бұрын

Hi, you are absolutely right. My mistake!

@iamra_n3189 Жыл бұрын

Absolutely brilliant work, Captain Magnar!

@boyvanurk9854 Жыл бұрын

Hello Magnar, you make great video's! We didn't have this in the past and I think your explanations can be very helpful in understanding the systems. Regards from a high time ( retired) turboprop pilot 🙂.

@fightingfulcrum8108 3 жыл бұрын

Excellent, thank you Capt.

@aviationtalkandtutorials2456 3 жыл бұрын

Best explanation of turbine engine!

@gabrielvieirapereira6759 Жыл бұрын

Amazing video! Helped me a lot for my college presentation.

@FlywithMagnar Жыл бұрын

Glad it helped!

@ebiketraveler9589 2 жыл бұрын

Thank you fore sharing your acknowledgment!!

@estrelangeles677 2 жыл бұрын

God bless you Capt! new subscriber here..

@tomjcarroll Жыл бұрын

Must have videos for any budding ATR aviators in MSFS. Understand your aircraft!

@user-rm4sx3fr3p Жыл бұрын

Wonderful content. Thankyou

@lpmceplmb 3 жыл бұрын

Eager of watching the next videos. Great job

@jorgedr74 3 жыл бұрын

Excellent

@andrewmmopi9193 3 жыл бұрын

Absolutely wonderful, Capt Magnar

@tydarwin8812 3 жыл бұрын

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@karsynanders8224 3 жыл бұрын

@Ty Darwin instablaster ;)

@tydarwin8812 3 жыл бұрын

@Karsyn Anders Thanks for your reply. I found the site thru google and I'm in the hacking process atm. Looks like it's gonna take quite some time so I will reply here later when my account password hopefully is recovered.

@tydarwin8812 3 жыл бұрын

@Karsyn Anders It worked and I now got access to my account again. Im so happy! Thanks so much you saved my account!

@karsynanders8224 3 жыл бұрын

@Ty Darwin happy to help :)

@sherwinsalvatori6997 3 жыл бұрын

University explanation well done

@radhakrishnannair2143 Жыл бұрын

Excellent 👏👏👏

@chioujun 2 жыл бұрын

Thank you very much!

@yunque033 2 жыл бұрын

Tks

@joseluisfernandez6937 4 ай бұрын

I think the SP of pressure switch at 13.06 minute is a mistake. Would't it be 250 psi instead of 25?. Te pressure at the combustion chamber is 290 psi

@riyaroy5437 3 жыл бұрын

Waiting for avionics series of ATR 72-600 🙏🙏🙏

@FlywithMagnar 3 жыл бұрын

They will come, but I cannot promise when.

@User-ti8qg 3 жыл бұрын

Hi Capt, When the MAN IGN PB is selected, whether it provides continuous ignition even after NH crossing above 60 %?

@FlywithMagnar 3 жыл бұрын

If you mean the guarded MAN IGN pushbutton shown on 18:20, then the answer is: You don't use MAN IGN when you have an engine flame out. The engine has automatic ignition when NH drops below 60%, and therefore, you are not required to activate manual ignition. MAN IGN must only be used in specific cases shown in the checklist for EEC fault (18:40).

@juanespinosa9271 2 жыл бұрын

Hi, nice and interesting video, Do you know if reducing or increasing ITT temp has any implication on nacelle overheat when you have a tail wind

@FlywithMagnar 2 жыл бұрын

It's hard to say. When you increase ITT, it's because you increase the power, and this will increase the velocity of the exhaust causing it to move further away from the nacelle. Maybe. It boils down to the exact direction and velocity of the wind, and the residual temperature in the engine when it is shut down.

@juanespinosa9271 2 жыл бұрын

Thank you Capt !! I really appreciate your response

@eduardodaquiljr9637 26 күн бұрын

How the compressor turbine being cooled down?

@FlywithMagnar 25 күн бұрын

We run the engine in idle for at least 2 minutes after landing. After shut down, the engine will cool down by radiating heat to the atmosphere. Parking the aircraft into the wind will help.

@bousbinasoufiane5250 2 жыл бұрын

Il ya une explication ou traduction en français pour bien comprend

@rightchoice5501 Жыл бұрын

Your video is awesome sir, I have One question, there is an 7 bearings, in power shaft which bearing is used, LPC & LPT bearing type, HPC & HPT bearing type.

@FlywithMagnar Жыл бұрын

I'm sorry, but I don't know. An engineer might have the answer.

@rightchoice5501 Жыл бұрын

@@FlywithMagnar ok thank you sir

@saurabhgoel1995 2 жыл бұрын

My doubt is why there is an 2.15 seconds delay in Auto-Featheing on ATPCS sequence

@FlywithMagnar 2 жыл бұрын

This prevents the propeller from being feathered in case the engine failure happens before V1 and the take off is rejected. This provides drag from the propeller, making it easier to maintain directional control.

@shivapoudel9059 2 жыл бұрын

@@FlywithMagnar so if propeller is not feathered..my confusion is.. low pitch light will come or not in failed unfeathered engine while rejecting?

@seanoconnor8822 3 жыл бұрын

Very nice thank you Captain, where are you flying at the moment?

@FlywithMagnar 3 жыл бұрын

I'm based in Bangkok, but not flying. As long as there are (almost) no tourists coming, there's no job.

@seanoconnor8822 3 жыл бұрын

Ah that's a pity. Do you instruct at AATC?

@FlywithMagnar 3 жыл бұрын

No, they have plentiful of instructors, but no customers. Because of Covid-19, Thailand requires 14 days quarantine for all travellers from abroad. That prevents the airline companies from sending their pilots to Bangkok.

@seanoconnor8822 3 жыл бұрын

Yes, true. We are using Singapore at the moment

@charlybrowntube 3 жыл бұрын

Why ATRs does not have auto thrust?

@FlywithMagnar 3 жыл бұрын

Well, the engines do in fact have automatic power management. It works when the power levers are set in the notch. When the power levers are in other positions, it's the pilot who has control.

@charlybrowntube 3 жыл бұрын

@@FlywithMagnar But, can it follow a IAS set point? I do not fully understand how you can set a desired IAS at cruise mode. Thanks for your answer. Congratulation for this nice channel.

@FlywithMagnar 3 жыл бұрын

Jetliners cruise at a given Mach number in order to maintain separation from traffic ahead and behind. Therefore, they need an autothrottle. Turboprops don't have this speed limitation. We maintain constant cruise power and IAS is what it gets. Furthermore, IAS depends heavily on the cruise level. We have tables in our Quick Reference Handbook showing which cruise speed we will maintain. For example, to maintain TAS 260 kt, IAS must be 225 kt at 10,000 feet, and 192 kt at 20,000 feet.