Helicopter Track and Balance Training | Airbus EC135

Поділитися
Вставка
  • Опубліковано 22 гру 2024

КОМЕНТАРІ • 97

  • @apmech46166
    @apmech46166 11 місяців тому +2

    Fixed wing mechanic here, trying to learn about track and balance. This video was awesome bro, thanks!

  • @johnmackenzie5136
    @johnmackenzie5136 Рік тому +1

    Great video. I'm not an aircraft maintenance person of any sort, but I did work in vibration analysis and found this informative and easy to follow along with. Good job.

    • @HelicopterMaintenance
      @HelicopterMaintenance  Рік тому

      Thank you for the kind words. This kind of stuff will humble me as soon as I think I know what I’m doing. It’s crazy. What kind of vibration analysis have you been involved in?

  • @adriaraventosruiz7943
    @adriaraventosruiz7943 Рік тому +2

    Thanks for the video I've learned a few things I didn't know. Also good charts that you made

    • @HelicopterMaintenance
      @HelicopterMaintenance  Рік тому +1

      Thank you. I’m trying to put the track charts on google drive or something for all to use. I just need the time to figure it out.

  • @rutledgefuller2668
    @rutledgefuller2668 Рік тому +2

    Great video. I teach at an aviation school and going to show your video to my students.

    • @HelicopterMaintenance
      @HelicopterMaintenance  Рік тому +3

      Awesome! This aircraft was a simple one, so the normal ideas make sense. I hope this helps your students. When I went to A&P school, helicopter training was hard to find. Thank you for watching and Sharing, I appreciate you.

    • @HelicopterMaintenance
      @HelicopterMaintenance  Рік тому +1

      How has the training of new A&P mechanics been going?

  • @biggyboyy1
    @biggyboyy1 Рік тому +2

    A tail rotor balance video would complement this video nicely. Your explanations are concise and to the point. Much appreciated. I am now a subscriber to your channel. Great Video, thank you.

    • @HelicopterMaintenance
      @HelicopterMaintenance  Рік тому

      Thanks. I’m working on a tail rotor balance video. I should have it up after I wrap my brain around it. Ha!

    • @HelicopterMaintenance
      @HelicopterMaintenance  Рік тому

      I need to get involved in another tail rotor balance. I need more data. It may be a little while.

  • @simonkettle1221
    @simonkettle1221 Рік тому +1

    Great video! I think you do a great job of outlining the issues and principles behind MR T&B. This aside, I would not recommend adjusting the yellow (Master) blade as the manual explicitly forbids it "Do not adjust the rotating control rod of the reference main rotor blade (Yellow marking)". This can cause issues with either high or low autorotation rpm. On other types, making this kind of adjustment requires re-checking the auto NR.

    • @HelicopterMaintenance
      @HelicopterMaintenance  Рік тому

      Thanks for the input. I agree with not changing the yellow pc link normally.

  • @flyrightflight
    @flyrightflight Рік тому

    Thanks for these videos! I have my airframe and am working on my power plant and want to get into helicopters. These videos make the basic stuff in class mean so much more

  • @HELI-DNA
    @HELI-DNA 11 місяців тому

    Very informative and well explained! I'm not an aircraft engineer myself, although I am a qualified earth moving techcincian (diesel) & heli pilot, so I found this very interesting and can imagine the satisfaction when getting the blades close to perfect after an exercise like that. Thanks for sharing.

  • @gregoryspadini7332
    @gregoryspadini7332 Рік тому +1

    Cool video Sir. thank you.
    Also to remind on the EC135 the mounting sequence of the blades is very important, since it affects the lead/lag.

  • @ПавелАнтонюк-й4ч
    @ПавелАнтонюк-й4ч 10 місяців тому +1

    Friend, cool video, Thank you! Please make a video on how to use Micro Vib 2.

    • @HelicopterMaintenance
      @HelicopterMaintenance  10 місяців тому

      Thanks for the kind comment. I plan on eventually making a video on the Micro Vibe 2, but I only know the basics. I need to learn a little more about some of the options.

    • @ПавелАнтонюк-й4ч
      @ПавелАнтонюк-й4ч 10 місяців тому +1

      Thanks for the answer. You are doing important work. Good luck.🤝

  • @jonkinter8822
    @jonkinter8822 Рік тому +1

    Thank you for the spread sheets.

  • @qweq9972
    @qweq9972 Рік тому

    Great video! I was looking for some videos/articles to understand better track&balance. Hope to see more videos from you! Greetings from Polish Medical Air Rescue aircrtaft mechanic ;)

    • @HelicopterMaintenance
      @HelicopterMaintenance  Рік тому +1

      Thank you! I’m glad you’re here.

    • @HelicopterMaintenance
      @HelicopterMaintenance  Рік тому +1

      I read your comment a long time ago and forgot where you were from. I appreciate that you watch my videos all the way from Poland! Much respect. And greetings from Virginia, US.

  • @simpledude4065
    @simpledude4065 Рік тому +1

    Thanks again, really good, very educational

    • @HelicopterMaintenance
      @HelicopterMaintenance  Рік тому

      Thank you for the comment, I’m glad people are finding this video useful

  • @Wolfhound_81
    @Wolfhound_81 5 місяців тому

    Just a simulator pilot here with some limited RL time. Really enjoyed the video as it explained the concept well. The only thing I'm missing is how the measurement equipment works technically. That'd be interesting for ppl like me who want to dive down the rabbit hole.

    • @HelicopterMaintenance
      @HelicopterMaintenance  5 місяців тому

      Thanks. I’ll make a video on that in the future, but I’ll have to do more research. It’s complicated but not if that makes sense, a lot of time has gone by since I really understood how it works.

  • @mostefatayebcherif6798
    @mostefatayebcherif6798 9 місяців тому +1

    Hello sir , thanks for this important presentation. I have a question: if the pilote say that he has vibration lateral in flight , for you it's better to begin with inspection of different rotating parts like main rotor , tail rotor , transmission , bearing before track and balance .
    Thanks sir.
    Best regards.

    • @HelicopterMaintenance
      @HelicopterMaintenance  9 місяців тому +1

      I would ask if the vibration just started or did it slowly get worse. Then do a general visual inspection of the blades to see if there’s damage or cracks. Look at where the blade mounts to the hub and the blade dampers. Look at the star flex for cracks. If everything looks good then set up the track and balance equipment and look at the lateral out of balance on the ground and a hover (as long as it’s safe to fly). If you don’t see any damaged parts then there could be water in the blade. Good luck. Let me know if you find anything crazy.

    • @mostefatayebcherif6798
      @mostefatayebcherif6798 9 місяців тому +1

      @@HelicopterMaintenance hello everybody, thanks sir for the feedback, really we have the same analysis.
      I wish you success and happiness in your life.
      Best regards

  • @mostefatayebcherif6798
    @mostefatayebcherif6798 Рік тому +1

    Good morning sir , thanks for this presentation.

    • @HelicopterMaintenance
      @HelicopterMaintenance  Рік тому +1

      Thank you. I am doing what I can to help out the maintainers out there. Just doing my part.

  • @alexseis4858
    @alexseis4858 5 місяців тому +1

    Hello, can you please explain what happens to the blade if you bend the trailing edge trim tab down or up? i´m student of atpl(h) and the book
    sed:
    Bending the trim tab down will cause the blade to track down, if the blade is seen to be tracking high.
    Bending the trim tab up will cause the blade to track up, if the blade is seen to be tracking low
    but i think is ; bending down will cause the blade go up from the aerodinamic
    and other book is the same that i think.
    thanks!

    • @HelicopterMaintenance
      @HelicopterMaintenance  5 місяців тому

      If you bend the tab up then the blade will fly higher, bending down will cause the blade to fly lower. I think it works like bending the tab up causes the trailing edge to have a higher downward force causing the leading edge to fly higher. If that makes sense.

    • @alexseis4858
      @alexseis4858 5 місяців тому +1

      @@HelicopterMaintenance it dosn´t work like a Flap of an aeroplane (flap down + angle of attack) wing goes up, is not the same concept , from what I can understand? this is the info from my book : ( the other info is from the cuestion bank im confused )
      Trim tabs are made from thin sheets of steel or aluminium which can be bent by hand. Bending a tab down increases the camber of the blade, thus increasing its lift; the blade will fly higher. Bending the tab up reduces the blade's camber, thus reducing its lift; the blade will fly lower.
      Blades may have to be re-tracked during their lifetimes as bearings and links become worn. A new blade also needs to be tracked.
      thanks for your time!!

  • @seancarrington9231
    @seancarrington9231 19 днів тому +1

    Have you noticed the lateral vibration limit is 0.06ips and 0.1ips, is that the band the final value must be in, so if you have a value under 0.06ips would that be out of the required band? Hear so many conflicting opinions on this one.

    • @HelicopterMaintenance
      @HelicopterMaintenance  18 днів тому

      0.1 is the limit while you are doing track and balance flights, the final should be below 0.06. When you adjust the track with PC links or trim tabs the lateral vibration changes. Not by a lot but it will change. The first thing you want to do is check the track on the found and if the vibration is not high then hover the aircraft and check the track and lateral vibration. If the track is good the add weight. If the track is bad the adjust pc links until the track is good then adjust weight if the lateral is out. Then check high speed track and adjust tabs until the track is good. Then check the lateral in a hover again and adjust weights until the vibe is good. All of this info is in my opinion. I hope this helps. Thank you for the comment and watching.

    • @HelicopterMaintenance
      @HelicopterMaintenance  18 днів тому

      I’ll double check the numbers on the maintenance manual tomorrow and get back to you. Things change a lot as you inow

    • @HelicopterMaintenance
      @HelicopterMaintenance  15 днів тому +1

      Sorry for the delay. I see what you’re saying after looking in the manual. To clarify, the lateral vibration limit while performing track and balance operations is 0.4 IPS. And the final lateral vibe limit is a range 0.06-0.1 IPS in a hover in ground effect. The lateral vibe limits at 80 and 120Kts is 0.1 IPS. I reached out to my Airbus tech rep as to why there is a range. I remember the lat limit to be 0.06 in the past, and we would always try to be below that limit. I’ll let you know when I hear back. Regards. HMHD

    • @seancarrington9231
      @seancarrington9231 14 днів тому +1

      @ thanks that’s really helpful. I’m reading the AMM and wondering why it’s 0.06-0.1. It’s kinda weird we often get it below .06 IPs

  • @jonkinter8822
    @jonkinter8822 Рік тому +2

    Where did you find those track and balance work sheets? Thanks for the video.

    • @HelicopterMaintenance
      @HelicopterMaintenance  Рік тому

      The worksheet for vibration is in the maintenance manual, AMM 18-10-00, 5-1 and 18-11-00, 5-2 (which is kind of strange because that’s the tail rotor balance section). The track worksheet I made, it’s a spreadsheet that I typed up in excel. Something like it used to be in the Maintenance Manual but I think it was removed a while ago, I cannot find it in there now. I hope this helps.

    • @jonkinter8822
      @jonkinter8822 Рік тому +1

      @@HelicopterMaintenance could you send your spread sheet from exel?

    • @HelicopterMaintenance
      @HelicopterMaintenance  Рік тому

      @@jonkinter8822 for sure. I’m traveling, give me a day or so

    • @HelicopterMaintenance
      @HelicopterMaintenance  Рік тому

      @@jonkinter8822 I put the excel sheet on google docs, the link is below. Check it out and make sure that you can access the sheet. I am new at google docs.
      docs.google.com/spreadsheets/d/14l2oGmjDDcVlC47vj5sQPPtYZfn5SMi0/edit?usp=sharing&ouid=100878337298908589899&rtpof=true&sd=true

    • @HelicopterMaintenance
      @HelicopterMaintenance  Рік тому +1

      Here is a copy of the old tracking sheet that used to be in the maintenance manual, drive.google.com/file/d/1izgA1SdUxJe-N4fvckArvom0zqORcQ92/view?usp=sharing

  • @dannywilliamson3340
    @dannywilliamson3340 Рік тому +1

    Good stuff!! Choppers are such fine machines. Do you still put a piece of reflective tape on the bottom of the blade tips that the instrument can see? Or is that old technology?

    • @HelicopterMaintenance
      @HelicopterMaintenance  Рік тому

      In the past I used a Vibrex 2000, this machine had a strobe so you had reflectors that you had to install on the underside of the blades. The reflectors were different colors and different shapes. Shapes like / \ | -.
      I have also used the RADS, but very little. With the rads you use a camera and the tips of the underside of the blades is painted black.
      I have also used Chadwick 8500, but I honestly forgot almost everything about that machine when using it to track a main rotor.
      The new track and balance machines are pretty high tech and can measure an out of balance down to 0.01 ips or better.
      Thanks for watching! I appreciate the comments and questions.

    • @paulcantrell01451
      @paulcantrell01451 7 місяців тому

      @@HelicopterMaintenanceWhen we've used Chadwick in the past, I always cursed them. Lots of cycles trying to find the sweet spot. Some units like the Vibrex we'd get it in 2 or 3 cycles. I'm not quite old enough, but some of the guys I've worked with were old enough to do track with chalk and broom handles? I think?
      Some shops will get it to .2 and they're done. And yeah, we all hate those guys! And some guys... just aren't talented. It's great working with someone who knows what he's doing...

    • @HelicopterMaintenance
      @HelicopterMaintenance  7 місяців тому

      @paulcantrell01451 I really liked the Vibrex 2000. And to be honest, I don’t even remember if it gave me corrections. I would just use it to get the measurements. I work with a lot of guys who will get a helicopter vibration just below the limits and call it quits, sometimes that’s just the way the operation has to work. If you have the opportunity to dial it in, I recommend doing that because it might fly for another two years And a borderline vibration will wear out a whole lot of parts. Thanks for your comments, my friend.

  • @bobrobi4328
    @bobrobi4328 Рік тому +2

    Question why was this aircraft so far out of track and balance

    • @HelicopterMaintenance
      @HelicopterMaintenance  Рік тому +1

      Great question. Honestly I don’t have an perfect answer. When I get a chance I’ll go back and research the maintenance that was done before the track and balance. I think the periodical was done so more than likely the blade damper support bearings were replace. Also maybe 1 or more PC link bearings were replaced. Possibly the bearing block. I’ll get back to you. To be honest, the .6 ips in a hover seems high but there’s a chance the vibe decreased with airspeed. But that’s doesn’t really matter, you would never check that , you would start with checking the ground and hover. The flight crew that I work with regularly are pretty good at letting me know if there’s a vibration that they don’t like. Thank you for the question.

    • @HelicopterMaintenance
      @HelicopterMaintenance  Рік тому

      Oh I forgot to mention, we just checked the track and balance after other maintenance almost 500 hours and 12 months after this. And even after changing pu foils on some of the blades the vibration and blade track was amazingly low, no adjustments needed. Also, I remember that prior to the T&B in this video all the pu foils were changed and the paint on the blades was touched up. A couple small spots of grey and a decent amount of yellow near the tips of the blades.

  • @jonkinter8822
    @jonkinter8822 Рік тому +1

    Its me again.I have questions about paint 40 mm and 60mm and Din 4mm viscosity meters.AMM 62-11-00,?

    • @HelicopterMaintenance
      @HelicopterMaintenance  Рік тому

      Which chapter in 62-11-00? Give me a paragraph too on what you’re talking about?

  • @kennethrudo8282
    @kennethrudo8282 Рік тому +1

    FCP on a 145. Do you have any videos on tail rotor balance? Just looking to get a better understanding of the solutions provided on the mircovibe to get this tail in balance.

    • @HelicopterMaintenance
      @HelicopterMaintenance  Рік тому +1

      I don’t have anything on a tail rotor balance at this time. When you say FCP what do you mean? Do you mean Fenestrom? Like on the newer 145’s? Let me know and I’ll see what I can do. But it might be a while. I know when I get jammed up I usually talk to Mike Matler for the EC135s tech support. Those guys in Grand Prairie are squared away.

    • @kennethrudo8282
      @kennethrudo8282 Рік тому +1

      @@HelicopterMaintenance Functional Check Pilot.

    • @HelicopterMaintenance
      @HelicopterMaintenance  Рік тому

      Hey, sorry it’s been a minute, I still haven’t been involved in a tail rotor balance where I could collect the data and pictures like I wanted to to make a decent video. But I’ll get there eventually. It’s on my list.

    • @HugoManuel521
      @HugoManuel521 Рік тому +1

      Your videos are great! Just suscribed and will be in the look out for tail rotor balance video!

    • @HelicopterMaintenance
      @HelicopterMaintenance  Рік тому

      @HugoManuel521 thanks! I will hopefully have the TR balance video up in the next 3-4 weeks.

  • @biggyboyy1
    @biggyboyy1 Рік тому +1

    Is it possible to get some copies of your charts??

    • @HelicopterMaintenance
      @HelicopterMaintenance  Рік тому

      If you go to the description of the video I linked to the blank charts on my shared Google drive. I’m a mechanic so I may have not linked the docs correctly, I lack in IT skills. Check it out and let me know if the 2 files in the bottom of the description section are what you need or if there something else I can help find.

  • @BobbyGeneric145
    @BobbyGeneric145 Місяць тому +1

    Dude... Your left hand rule on that link... That also applies to high and low air pressure systems to determine direction of the rotation of the system!!!
    Or it might be a right hand rule... Meteorology class was 15 years ago.

  • @mostefatayebcherif6798
    @mostefatayebcherif6798 9 місяців тому +1

    Hello sir , really very important presentation, useful, I'm maintenance hélicoptère AS355N 03 blades.

  • @jonkinter8822
    @jonkinter8822 Рік тому

    Do you have issues with water in the blades.

    • @HelicopterMaintenance
      @HelicopterMaintenance  Рік тому

      I have seen that in the past a few times. The aircraft that is located at my primary location stays in the hanger unless it’s on a flight, so the blades don’t get beat up by the sun and the weather. The blades that I’ve seen that had water, spent their lives outside in the weather.

    • @jonkinter8822
      @jonkinter8822 Рік тому

      We swap water soaked blades continuously

    • @HelicopterMaintenance
      @HelicopterMaintenance  Рік тому

      Oh man that sucks. How old are the blades? How old are the helicopters?

    • @jonkinter8822
      @jonkinter8822 Рік тому

      @@HelicopterMaintenance not sure i would have to check the hard cards.

    • @paulcantrell01451
      @paulcantrell01451 7 місяців тому +1

      I've been told that was a huge issue ( maybe still is for Kaman? ) with wooden blades. Balanced one day, wicked out of balance the next because the humidity changed. Personally I'm more scared by the thought of what the insects might be up to... 😮

  • @mercurybullet6043
    @mercurybullet6043 Рік тому

    We had a blade change on an as355 and the track and balance was awful. Helicopter was never the same afterwards. This is a black art.

    • @HelicopterMaintenance
      @HelicopterMaintenance  Рік тому

      Yes sir. If the blades have completely different amount time, it becomes very difficult to track and balance. Good luck. Sometimes 1 blade just will not fly with the others.

    • @paulcantrell01451
      @paulcantrell01451 7 місяців тому +1

      ⁠@@HelicopterMaintenance Pilot here, was going to say the same thing. We had a Bell with different time blades. The older one was soft, so it would cone more... They'd be perfect in the hover, but then in forward flight the soft one would start climbing higher and higher. When we finally timed out those blades, the new ones were easy to dial right in. Made a huge difference.

    • @HelicopterMaintenance
      @HelicopterMaintenance  7 місяців тому

      @paulcantrell01451 it’s some crazy magic. Usually if the blades aren’t way out of balance you can usually get them in to a respectable vibration level with hover track then tabs for high speed. But to be honest, sometimes if difficult. Sometimes I think I really know what I’m doing, then I get humbled quickly by a machine that wants to prove a point.

  • @BobbyGeneric145
    @BobbyGeneric145 Місяць тому +1

    Ill stick to my a321neo!

  • @TheBeingReal
    @TheBeingReal 10 місяців тому +1

    Are you a pilot too?

    • @HelicopterMaintenance
      @HelicopterMaintenance  10 місяців тому

      No sir. I have maybe a hand full of hours behind the controls of a helicopter. That was a dream of mine when I was much younger, but not any more. I really enjoy where I am now. 7 on, 7 off, with one ec135 to take care of. The machine at my base is in really good shape. I think the main reason for that is the fact that she gets to stay in a hangar unless she’s flying. Leaving these machines outside for years in all kinds of weather just wears them down. Thanks for watching, I hope you enjoy my content. Regards, Help Desk

    • @HelicopterMaintenance
      @HelicopterMaintenance  10 місяців тому

      No sir. I have maybe a hand full of hours behind the controls of a helicopter. That was a dream of mine when I was much younger, but not any more. I really enjoy where I am now. 7 on, 7 off, with one ec135 to take care of. The machine at my base is in really good shape. I think the main reason for that is the fact that she gets to stay in a hangar unless she’s flying. Leaving these machines outside for years in all kinds of weather just wears them down. Thanks for watching, I hope you enjoy my content. Regards, Help Desk

  • @kbuss10
    @kbuss10 11 місяців тому +1

    Wow helicopters are not complicated at all 🤣😲😲

    • @HelicopterMaintenance
      @HelicopterMaintenance  11 місяців тому +1

      Ha! I know right?!

    • @kbuss10
      @kbuss10 11 місяців тому

      @@HelicopterMaintenance I am an engineer and I understand that this is an iterative process so every time you change something the other three blades change also so you need some gut feel and the mucho experience to work this properly but I never thought that is such an sensitive process. also I looked up this instrument so you had an accessory like a camera or something which laser scans the blades? you just sit on the passenger side aim on the rotors and can give you this precise information?

    • @HelicopterMaintenance
      @HelicopterMaintenance  11 місяців тому +1

      Yes sir. It’s either an infrared camera or a laser or pure magic. It comes with the microvibe kit. Then the box will show what the track is. I have used a strobe with the reflectors mounted on the blade tips. The theory is the same. If I remember correctly, the reflective circle on the reflectors is 10mm. So you can kind of figure it out while you’re watching the strobe. I just make sure to take the time and write down everything. There is probably a faster way but I have been successful this way. I hope this helps.

  • @tanthiennguyen9308
    @tanthiennguyen9308 Рік тому +1

    Meine Brüders kommen nach Hause mit schmutzigen Händen gehabt haben bitteschön................!