Great video of a very technical job, no way I could do a high speed test in one of those beauties without pulling back on the yoke and going for a quick spin around the area 🙂
I'm definitely recommending this channel to my A&P school. Your content is great to show the in field problems and work the students/future mechs will face. Great idea for a channel guys.
My School is the Aviation Institute of Maintenance in Chesapeake Virginia. I'm almost done with the 18 months and plan to take the Airframe and powerplant tests as soon as possible. As a future mech myself I think you again.
James your employer should be very proud of you,amazing what you covered in a single festive day,fitting those de-icer boots is a messy operration and just lining them up looks tedious too,I had visions of you rotating that PC-12 ! another great video sir.
Hello Guys, I am a fan of your professional work, and what surprised me is the shawarma restaurant, as shawarma is one of the famous meals in Riyadh, the largest and most famous shawarma restaurant we have is called Mama Nora. You must try it one day if you decide to visit the Kingdom of Saudi Arabia. Thank you again
I love that you get to test the brakes yourself! I have to wait for a pilot to do it here, and depending on the pilot they may even come back with more issues! Happy Holidays!
Thanks Eric! I'm lucky we are such a small company that the mechanics get to do a lot of pretty neat things. Sometimes I get to go on test flights for troubleshooting issues that we can't duplicate on the ground.
Congratulations, James! You have a Brazilian guy following your channel now. Nice videos and also it's a class for those people who are trying FAA certification, like me here in California!
hi from maldives you just awesome :) why cant you post a videos step by step ex fcu removal ,bleed off valve, prop removal and installation, cable change and all rigging. in future you can become a instructor though.
Hi James, thanks for the great insights. Really enjoy watching the videos. Do you know by chance how exactly the torque measuring on the Pilatus works, somehow the engine oil pressure is used to measure it, but thats all I know.
Luca, I could get into more detail in a video but essentially there is a small orifice withing the reduction gearbox that oil fills and a pressure transducer mounted in the same location measures the torque.
James Sullivan If it isn't to complicated getting there, I would really like to see it. So after all the torque indicated on the MFD is just a pressure relative to the one in the reduction gearbox? It helps, I never knew what to do with the 44.3 psi limit and why the company didn't opt for the 0-100% scale like with the NG on the MCD, but I understand where the value comes from now. Thanks
I can definitely show where the torque is measured in the video. My understanding is that Pratt and Whitney uses the torque to measure how much power was being transmitted to the output of shaft of the engine. NG instead is a reading of the gas generator speed which does not directly relate to the output of the engine. For example, if the aircraft is in stable cruise and suddenly more bleed demand is requested from the engine (de-ice turned on) or more load placed on the accessory gear box (heavy electrical loads on the generators) the gas generator would need to do more "work" in order the maintain the cruise torque setting.
James Sullivan Alright, yes but i am asking myself why the torque as stand alone value is not displayed in percent to the limit instead of psi. So 0-100% TQ 0-~900° ITT and 0-100% NG I ll be at the factory in Switzerland this month and ask them, because i dont see any description besides this one I just found in the POM sec 7-10. Its pretty much what you said. A torque limiter is installed on the engine at the torque transmitter boss on the forward engine case. Within the unit is a sealed bellows connected directly to the torquemeter oil pressure outlet, a chamber connected to the reduction gearbox to provide gearbox static pressure and to a drain port on the thrust bearing cover, a balance beam, and a pneumatic pressure orifice. Oil pressure proportional to engine torque is applied through cored passages in the reduction gearbox to the sealed bellows in the limiter body. The bellows is mechanically connected to the balance beam and to the controlling spring. With an increase in torque pressure, above the control spring setting, the balance beam adjusts to compensate for this increase and causes the pneumatic pressure orifice to open and bleed off Py air. As Py air pressure is bled off, the fuel flow from the FCU is reduced by closing the metering valve, causing engine speed and hence engine torque to decrease until engine torquemeter pressure is balanced by the torque control spring pressure; at this time the Py pressure orifice close. Again thanks for the help and keep up the good videos
Cool channel. I subscribed a couple days ago. Finally in on the ground floor! Lol. Question: that boot replacement seems like such a "one off" type thing. Is it something you have done before or have to do much? I understand the manufacturer will have a procedure spelled out and you guys are pros. But it seems like you guys have to have so many skill sets it seems like something like that might have a bit of a learning/technique curve. It seems like more of an art project. I guess I look at a job like that and think, man that boot probably ain't cheap. I sure wouldn't want to booger the job on that one. I guess slow and careful does it. Love the PC-12s!!
Thanks! You are right about it being an expensive part and something we don't do very often (maybe 1-3 times a year). We need to change them anytime they are damaged excessively which happens every few thousand flight hours. We can only install so many patches before they need to be replaced. We are definitely not experts at it but you are correct, follow the manual and take your time. It does feel like an art project too lol. Thanks for subscribing!
Is any a&p certified mechanic allowed to do a high-speed taxi? It looked pretty fun, also were you at a high enough speed to take off if you had just pulled back on the sticks?
Great video of a very technical job, no way I could do a high speed test in one of those beauties without pulling back on the yoke and going for a quick spin around the area 🙂
when I love what I'm doing, it is little bit to much to called it a "work". people like you is rare this days..
I'm definitely recommending this channel to my A&P school. Your content is great to show the in field problems and work the students/future mechs will face. Great idea for a channel guys.
Thanks Kyle! Which a&p school?
My School is the Aviation Institute of Maintenance in Chesapeake Virginia. I'm almost done with the 18 months and plan to take the Airframe and powerplant tests as soon as possible. As a future mech myself I think you again.
Congrats! Good luck on the tests. Let me know if you need any help and don't forget to apply at surf when you have your ticket
James Sullivan what do you mean apply at surf when he has the the ticket?
James your employer should be very proud of you,amazing what you covered in a single festive day,fitting those de-icer boots is a messy operration and just lining them up looks tedious too,I had visions of you rotating that PC-12 ! another great video sir.
Hello Guys, I am a fan of your professional work, and what surprised me is the shawarma restaurant, as shawarma is one of the famous meals in Riyadh, the largest and most famous shawarma restaurant we have is called Mama Nora. You must try it one day if you decide to visit the Kingdom of Saudi Arabia. Thank you again
I love that you get to test the brakes yourself! I have to wait for a pilot to do it here, and depending on the pilot they may even come back with more issues! Happy Holidays!
Thanks Eric! I'm lucky we are such a small company that the mechanics get to do a lot of pretty neat things. Sometimes I get to go on test flights for troubleshooting issues that we can't duplicate on the ground.
30+ years fixing airplanes of all kinds and sizes. That's a good shop you have there. Well done.
Congratulations, James! You have a Brazilian guy following your channel now. Nice videos and also it's a class for those people who are trying FAA certification, like me here in California!
What's important is working in a place that cares about you with a positive team that cares about you too... Team #JS
Haha that's the spirit! Seriously though one of the biggest things to look for.
Merry Christmas James, Have a Happy but safe New Year
literally Casey Neistat of planes.
But far more inspiring and hopefully he never sells out like Casey.
sells out? o.O
James you and your tame are a star mate 👍🏽👍🏽
nice!
very good video. way to go James!
What is shwarma? And did I spell it right. I'm glad Vincent showed up, twas pleasantly surprised
Love these vlogs mate, keep it up!!
Keep up the good work love the videos
Christmas eve and Vence came in wearing shorts and sandals 😂
Can you show us how to do the prop de ice boots?
hi from maldives you just awesome :) why cant you post a videos step by step ex fcu removal ,bleed off valve, prop removal and installation, cable change and all rigging. in future you can become a instructor though.
my gramps builds planes in his garage the expermentals
these are dope vids you got my sub (:
1300L the devil in a can when it comes to boots that are glued with it.
Hi James, thanks for the great insights. Really enjoy watching the videos. Do you know by chance how exactly the torque measuring on the Pilatus works, somehow the engine oil pressure is used to measure it, but thats all I know.
Luca, I could get into more detail in a video but essentially there is a small orifice withing the reduction gearbox that oil fills and a pressure transducer mounted in the same location measures the torque.
James Sullivan If it isn't to complicated getting there, I would really like to see it. So after all the torque indicated on the MFD is just a pressure relative to the one in the reduction gearbox? It helps, I never knew what to do with the 44.3 psi limit and why the company didn't opt for the 0-100% scale like with the NG on the MCD, but I understand where the value comes from now. Thanks
I can definitely show where the torque is measured in the video. My understanding is that Pratt and Whitney uses the torque to measure how much power was being transmitted to the output of shaft of the engine. NG instead is a reading of the gas generator speed which does not directly relate to the output of the engine. For example, if the aircraft is in stable cruise and suddenly more bleed demand is requested from the engine (de-ice turned on) or more load placed on the accessory gear box (heavy electrical loads on the generators) the gas generator would need to do more "work" in order the maintain the cruise torque setting.
James Sullivan Alright, yes but i am asking myself why the torque as stand alone value is not displayed in percent to the limit instead of psi. So
0-100% TQ
0-~900° ITT and
0-100% NG
I ll be at the factory in Switzerland this month and ask them, because i dont see any description besides this one I just found in the POM sec 7-10. Its pretty much what you said.
A torque limiter is installed on the engine at the torque transmitter boss on the forward engine case. Within the unit is a sealed bellows connected directly to the torquemeter oil pressure outlet, a chamber connected to the reduction gearbox to provide gearbox static pressure and to a drain port on the thrust bearing cover, a balance beam, and a pneumatic pressure orifice.
Oil pressure proportional to engine torque is applied through cored passages in the reduction gearbox to the sealed bellows in the limiter body. The bellows is mechanically connected to the balance beam and to the controlling spring. With an increase in torque pressure, above the control spring setting, the balance beam adjusts to compensate for this increase and causes the pneumatic pressure orifice to open and bleed off Py air. As Py air pressure is bled off, the fuel flow from the FCU is reduced by closing the metering valve, causing engine speed and hence engine torque to decrease until engine torquemeter pressure is balanced by the torque control spring pressure; at this time the Py pressure orifice close.
Again thanks for the help and keep up the good videos
0:07 theres a beautiful one behind you! =)
Cool channel. I subscribed a couple days ago. Finally in on the ground floor! Lol.
Question: that boot replacement seems like such a "one off" type thing. Is it something you have done before or have to do much? I understand the manufacturer will have a procedure spelled out and you guys are pros. But it seems like you guys have to have so many skill sets it seems like something like that might have a bit of a learning/technique curve. It seems like more of an art project.
I guess I look at a job like that and think, man that boot probably ain't cheap. I sure wouldn't want to booger the job on that one.
I guess slow and careful does it.
Love the PC-12s!!
Thanks! You are right about it being an expensive part and something we don't do very often (maybe 1-3 times a year). We need to change them anytime they are damaged excessively which happens every few thousand flight hours. We can only install so many patches before they need to be replaced. We are definitely not experts at it but you are correct, follow the manual and take your time. It does feel like an art project too lol. Thanks for subscribing!
Is any a&p certified mechanic allowed to do a high-speed taxi? It looked pretty fun, also were you at a high enough speed to take off if you had just pulled back on the sticks?
He also has a commercial pilots license.
Will Wiilliam thanks, I know. He is also also my brother.
lukas sullivan that response thou 😂
yeah any mechanic can high speed taxi if their company let's them. I kept it below take off speed though... very tempting
James Sullivan could they really blame you if you did PC-12s are beautiful planes
do you just work on pc12s just discovered the channel!
Alex I also work on Piper Cubs on the side
Do you dilute the 1300L with toluene or anything?
enjoy then videos
My son-in law flies pc12 for medi-vac says its an excellent plane
Steven, it is a terrific aircraft. Fun to work on as well. Great utility for a variety of missions
He flies it in northern ontario canada -40 temps no problems
Please wear gloves whilst handling toluene guys that stuff is pure cancer, Love your work!
is it just me or....I've noticed most of your videos are on a Saturday O.o
Are those contractors A/P certified?
Yup
11:45 so true .... ++1
So hold up they are glued on by 3m glue, and they just degreased it...and you run your oily hand over it...wtf?
just remeber if u take the plane up u need to come back down yeha
are you a pilot tooo?
Yea
No fuel barrier?
It was applied just not included in the video.
11:30 the real crux
IPC=illistrated parts catalogue
What has happened to this guy
7528
Money rules all, when you're poor and/or in debt. Later on you can maybe try to find a job that's pleasant. Maybe.