King Air Propeller Demonstration

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  • เผยแพร่เมื่อ 2 ก.พ. 2025

ความคิดเห็น • 262

  • @Posttrip
    @Posttrip 3 ปีที่แล้ว +147

    The King Air is just a gorgeous turboprop inside and out. But, really love the cockpit.

    • @davecrupel2817
      @davecrupel2817 3 ปีที่แล้ว +3

      It's also a ferocious sounding plane.
      That prop tone you hear at 2:10 is often the loudest sound at the airport if it isn't a military base.
      I call King Airs the Dodge Hellcats of General Aviation. Because they sound mean as can be, they sound powerful, and they are a joy to listen to. (Even a bit humbling when you're right up next to one while its running)
      Even if you need hearing protection within 700 feet of them 😅

    • @HekateMGO
      @HekateMGO 3 ปีที่แล้ว +2

      As someone that’s worked on these things & hates them with a burning passion I just wanna say that I appreciate people like you who love them. They do look good though. 😂

    • @goofygolfer56
      @goofygolfer56 3 ปีที่แล้ว

      Yeah, it’s gorgeous, but the inboard tanks between the engines and fuselage are a pain in the a$$ to get to and fuel!!!

    • @Posttrip
      @Posttrip 3 ปีที่แล้ว

      @@goofygolfer56. Not ‘signal point?’

    • @goofygolfer56
      @goofygolfer56 3 ปีที่แล้ว

      @@Posttrip Nope. One, two or three tanks per wing with the mains being between the engines and fuselage

  • @snyper7979
    @snyper7979 3 ปีที่แล้ว +124

    Either thats a brand new aircraft, or someone has been taking very very good care of the control panels. Not a scratch on them, they all look brand spanking new

    • @Mode_Sierra
      @Mode_Sierra  3 ปีที่แล้ว +66

      Thank you! Aircraft about 7 years old and just over 1,000 hours!

    • @slashz0r
      @slashz0r 3 ปีที่แล้ว +11

      @@Mode_Sierra it's very obvious you give this craft the attention/care it deserves

    • @Mode_Sierra
      @Mode_Sierra  3 ปีที่แล้ว +19

      @@slashz0r Credit goes to the engineer/mechanic. I look after it in the sky.

  • @NorthwestAeronaut
    @NorthwestAeronaut 2 ปีที่แล้ว +1

    This was great to see behind the curtain a bit. Thank you 👍

  • @USAMontanan
    @USAMontanan ปีที่แล้ว +1

    I was watching and just thinking about how much I love the sound of turbines when you said it for me!

  • @davidmcc359
    @davidmcc359 3 ปีที่แล้ว +96

    Brilliant video, simple to understand, amazing to see the feathering mechanics at work and whilst for many this might seem banal, I found it fascinating.. Well done lad for a super piece of footage and delivery.

    • @sigistrele5835
      @sigistrele5835 3 ปีที่แล้ว +1

      I agree! And I love Beaker!! Greetings from Austria

    • @Mode_Sierra
      @Mode_Sierra  3 ปีที่แล้ว +1

      You’re very welcome!

  • @NIKONGUY1960
    @NIKONGUY1960 3 ปีที่แล้ว +3

    I don't fly so this means nothing to me but it came up in my feed so YT felt I needed to see this. Was not disappointed. My inner geek has been satisfied.

    • @Mode_Sierra
      @Mode_Sierra  3 ปีที่แล้ว

      Hahaha. Glad I could help and find mutual geekinessz

  • @larryfinke6133
    @larryfinke6133 3 ปีที่แล้ว +10

    Good illustration of how many systems and controls come into play just to start the engines. Thank you!

  • @SailingFrolic
    @SailingFrolic 3 ปีที่แล้ว +1

    This guy is a legend. He says Governor like a proper champ, and he sets the prop rpms to 420 in the video and doesn't even make a joke about it, but pauses a bit when saying it and hurries over it.

    • @Mode_Sierra
      @Mode_Sierra  3 ปีที่แล้ว

      That’s such a smart observation! Love it.

  • @72Bluemax
    @72Bluemax 3 ปีที่แล้ว +8

    You are right, not something you get to see very often. I like that you went through the start up. Good video. Thanks for sharing.

    • @eugeneoreilly9356
      @eugeneoreilly9356 ปีที่แล้ว +1

      The Blue Max,great film.

    • @72Bluemax
      @72Bluemax ปีที่แล้ว

      @@eugeneoreilly9356 nice you are the only one to make that connection. My grandfather was a Lt. Col. In the A Force and that was his call sign.

  • @greatflyer_aviation
    @greatflyer_aviation 3 ปีที่แล้ว +79

    Very interesting, thanks!

  • @wallaceshackleton1889
    @wallaceshackleton1889 3 ปีที่แล้ว +10

    Thanks, believe it or not I've always wondered what the change in engine noise was on start-up. Now I know it's the revs changing as the governor takes over.

  • @noblegoldheart8508
    @noblegoldheart8508 2 ปีที่แล้ว +1

    0:55 I love that sound when a king air starts! I've gotten to work on some king airs in the hangar I work at, while they're a little difficult as far as their engineering goes, they are a joy to look at, and a joy to be around. King Air is easily one of the best planes ever built.

  • @Rwalt61
    @Rwalt61 3 ปีที่แล้ว +2

    This is one of the best videos that explains and shows how the props change pitch and I too love that turbine sound. The KingAir is a beautiful aircraft.

  • @TRPGpilot
    @TRPGpilot 3 ปีที่แล้ว +3

    Very nice and very nerdy. Thanks for uploading and catering for those of us who like to see what goes on under the cowls, covers and access panels.

  • @tazb3255
    @tazb3255 3 ปีที่แล้ว +6

    Reading about this in theory makes me scratch my head wondering what the heck are they talking about. Thanks to your video I can finally visualize it properly.

  • @LowVoltage_FPV
    @LowVoltage_FPV 3 ปีที่แล้ว +7

    I remember on the 99's every winter rigging the reverse torque and every spring rigging them back. This was in northern Ontario where winter daytime temperatures could be below -30c.

    • @Mode_Sierra
      @Mode_Sierra  3 ปีที่แล้ว +1

      I just know you have interesting stories as soon as you mention 99’s and Ontario Winters.

    • @LowVoltage_FPV
      @LowVoltage_FPV 3 ปีที่แล้ว +3

      @@Mode_Sierra I worked for Bearskin from 86 to 88. Seen plenty of 99's operating in some harsh conditions.

  • @mikecooper8462
    @mikecooper8462 3 ปีที่แล้ว +1

    Used to love cranking up the APU on the C-141B. Sweet music to the ears.

  • @WolfPilot
    @WolfPilot 3 ปีที่แล้ว +12

    I love this video! What a concise explanation of how the prop control works!

  • @n1msu
    @n1msu 3 ปีที่แล้ว +1

    Thanks for taking the time to show this Johan and explain what the mechanisms are doing too.

  • @kuri369kuri
    @kuri369kuri 3 ปีที่แล้ว +1

    I worked on 350’s and next will be 1900’s. In my opinion, beautiful aircraft.

  • @zhuzzir
    @zhuzzir 3 ปีที่แล้ว +1

    Although I knew almost nothing about aircraft, this vid is very interesting for me (and others alike)... Thanks for the rare demo. Be safe 🌹

  • @BJ-Hawk
    @BJ-Hawk 3 ปีที่แล้ว +16

    I love the start sound ❤

  • @FoxHotelLima
    @FoxHotelLima 3 ปีที่แล้ว +2

    Thanks for that demonstration. Its good to see it in real life. Keep'em coming, love the King Airs

  • @danmanthe9335
    @danmanthe9335 3 ปีที่แล้ว +18

    Makes me wish that I could have gone to pilot school. That was beautiful

    • @Mode_Sierra
      @Mode_Sierra  3 ปีที่แล้ว +2

      Do it!

    • @danmanthe9335
      @danmanthe9335 3 ปีที่แล้ว +1

      I don't know what company would want to hire a pilot as old as I am. At least from the research I've done

    • @wowwowwiiwowiwwiwiwiwiwiwi8294
      @wowwowwiiwowiwwiwiwiwiwiwi8294 3 ปีที่แล้ว

      How old are you sir?

    • @danmanthe9335
      @danmanthe9335 3 ปีที่แล้ว

      @@wowwowwiiwowiwwiwiwiwiwiwi8294 38

    • @OscarScheepstra_Artemis_
      @OscarScheepstra_Artemis_ 3 ปีที่แล้ว

      You can always fly for a drug cartel in the middle of a jungle. :D

  • @fricky172
    @fricky172 5 ปีที่แล้ว +13

    Nice simple demo and explainations, thank you!

    • @Mode_Sierra
      @Mode_Sierra  5 ปีที่แล้ว +4

      No problem... sometimes simpler is better hey :)

  • @realamerican1555
    @realamerican1555 2 ปีที่แล้ว

    That was incredible. Very few vids that have an actual person with actual knowledge. Would love to see the inside mechanical part of pitch

  • @tombmaster972
    @tombmaster972 3 ปีที่แล้ว +1

    fascinating demonstration! your camera even enables to see the propeller pitch movements!

  • @mountainmikeoutdoors
    @mountainmikeoutdoors 3 ปีที่แล้ว +1

    King Airs are so sweet. Thanks for the demo, it's fantastic.

  • @richardsonreis6972
    @richardsonreis6972 3 ปีที่แล้ว +1

    Very Nice video! Completely clear, direct and didatic. Great!
    Hello from São Luís Maranhão Brazil!

  • @lightespeed
    @lightespeed 3 ปีที่แล้ว +4

    That was very informative and concise, now I'm sure I can fly it! I'm interested in the mechanical linkage that alters the pitch of the propellers.

    • @Mode_Sierra
      @Mode_Sierra  3 ปีที่แล้ว +1

      Hi, if you research “propeller governors” you’ll see how the governor works to maintain propeller RPM using engine oil.

  • @tuomassyrjaniemi
    @tuomassyrjaniemi 3 ปีที่แล้ว +2

    Interesting! I used to fly my multiengine schoolflights at c90. Nice plane and plenty of power. You have even glass cocpit! We had steam gauges all over 😄

  • @nsm1091
    @nsm1091 3 ปีที่แล้ว +1

    Great video .. never saw propeller pitch change function in action before .. good one

  • @279seb
    @279seb 3 ปีที่แล้ว +1

    Really interesting video. Thanks for taking us thru each step and explaining the reasoning for each.

  • @sturvinmurvin9408
    @sturvinmurvin9408 5 ปีที่แล้ว +6

    Great demonstration! Thanks!

    • @Mode_Sierra
      @Mode_Sierra  5 ปีที่แล้ว +1

      I’ll do some more some time

  • @realvanman1
    @realvanman1 3 ปีที่แล้ว +1

    Fascinating! It is interesting how those boost pumps would run, even before the battery master switch was switched on.

    • @Mode_Sierra
      @Mode_Sierra  3 ปีที่แล้ว +2

      Yes, they are on the “hot bus” and one of the C90 “gotcha’s” to look out for. Could drain the battery regardless of battery switch position.

  • @ryburnsjr
    @ryburnsjr 3 ปีที่แล้ว +1

    Thanks you answered several questions I had

  • @poly_hexamethyl
    @poly_hexamethyl 3 ปีที่แล้ว +1

    0:44 Is that elbow pipe the intake or the exhaust of the turbine? The metal looks discoloured from heat, so maybe the exhaust? But that would mean the engines are put on backwards, no?

    • @Mode_Sierra
      @Mode_Sierra  3 ปีที่แล้ว +1

      It is the exhaust. And you are right, the PT6 engine is a reverse flow turbine engine. See my anti ice demo video for more explanation :)

  • @lucasmrduarte
    @lucasmrduarte 4 ปีที่แล้ว +8

    Thank you for this video!

  • @cavok76
    @cavok76 3 ปีที่แล้ว +3

    A very good, educational video.

  • @PaulGarthAviation
    @PaulGarthAviation 3 ปีที่แล้ว +8

    That was really interesting to watch without engine cover.
    One question, which may appear really minimal, but when you toggle some switches you use a thumb and forefinger movement as if "pulling" the switch. Is this a mechanism in the switch requiring to pull it out, or is just best practice so you know you've completed it?

    • @Mode_Sierra
      @Mode_Sierra  3 ปีที่แล้ว +5

      That’s a good observation. Yes, your assumption is correct. Some switches on the panel are of the type that requires you to pull the switch before moving it. This is to avoid unintentional or accidental switching.

    • @Airplane_Willy
      @Airplane_Willy 3 ปีที่แล้ว +4

      I agree with Johan, that was a really good observation. I tried to find a diagram of one, but couldn't. Essentially some of the King Air switches have a tooth that you have to pull the spring-loaded sleeve on the switch back over the tooth to shut it off. That is so they aren't inadvertently turned off in flight. If I find a diagram I'll come back and post it.

    • @PhilbyFavourites
      @PhilbyFavourites 3 ปีที่แล้ว +1

      @@Mode_Sierra I noticed that too. I thought with that panel down by your left hand side you could wreak havoc with just the brush of an arm.
      Now I know why you don’t. Thanks very much 👍🏻👍🏻

  • @paulhatfield498
    @paulhatfield498 2 ปีที่แล้ว +1

    Does running in the feathered position make the power turbines run hotter ? Going from fine to featherd lost you something like 65% prop RPM. Are there any drawbacks to that kind of speed loss ?
    Great video by the way!!

    • @Mode_Sierra
      @Mode_Sierra  2 ปีที่แล้ว

      In my experience the turbines might run slightly hotter but totally negligible. To me, the benefits of starting with the props feathered outweigh the disadvantages. Things like: Quieter, friendlier to ramp personnel, if there is snow/ice etc… inadvertent taxying if the parking brake loses pressure etc.

    • @paulhatfield498
      @paulhatfield498 2 ปีที่แล้ว +1

      @@Mode_Sierra hey mate.
      Super interesting. Not a pilot but fascinated by these machines. I do volunteer ambulance work in a remote community in Western Australia. We transfer patients to the local airport and its most often a PC12 that picks them up. Spool up time is so fast on these things. I fly RC jets and our miniature turbines take longer to start than a pt6.

  • @Juppie902
    @Juppie902 3 ปีที่แล้ว +16

    Fine: pushes air, lets you fly
    Coarse: almost no air resistance, lets you glide

    • @0RespectMyAuthority0
      @0RespectMyAuthority0 3 ปีที่แล้ว +1

      The way I used to remember it is Coarse sounds like Cut, props turn into little knives in the air.

    • @matthiaspatzelt3085
      @matthiaspatzelt3085 3 ปีที่แล้ว +5

      Fine: pushes little air per revolution, results in higher RPM and less torque, keeping power reserves for go-around etc.
      Coarse: pushes more air per revolution, lower RPM, higher torque. Too much torque will damage the engine.
      Feather: pushes little to no air, reduces drag and allows for better glide performance in case of engine failure

    • @zhuzzir
      @zhuzzir 3 ปีที่แล้ว

      @@matthiaspatzelt3085 thanks, sure its nothing for those who knows but means a lot for those who know nothing like me... 😅👍

    • @Juppie902
      @Juppie902 3 ปีที่แล้ว

      @@matthiaspatzelt3085 wait, i thought coarse is feather in props ?!
      because the angle of blades in feathering and in coarse results in little to no RPM

  • @dieselyeti
    @dieselyeti 3 ปีที่แล้ว +4

    Great video. Why do you wait until N1 is below 10% to shut off the boost pumps?

    • @Mode_Sierra
      @Mode_Sierra  3 ปีที่แล้ว +9

      Hi there, the purpose of the electric boost bumps is to prevent cavitation of the engine driven fuel pumps. Cavitation (destructive) happens when there is back pressure in the fuel flow and “bubbles” that vaporise form in the fuel pump. Cavitation can destroy your engine driven fuel pump over time. And no engine driven fuel pump means “bye bye engine”. The electric boost pump operates at a much lower pressure than the engine driven fuel pump and can’t support the required fuel pressure for the engine. It only serves to protect the engine driven pumps from cavitation damage. Above 10% The electric boost pumps still do their “job” of preventing cavitation. Once below 10% the risk of cavitation ceases and the boost pumps can be turned off. Hope that explains it ok.

    • @Mode_Sierra
      @Mode_Sierra  3 ปีที่แล้ว

      @@DylanClements98 Always learning! Are you related to Tom Clements?

  • @wernerschulte6245
    @wernerschulte6245 ปีที่แล้ว +1

    Very interesting indeed ! Thanks for this demonstration. I am not used to turboprops, flying only small piston engines. What about the fuel consumption during feathering ? Does it increase because of the higher resistance of the prop ?

    • @Mode_Sierra
      @Mode_Sierra  ปีที่แล้ว

      It’s neglible. Remember that the engine is never working any harder throughout the process. The “Power Levers” are never touched during the demonstration… it’s idle power throughout.

  • @maheralazzawi7814
    @maheralazzawi7814 3 ปีที่แล้ว +1

    good job

  • @leokimvideo
    @leokimvideo ปีที่แล้ว

    I saw flames, im happy

  • @qthemerrybandofanons4481
    @qthemerrybandofanons4481 3 ปีที่แล้ว +6

    God that is such a beautiful airplane.

    • @bliglum
      @bliglum 3 ปีที่แล้ว

      Agreed, King Air is easily one of the most handsome twin prop planes ever built.

  • @TheOneTrueSpLiT
    @TheOneTrueSpLiT ปีที่แล้ว +1

    Wouldn't it be fascinating to be able to see through the whole of the engine as if it were glass and be able to observe all of the internal workings. CGI animations can provide this but they're not the "real deal", maybe in the future a material will be designed that would allow this.

  • @Whirlynerds
    @Whirlynerds 3 ปีที่แล้ว +1

    Best video I've seen to date!

    • @Mode_Sierra
      @Mode_Sierra  3 ปีที่แล้ว +1

      True praise! I got into helicopters too in the last few years! From your profile pic, you could teach me a thing or two!

    • @Whirlynerds
      @Whirlynerds 3 ปีที่แล้ว +1

      @@Mode_Sierra I'm a true fan! loved helis since age 3. This is the first video I've found that answers all my questions in full, i'll be sure to check out your others ;)

    • @Mode_Sierra
      @Mode_Sierra  3 ปีที่แล้ว +1

      @@Whirlynerds I’ve been reluctant to post more, but the response has been encouraging.

  • @sioul2006
    @sioul2006 3 ปีที่แล้ว +1

    Hey, what do you use what prop setting for? Heard it’s like shifting gears(?) do you use the low angle of attack of the prop-blades for acceleration then and the high angle of attack once you’re in a faster cruise flight, like an overdrive gear? I’d love to hear from you, since I’ve never operated any plane that used an adjustable prop! 😄

    • @lancelotvt
      @lancelotvt 3 ปีที่แล้ว +1

      Fine pitch on the blades to achieve a higher RPM to increase climb performance at lower altitudes where the air is more dense. Once the aircraft is level at altitude feathering the props allows the blades to more effectively "bite" in to the less dense air increasing engine efficiency.

    • @Mode_Sierra
      @Mode_Sierra  3 ปีที่แล้ว +1

      In essence, regarding prop lever settings, the only pilot action during a “normal” flight in this type of aircraft is as follows:
      -Props full forward (fine pitch) for taxi and Take Off. See Note 1 below.
      -Adjust the props to “Maximum Continuous RPM, or Climb RPM shortly after take off. See Note 2 below.
      -Reduce Prop RPM for the cruise. See Note 3 Below
      -During the approach phase adjust your props back full forward for the landing (reverse thrust) or for the anticipated “go around”. See Note 4 Below.
      That’s it. The rest of the time, the governor works to achieve the RPM that the pilot has “asked for”/selected. So when there is excess power, it simply reduces the pitch of the blades to take a bigger “bite” of the air.
      Notes.
      Note 1: The props won’t achieve the High RPM you require, until you apply sufficient power using the power (thrust) levers to turn them fast enough. Once you have enough (and excessive) power, the governor will continuously adjust the propeller pitch to maintain the RPM you requested.
      Note 2: In the C90GTX, the difference between Maximum RPM (time limited) and Maximum Continuous RPM is very small. Just a fine tickle back of the prop levers. If the props are rigged correctly, this is a change of 1,926 RPM to 1,900 RPM. In other King Air models, the difference between Max RPM and Max Continuous is more of an adjustment. (300-400 RPM in the in the models I’ve flown)
      Note 3: Refer to the Cruise Tables in your Pilot Operating Handbook. In this particular model, you can leave the props at 1,900. We do however tend to adjust them to 1,800 for longer cruises, because it changes the “tone” of the props to a more comfortable one for passenger comfort.
      Note 4: Pilot technique differs here, based on the types of props you have fitted, runway available and passenger comfort. In the C90GTX, I always adjust the Props to full forward in the final approach phases of a flight. That way, the “Reverse Thrust” is ready on the ground and I simply have to put the power levers in reverse. Same with a go-around... it leaves me less things to do.
      In the B200 or other models of the 90 that I’ve flown, you could be adjusting the props from 1,600 to 2,200 RPM ready for the reverse or go around. This can have quite a noise increase for passengers. So, many pilot choose to leave the props where they are until after touchdown, when they will then whack prop levers full forward before applying reverse thrust. This of course, is runway length and other conditions permitting.
      I know this is a long reply, so I’m going to add it to the description of the video. Hope it helps.

    • @sioul2006
      @sioul2006 3 ปีที่แล้ว +1

      @@Mode_Sierra Man, this helped for sure! I really appreciate your effort to response so detailed!
      I’m not very experienced yet, mostly flew sailplanes and once in a while single engine piston‘s with non-adjustable props.
      There’s always something new to learn every day. It seems a little complex, looking for the prop setting as well, but I’m pretty sure once you get used to it it won’t be a problem at all.
      Thanks again for the long reply, I really enjoyed reading this and it helped me a lot! :)

    • @sioul2006
      @sioul2006 3 ปีที่แล้ว

      @@lancelotvt Thank you very much this helped me get a general understanding very much! :)

  • @kutyafal
    @kutyafal 2 หลายเดือนก่อน +1

    Hello, fantastic to see this! The red band position below the propeller lever feather position, what is it for? Is that also feather?

    • @Mode_Sierra
      @Mode_Sierra  2 หลายเดือนก่อน

      @@kutyafal it is the feather “range” so as soon as you get into that soon the props will feather as opposed to simply being “coarse”

  • @DrumCoversbyBill
    @DrumCoversbyBill 3 ปีที่แล้ว +1

    Very cool. Thanks for sharing.

  • @gregfaris6959
    @gregfaris6959 3 ปีที่แล้ว +1

    ProLine 21. - 135 power plant. Ideal configuration for the KingAir 90.

    • @Mode_Sierra
      @Mode_Sierra  3 ปีที่แล้ว

      Can’t knock it! It crazy to think that Pro Line 21 is already considered “old”... with the Pro Line Fusion replacing it.

    • @gregfaris6959
      @gregfaris6959 3 ปีที่แล้ว +1

      @@Mode_Sierra Thanks Johan - I agree. Fusion is much more modern from a design perspective, but from a pilot's perspective (and the KingAir is the ultimate "pilot's flight deck") ProLine 21 is atleast its equal, and in my opinion easier to use.

    • @rumbecker5085
      @rumbecker5085 3 ปีที่แล้ว

      I flew a BE20 with no FD, it literally had an old 172 style AI

  • @NoBody-ht1oh
    @NoBody-ht1oh 3 ปีที่แล้ว +2

    Always wondered if that dramatic drop in power turbine rpm creates a huge force in the reduction gearbox when feathering like that.

    • @Mode_Sierra
      @Mode_Sierra  3 ปีที่แล้ว

      It’s the sound that makes it worse than it is. In essence it’s only a 700RPM drop. And the drop happens slower than the sound suggests.

    • @NoBody-ht1oh
      @NoBody-ht1oh 3 ปีที่แล้ว

      @@Mode_Sierra not in the turbine it’s not. Turbine spins much faster than the prop. It’s a 15:1 reduction so that’s 15000rpm down to 6000. Lots of intertia involved

    • @calvinnickel9995
      @calvinnickel9995 3 ปีที่แล้ว +1

      You can see the force on the torque meter. It’s basically just measuring oil pressure as compressed by piston connected to one of the ring gears in the RGB.
      Feather it at close to max torque. Yeah, you’re going to overtorque it and damage the RGB and other things. Feather it at idle? Hardly noticeable.

  • @charlypomos
    @charlypomos 3 ปีที่แล้ว +1

    Very interesting demonstration, Thanks

  • @marwan75
    @marwan75 3 ปีที่แล้ว

    Thanks captain for the excellent demonstration 👌

  • @nicmost3044
    @nicmost3044 3 ปีที่แล้ว +1

    Nevertheless a good explanation of quite difficult terms in gas turbine engines I don't understand.

  • @NarberAviation
    @NarberAviation 3 ปีที่แล้ว +1

    Great demonstration!

  • @donizetesilva1088
    @donizetesilva1088 3 ปีที่แล้ว +1

    Boa Noite meu amigo Donizete Bragança Paulista SP. Brasil

  • @waynep343
    @waynep343 3 ปีที่แล้ว

    Does the red morse cable on the port engine shown.. have too much kink behind the casing mount.. causing a cable core fray to failure point.. ???????? it might be interesting to cut the ends off a used cable and extract the cable core to check for hard spots from excessive flexing. then unwind the core strand by strand. in that area..

  • @loluspololus
    @loluspololus 3 ปีที่แล้ว +1

    Great video ,thank you !

  • @UKAviationMovies
    @UKAviationMovies 3 ปีที่แล้ว +2

    Cool vid 😎👌👍

  • @topofthegreen
    @topofthegreen 3 ปีที่แล้ว +1

    What an awesome video,thanks!

  • @SovereignC680
    @SovereignC680 4 ปีที่แล้ว +7

    perfect, thanks for this lesson :-)

  • @ActionHeinz
    @ActionHeinz 3 ปีที่แล้ว +1

    Cool! But the master switch looks as if it could be easily knocked down by accident or is there any safety lock? I guess it's not a pleasure to accidently hit that flap when you are in mid air 😅

    • @Mode_Sierra
      @Mode_Sierra  3 ปีที่แล้ว +1

      Hi there, it’s not a problem. It actually requires a bit of force to push it down. I’ve never heard of a case where it was accidentally done. :)

    • @ActionHeinz
      @ActionHeinz 3 ปีที่แล้ว

      @@Mode_Sierra Thanks for the answer 👍

  • @paulbickley01
    @paulbickley01 3 ปีที่แล้ว +3

    I am curious how do you prevent a hot start?

    • @Mode_Sierra
      @Mode_Sierra  3 ปีที่แล้ว +3

      In my learning thus far (and thankfully not experience)... it is becoming clear that the main cause of a “hot start” is a weak battery.
      So the most fundamental way of avoiding a hot start is:
      1. Ensure your battery is in good condition and sufficiently charged.
      2. Turn off all electrics that could be draining the battery. In my experience the main drains of battery power that can be left on unintentionally is the “Cabin Temp Mode” switch, and window heat switches.
      So in a nutshell, check that your battery is charged, and make sure you’re giving it the best chance to turn the turbine when starting the engine.
      I also keep a keen eye on my “fuel flow” gauge once I have advanced the fuel condition levers. An abnormal (higher than normal) fuel flow could be your first indication of a potential hot start, even before ITT starts rising fast.

    • @aerofreak2053
      @aerofreak2053 3 ปีที่แล้ว +2

      Additionally, when possible face the plane into the wind and consider delaying the introduction of fuel until a few seconds after rpm and temperature criteria for fuel introduction have been met. Consider even waiting long enough for the RPM to top out on the starter before light-off.

    • @Mode_Sierra
      @Mode_Sierra  3 ปีที่แล้ว +1

      @@aerofreak2053 Yes. Especially when doing a quick turnaround. Many pilots rush after the “minimum RPM”. When doing a quick turnaround intend to run the starter an extra 10 seconds or so and watch the ITT drop before introducing fuel.

  • @timothykruger7579
    @timothykruger7579 3 ปีที่แล้ว +1

    Great video! Which airport is this at?

  • @razormaku8045
    @razormaku8045 3 ปีที่แล้ว +1

    Cool. Thanks

  • @wingnutzster
    @wingnutzster 3 ปีที่แล้ว +1

    Nice one Johan

  • @이웃집개리치
    @이웃집개리치 3 ปีที่แล้ว +1

    Thank you so much!

  • @JoshOnGuitar
    @JoshOnGuitar 4 ปีที่แล้ว +2

    Awesome video!! Thanks for this!

  • @mimsnshine
    @mimsnshine 3 ปีที่แล้ว +1

    Sweet music

  • @AMoose454
    @AMoose454 3 ปีที่แล้ว

    Beautiful aircraft

  • @adolforuiz3723
    @adolforuiz3723 3 ปีที่แล้ว +1

    Gracias🇲🇽

  • @scramblediazluque1703
    @scramblediazluque1703 3 ปีที่แล้ว +1

    Marvelous 😍

  • @curtisjmwc
    @curtisjmwc 3 ปีที่แล้ว +1

    What a treat thank you!

  • @keukenrol
    @keukenrol 3 ปีที่แล้ว +1

    Lovely demo!

  • @shawnkimbrel5320
    @shawnkimbrel5320 3 ปีที่แล้ว

    You can either buy it part by or buy plane and a business jet have 2 different motor for flight

  • @grafhilgenhurst9717
    @grafhilgenhurst9717 3 ปีที่แล้ว +1

    Great demonstration! How many gallons of fuel did that manage to burn in 3:46?

    • @Mode_Sierra
      @Mode_Sierra  3 ปีที่แล้ว

      3 Gallons :)
      270lbs per hour at idle

  • @ol_smokey9370
    @ol_smokey9370 3 ปีที่แล้ว +1

    Way fancier than the B200 I maintain. It's missing all the steam gages and the overhead switch panel!

  • @joevignolor4u949
    @joevignolor4u949 3 ปีที่แล้ว

    I found it interesting that as you varied the prop pitch the RPM changed. I'm familiar with the turboprop engines used on the C-130 Hercules. On those engines the RPM's are tightly governed to a very narrow speed range of about + or - 1.5%. When the pilot increases the prop pitch the torque and fuel flow increase drastically but the RPM's stay constant. I thought all turboprop engines worked like that.

    • @insylem
      @insylem 3 ปีที่แล้ว +1

      The C130 uses a fixed turbine. All the engine and prop are geared and run together. This video shows a PT6, its a free turbine. The compressor is mechanically independant of the power, and its driven by exhaust gases from the compressor. Ive seen people hold the propeller still while running the engine to check for leaks.

  • @jetbrz2721
    @jetbrz2721 3 ปีที่แล้ว +1

    Thanks For this vid !

  • @alferfoot1861
    @alferfoot1861 3 ปีที่แล้ว +1

    Wow...that is awesome ...

  • @maris22435
    @maris22435 3 ปีที่แล้ว +1

    Great video instruction!

  • @toastrecon
    @toastrecon 3 ปีที่แล้ว +1

    Beautiful.

  • @zhuzzir
    @zhuzzir 3 ปีที่แล้ว

    Quick question, do ones require somekind of key or card to start an aircraft (ie like starting a car engine) before all those starting seq? 🙏

  • @mrschellfisch
    @mrschellfisch 3 ปีที่แล้ว +2

    Thank you for showing the prop mechanism, never actually saw it in action during eight years of aviation! Gotta love pilots thinking of the community while doing those kind of tests :-)
    Got a question for you: Why do the boost pumps need to be on during shutdown or a least until N1 being below 10 percent? The condition levers are already in the cutoff position, why worry about boost pumps and N1?

    • @Mode_Sierra
      @Mode_Sierra  3 ปีที่แล้ว +3

      You are welcome! Glad you liked it. Someone else asked the same question, so I’ve copied the answer. Let me know if it explains it ok.
      The purpose of the electric boost bumps is to prevent cavitation of the engine driven fuel pumps. Cavitation (destructive) happens when there is back pressure in the fuel flow and “bubbles” that vaporise form in the fuel pump. Cavitation can destroy your engine driven fuel pump over time. And no engine driven fuel pump means “bye bye engine”. The electric boost pump operates at a much lower pressure than the engine driven fuel pump and can’t support the required fuel pressure for the engine. It only serves to protect the engine driven pumps from cavitation damage. Above 10% The electric boost pumps still do their “job” of preventing cavitation. Once below 10% the risk of cavitation ceases and the boost pumps can be turned off. Hope that explains it ok.

  • @Hoosirdaddy
    @Hoosirdaddy ปีที่แล้ว

    i allways know the sound these props make when takeing off i live 10 miles from alb int i can hear them takeing off

  • @markallisonparamotor
    @markallisonparamotor 3 ปีที่แล้ว +1

    Fascinating

  • @tomtonks7047
    @tomtonks7047 2 ปีที่แล้ว

    absolutely love this

  • @deoclescorso5687
    @deoclescorso5687 2 ปีที่แล้ว +1

    Fantástica tecnologia!

  • @Jimmyzb36
    @Jimmyzb36 3 ปีที่แล้ว +1

    Wow! Thanks

  • @maxshep2829
    @maxshep2829 3 ปีที่แล้ว

    Oooohhh, soooo many shiny buttons!! Must... Press... Them... All.......
    Oh, and nice plane and start-up sound too i suppose! Haha!

  • @phipsd8388
    @phipsd8388 3 ปีที่แล้ว +1

    This is super interesting!

  • @ThomasGabrielsen
    @ThomasGabrielsen 3 ปีที่แล้ว +1

    Very interesting! The clicking sound we can hear at 00:40, is that the fuel igniter?

    • @Mode_Sierra
      @Mode_Sierra  3 ปีที่แล้ว

      Hi, yes it’s the igniters firing away in the combustion chamber ready for fuel (and compressed air) to be introduced.

    • @ThomasGabrielsen
      @ThomasGabrielsen 3 ปีที่แล้ว

      @@Mode_Sierra Thank you!

  • @onur-vp7ek
    @onur-vp7ek 3 ปีที่แล้ว +1

    incredible video thx

  • @JimmyJo-ol9lp
    @JimmyJo-ol9lp 3 ปีที่แล้ว +1

    Nice thank you

  • @yolsclassics6347
    @yolsclassics6347 3 ปีที่แล้ว +1

    That was fascinating 😀

  • @bensmith7536
    @bensmith7536 3 ปีที่แล้ว +5

    i jump in my ford ranger and push a button, but in comparison to flicking switches in order, checking volts on a roof mounted device and hearing that turbine whine? ford missed an opportunity.

    • @Mode_Sierra
      @Mode_Sierra  3 ปีที่แล้ว +2

      That made me chuckle. Maybe we should write a strong letter to General Motors?

    • @bensmith7536
      @bensmith7536 3 ปีที่แล้ว

      @@Mode_Sierra Another one? Ok, done. ; )

  • @engineergopaljat1073
    @engineergopaljat1073 3 ปีที่แล้ว +2

    Osm vdo sir i like it.. Make more vdo like this.