Bendix Air Data Computer - Part 2: Master Ken Explains How It Works

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  • เผยแพร่เมื่อ 21 ส.ค. 2024
  • Master Ken explains the amazing jet fighter analog computer made out of gears, that we opened up in this episode: • Bendix Air Data Comput...
    Bendix MG-1 Restoration Playlist: • Bendix Central Air Dat...
    Ken's in-depth blog article: www.righto.com/...
    Plenty of aerospace videos, including the ones about a later version of this computer on the "Le labo de Michel" channel:
    • LDM #302: Bendix Centr...
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ความคิดเห็น • 174

  • @CuriousMarc
    @CuriousMarc  ปีที่แล้ว +148

    Sorry had to reupload due to some rendering bug in the middle of the video. Also corrected my tongue slip of True Ground Speed instead of True Air Speed. No way to re-upload cleanly on TH-cam unfortunately, 15,000 views get erased and previous comments disappear in the internet black hole. So please re-post your sassy comment!

    • @erkinalp
      @erkinalp ปีที่แล้ว +4

      Well, you could have posted a correction notice.

    • @fgaviator
      @fgaviator ปีที่แล้ว +24

      15,000 views do not get lost: we all just re-watch the re-upload... 😀

    • @vicmac3513
      @vicmac3513 ปีที่แล้ว +1

      TH-cam behaved very weirdly because I was right at the rendering bug when you deleted the video.

    • @reneschmitz4845
      @reneschmitz4845 ปีที่แล้ว +5

      Will rewatch, re-like....

    • @bengelman2600
      @bengelman2600 ปีที่แล้ว +1

      I watched it again for that reason.

  • @akersmc
    @akersmc ปีที่แล้ว +124

    Pilot here, in English "pitot tube" is pronounced the way you have been pronouncing it. France played a significant role in the history and development of aviation so there are a bunch of french words in aviation. Aileron, empennage, fuselage, monocoque, canard, longeron, avionics, to name a few.

    • @8BitNaptime
      @8BitNaptime ปีที่แล้ว +10

      mayday...

    • @akersmc
      @akersmc ปีที่แล้ว +16

      @@8BitNaptime m'aidez

    • @Damien.D
      @Damien.D ปีที่แล้ว +9

      @@akersmc and the least severe "panne panne".

    • @MarcelHuguenin
      @MarcelHuguenin ปีที่แล้ว +4

      @@akersmc hmm… never thought about that 👍🏻

    • @patrickshaw8595
      @patrickshaw8595 ปีที่แล้ว +2

      Nacelle.
      "See that Grumman Bearcat? It looks like they strapped guns wings and a pilot on a DC-6 engine nacelle !"

  • @zh84
    @zh84 ปีที่แล้ว +35

    You call it "backed up since Christmas with editing videos": I call it "having four months' worth of videos in the pipeline to look forward to"!

  • @ErinJayEldridge
    @ErinJayEldridge ปีที่แล้ว +15

    A note on indicated airspeed: even though it's not the true airspeed, it's surprisingly useful because the lift from the wing is effected by many of the same factors. For a light aircraft staying below about 5km, you almost always are flying to a indicated airspeed, and only want to know true airspeed to guess at your groundspeed (which nowadays you mostly measure more-directly anyway).

  • @FrozenHaxor
    @FrozenHaxor ปีที่แล้ว +18

    What amazes me most is that a few transducers and a calculator grade microprocessor would replace all this nowadays, amazing effort on the manufacturer's part!

    • @sashimanu
      @sashimanu ปีที่แล้ว +3

      More like three microprocessors running overcomplicated code in lockstep with outputs going into a voting comparator for redundancy and fail-safety

    • @guidoscalise
      @guidoscalise ปีที่แล้ว +2

      @@sashimanu can you define what “overcomplicated” means?

    • @FrozenHaxor
      @FrozenHaxor ปีที่แล้ว

      @@sashimanu This old school mechanical computer has none of that.

    • @lwilton
      @lwilton ปีที่แล้ว

      @@guidoscalise It's probably written in ADA, requires at least a 32 bit CPU with at least 8 MB of ram, and I'd be real surprised if the source code was under 100K lines. I would not in the slightest be surprised if the source code was over 400K lines.

    • @mfree80286
      @mfree80286 ปีที่แล้ว +2

      @@FrozenHaxor And, it's realtime. Unless you devote a LOT of time into developing an RTOS or dedicating cores to a given task, you'll have some possibly significant lag in a coded solution.

  • @kh40yr
    @kh40yr ปีที่แล้ว +4

    "Antikythera Mechanism V2.0, I wonder when they dig this up 2000 years from now, they will be just as amazed. Love the miniature ball bearings on each countershaft.

  • @KeritechElectronics
    @KeritechElectronics ปีที่แล้ว +11

    Insane complexity indeed. Almost beats the Antikythera mechanism, haha!

  • @Zadster
    @Zadster ปีที่แล้ว +3

    I imagine most of the mechanical hardware here was probably developed around the time of WW2, way back in the 1940s, for bomb-aiming computers etc. Mindboggling!

  • @awesome3165
    @awesome3165 ปีที่แล้ว +4

    Haha Ken. "Don't turn the screws!!!"

  • @gryffuscze
    @gryffuscze 8 หลายเดือนก่อน

    Strangely enough, what amazed me the most and still gives me hard time to accept is seeing Master Ken standing next to a computer full of gears and SPRINGS..... WITHOUT GLASSES 0:40 😮😮🤣
    Cheers and thanks to you guys, you are the best.

  • @whiskeytuesday
    @whiskeytuesday ปีที่แล้ว +16

    I mean who wouldn't want a chance to watch this video for the first time for a second time. The masters at work!

    • @Allan_aka_RocKITEman
      @Allan_aka_RocKITEman ปีที่แล้ว

      _"At last we meet for the first time for the last time!"_
      -- SPACEBALLS [1987] 😉

  • @andrewkieran8942
    @andrewkieran8942 ปีที่แล้ว +28

    “Any sufficiently advanced technology is indistinguishable from magic”
    -- Arthur C. Clarke

    • @senilyDeluxe
      @senilyDeluxe ปีที่แล้ว +7

      Watching Marc's channel, I use to say "Any sufficiently antiquated technology is indistinguishable from magic" - case in point with 1960s frequency counters that go up to over a Gigahertz even though the electronics couldn't handle more than a few dozen Megahertz - and went to using fancy math to do the 100MHz and GHz range.
      Or sensing Microamps by chopping the signal with a wild neon light opto coupler circuit.

    • @michaelbrodsky
      @michaelbrodsky ปีที่แล้ว +1

      Except that this belongs in a museum.

    • @brunos6599
      @brunos6599 ปีที่แล้ว +1

      Any sufficiently old technology is indistinguishable from aliens.

  • @dirty364
    @dirty364 6 หลายเดือนก่อน

    Blows my mind 🤯 how intelligent some people are! What a piece of art! Id like to think I’m somewhat tech savvy and mechanically inclined but when I see what people were building in the 50s and watch stuff like this I feel dumb lol

  • @thesteelrodent1796
    @thesteelrodent1796 ปีที่แล้ว +1

    rewatching the reup to get that viewcount (re)up 😉

  • @yyzkevin416
    @yyzkevin416 ปีที่แล้ว +2

    7:18 "Don't turn the screws!"

  • @BGTech1
    @BGTech1 ปีที่แล้ว +3

    Incredible piece of engineering and craftsmanship! Thanks for this.

  • @deanmaclanders6115
    @deanmaclanders6115 ปีที่แล้ว +2

    Can confirm...As someone who flew small aircraft, and spent several years working in a wind tunnel, in english Canada, it was always pronounced peet-oh

  • @frankwales
    @frankwales ปีที่แล้ว +2

    [Sassy comment re-post, as demanded :-P ] As an old software guy, I'd love to know how this kind of gear (sic) was debugged and verified.

  • @mikefromwa
    @mikefromwa ปีที่แล้ว +2

    A truly incredible electromechanical device. The amount of work that went into creating it must have been staggering.

  • @tomteiter7192
    @tomteiter7192 ปีที่แล้ว +2

    Totally off topic, but seeing the little tektronix 222 sitting on top of the instrument stack sent me right to eBay again... It's SO cute! I want one!

  • @kennethbeal
    @kennethbeal ปีที่แล้ว

    Thank you! Nice name. :) Great ending! Showed me why they're called "synchros" -- they synchronize two devices that are at a distance. Cartoons growing up, "synchronize your watches!" :)

  • @soniclab-cnc
    @soniclab-cnc ปีที่แล้ว +2

    Master Ken at it again deciphering the impossible.

  • @benjaminhanke79
    @benjaminhanke79 ปีที่แล้ว +2

    I hope someday Marc and Master Ken get their hands on a fluidic computer, a pneumatic logic device without moving parts.

  • @Patrick_B687-3
    @Patrick_B687-3 ปีที่แล้ว +2

    Time and gain this channel reminds me how smart I’m not. Ken and Mark are just incredible.

  • @RoryMacdonald-pfff
    @RoryMacdonald-pfff ปีที่แล้ว +1

    I’m curious what the servicing of such a system would be like - particularly the lubrication of the various pivots/axles. Fascinating unit - the use of cams and gears to conduct calculations and display results … this is the kind of stuff that would have brought maths at school to life.

  • @craigcooknf
    @craigcooknf ปีที่แล้ว

    Absolutely fascinating. The mechanical computers in aerospace, yesterday and today are amazing!

  • @38911bytefree
    @38911bytefree ปีที่แล้ว +1

    This thing is a marvel, a piece of art.

  • @AndyMarsh
    @AndyMarsh ปีที่แล้ว +1

    Such a cool machine! Company I used to work for once made a Syncro Trainer to teach studends how they worked. It was before my time and I always wondered what syncros were used for, now I know!

    • @jnbfrancisco
      @jnbfrancisco ปีที่แล้ว

      I used a synchro trainer when I was an instructor in the USAF at Chanute AFB Illinois in 1974 to 1977.

  • @dbenson3114
    @dbenson3114 ปีที่แล้ว

    6:53 this is my favorite part of the machine

  • @dziban303
    @dziban303 ปีที่แล้ว

    This video was in my recommendations. Ken Shirriff is an amazing guy, his is one of the accounts I miss the most from Twitter.

  • @StupidLilAdv
    @StupidLilAdv ปีที่แล้ว

    Glad it's back! I was watching when it was taken down. "I was using that!"

  • @johnkaufmann4711
    @johnkaufmann4711 ปีที่แล้ว

    That is sooooo cool . Thanks .

  • @waynestock300
    @waynestock300 ปีที่แล้ว +1

    Much better. Fascinating as always and master Ken never disappoints! ❤

  • @frederickwise5238
    @frederickwise5238 ปีที่แล้ว

    Watching this makes me feel even worse than I did back in 1962. I had no idea how complex an ADC was. Fresh out of the Navy, I went to work for NAA on the A3J Vigilante. One of my earlier tasks was installing an ADC. Not sure why my lead man for the training period didnt catch it but I hooked up two of the "air inputs" backwards and of course it wrecked the computer. I wasnt penalized but I felt really bad and stupid for all of the work I caused for the instrumentation repair lab and the expense to the company. I never made another mistake. Made "D" sure I knew what I was doing from then on.
    (Somebody else on 3rd shift moved the gear up lever when the airframe was powered up for some tests, the gear came up and the plane sat down.)

  • @hydranmenace
    @hydranmenace ปีที่แล้ว +1

    My wife wanted to know what we should watch before bed. She was not expecting this.

  • @luthmhor
    @luthmhor ปีที่แล้ว

    Pressure is just energy per unit volume. The dynamic pressure component (kinetic energy) doesn’t actually exert pressure on the pipe walls in a flowing fluid, so it isn’t measured with regular pressure gauges. To measure it we use the pitot tube which takes and stops the fluid, thereby converting that kinetic energy to potential energy where it does exert a force and so can be measured. The easiest way is as shown in your diagram, just the difference in pressure head. I used to be a pipeline engineer, liquids only. Compressible fluids like air are much more problematic to constrain with assumptions like engineers love to do 😆.

  • @TeslaTales59
    @TeslaTales59 ปีที่แล้ว +1

    Always worth a 2nd watch!

  • @johnnymnemonic69
    @johnnymnemonic69 ปีที่แล้ว

    Next level tech even today

  • @martindowney7915
    @martindowney7915 ปีที่แล้ว

    Wow amazing engineering.

  • @jamesbronson8713
    @jamesbronson8713 ปีที่แล้ว

    Amazing engineering.

  • @TheIceGryphon
    @TheIceGryphon ปีที่แล้ว

    It’s amazing to see part of one of my favorite planes. F-86 Sabre was amazing aircraft.

  • @ropersonline
    @ropersonline ปีที่แล้ว +2

    Commenting on the connectors for a 2nd time allows me to go into greater detail: Turns out the innards sport a different set of connectors (male DD-50, DC-37 & DA-15 D-subs, see 0:39) than the faceplate, which has round connectors (see 0:13). So there must be a set of matching and perfectly aligned female D-sub connectors on the inside of the faceplate, an example of which arrangement in the form of a DC-37 (not the one on the faceplate but further down on the side) was seen in part 1 at 2m26s. Interesting that they used internal connectors at all, prolly for ease of assembly & maintenance. Pls show us the inner faceplate.

  • @MarcelHuguenin
    @MarcelHuguenin ปีที่แล้ว +3

    no worries, you get another complete view and comment. I think this is yet another piece of amazing technology. Nowadays this would probably be of an astronomical cost to develop and build such a device. So how was that done back in the day?

  • @Shady97342
    @Shady97342 ปีที่แล้ว +5

    It'd be neat if you could get your hands on an IBM AP-101. Not only was it in the Space Shuttle but also in a number of jets including the B1 Lancer! It runs a language I just learned about called JOVIAL.

  • @tomsherwood4650
    @tomsherwood4650 ปีที่แล้ว

    I am surprised that you cannot get tech data for that device anywhere, it is obviously obsolete for military purposes. After working on similar stuff on vintage autopilots, I have a lot of respect for anyone can go thru that thing and make it work to specs and certify it.

  • @HiwasseeRiver
    @HiwasseeRiver ปีที่แล้ว

    Aww - Takes me back to my class in LaPlace Transforms - in LaPlace space the transfer functions look very simple (inputs and outputs). Side story - back in the pre computer days I remember a flow rate display in an oil refinery control room - the only catch was it was the square of the real flow rate. You had to take the square root (in your head or look it up) to get the real flow rate - but the operators worked with the display square - crazy

  • @selimkucukates30
    @selimkucukates30 ปีที่แล้ว

    Thank you very much for this wonderful work you have done.

  • @nateerb3114
    @nateerb3114 ปีที่แล้ว +2

    Said it before, and I'll say it again: I wish Master Ken was my Dad. Keep up the hard work of making vids, Marc. How else are we going to learn out here?

  • @SkyhawkSteve
    @SkyhawkSteve ปีที่แล้ว +2

    Any chance of a video to explain magnetic amplifiers? I've got vague recollections that the core saturation was adjusted to change the coupling of signal from primary to secondary... but that could be very wrong. For applications that required robust parts, a magnetic amp seems like a clear winner over vacuum tubes.

  • @chrisnizer5702
    @chrisnizer5702 ปีที่แล้ว

    Thanks for showing elevator music the proper love and respect it deserves. The air data computer is pretty cool too by the way! Thanks for another great vintage technology video my friends, Semper Fidelis.

  • @largepimping
    @largepimping ปีที่แล้ว

    Just Ken doing Ken Things (tm). No big deal.

  • @valentinrusu8844
    @valentinrusu8844 ปีที่แล้ว

    Soo cooool! Mind blowing....

  • @n7275
    @n7275 ปีที่แล้ว

    Very cool.

  • @SubTroppo
    @SubTroppo ปีที่แล้ว +2

    My comment in the original was about Bendix's change from mainly electro-mechanical to electronic in this form of instrumentation. When was that?

    • @CuriousMarc
      @CuriousMarc  ปีที่แล้ว +5

      It’s very progressive. Some part of the calculation gets replaced by an op amp or two, while the rest stays on gears and synchros. eventually everything gets the analog electronic treatment, then the digital enters. Michel (from the channel “Le labo de Michel”) has a later model of this where you can see that happening.

    • @CuriousMarc
      @CuriousMarc  ปีที่แล้ว +1

      I found Michel's video: th-cam.com/video/buoNSv689r8/w-d-xo.html . One of the next revisions of this, where you start to see a mix of op-amp analog electronics and electro-mechanics.

  • @mattikaki
    @mattikaki ปีที่แล้ว

    I have an old mechanical plane altimeter and it is astonishing how accurate it is. If I move it up and down in my hand it shows the difference.

  • @ShainAndrews
    @ShainAndrews ปีที่แล้ว

    Really is an interesting solution.

  • @wildcat64100
    @wildcat64100 ปีที่แล้ว

    Fascinating to see this type of equipment that bridged the gap from analog to digital and were probably necessary to force electronic advancements as these electronic-mechanical hybrids became increasingly unwieldy and expensive.

  • @repatch43
    @repatch43 ปีที่แล้ว +1

    Analog computers are immensely fascinating. I saw a military course from I think the 50s? that described the basic functional elements of analog computers, ending with a description of how all these components were put together to form a targeting computer.

  • @videoviewer2008
    @videoviewer2008 ปีที่แล้ว

    Good to have some videos "in the can". Thanks.

  • @usvalve
    @usvalve ปีที่แล้ว

    Why is it that this is so much more fascinating than a microcontroller and yards of program printout? Yeah, when I put it that way I think maybe I know :-D It does remind me of the Antikythera. Now I want somebody to do an animation showing each piece of it working!

  • @henryD9363
    @henryD9363 ปีที่แล้ว +4

    Minor note. At 3:23 the drawing implies that the air going past the static port is at velocity V.
    Actually, the static port is located at a place where the air velocity is close to zero. If you attach a little string at the static point you would see it's not moving in any particular direction. Just flopping around due to a bit of turbulence.
    The locations of a static port on an aircraft are chosen so there is essentially no airflow velocity at the surface. Hence, static port.
    If there was a velocity at that point, then the Bernoulli effect would cause a suction. In other words, a negative pressure relative to the static value.

    • @mikebarushok5361
      @mikebarushok5361 ปีที่แล้ว +1

      Yes, exactly. Usually well past the beginning of the taper of the tail part of the fuselage. But also normally pairs plumbed together from opposite sides to reduce the effects present when crabbing or in significant yaw maneuvers.

  • @tfhhjh3372
    @tfhhjh3372 ปีที่แล้ว

    The reality is that an analog computer has advantages over digital ones, but the disadvantages must be constantly calibrated.
    And as the measurements are repeated with the same parameters, you will never have the same results since, being continuous, there will inevitably be variations.

  • @MegaGman61
    @MegaGman61 ปีที่แล้ว

    Amazing machine!

  • @timmoles9259
    @timmoles9259 ปีที่แล้ว +1

    I had to slow the speed to .75 just to absorb it all, not counting pause and understanding. Thank you

    • @wouterke9871
      @wouterke9871 ปีที่แล้ว +1

      Follow the link to Ken's website, all and more is there written out with close-up pics 👌

  • @cpm1003
    @cpm1003 ปีที่แล้ว +2

    It's always surprised me that they're able to get static air pressure from anywhere on a plane, when it's travelling so fast. It seems like there would always be some pressure or vacuum, and it would be bouncing around like crazy.

    • @mikebarushok5361
      @mikebarushok5361 ปีที่แล้ว +5

      It's not quite as simple as described. Generally there are pairs of static ports, one on each side, plumbed together to get the average. And either during development many locations are tested starting with scale models in wind tunnels and also full scale testing on prototype(s) or, extensive computer modeling can determine a nearly optimal set of locations.
      In any case there are errors and then airframe specific corrections.
      None of this is necessary for one specific type of airborne use. Hot air balloon altimetry requires nothing more than the open port being in relatively undisturbed air.

  • @mixolydian2010
    @mixolydian2010 ปีที่แล้ว

    Mindbogglingly wonderful, thanks a lot.

  • @yuglesstube
    @yuglesstube ปีที่แล้ว +2

    Excellent! Thanks. What year is this unit and how did you get it?

  • @ptonpc
    @ptonpc ปีที่แล้ว

    Amazing what can be done with clever engineering.

  • @mx0r
    @mx0r ปีที่แล้ว +2

    I was just watching the blank section. You were like 30 seconds late with re-upload. 😅

  • @alvarobravo177
    @alvarobravo177 ปีที่แล้ว +1

    Re-like!

  • @pauldzim
    @pauldzim ปีที่แล้ว +1

    Holy crap, this is like Flintstones technology, amazing that jet airplanes in the 50s and 60s didn't crash more often!

  • @DanielGBenesScienceShows
    @DanielGBenesScienceShows ปีที่แล้ว +1

    Very Large Scale Integration microchips don’t blow my mind (they should but they just don’t).
    THIS, however… THIS completely blows my struggling, broken, little, feeble mind.

  • @marvintpandroid2213
    @marvintpandroid2213 ปีที่แล้ว +2

    Re-engagement

  • @donmoore7785
    @donmoore7785 ปีที่แล้ว

    This shows that you guys are not afraid of diving into pretty much anything, except a pile of garbage, to figure out how it works AND how to get it working. That is an impressive piece of equipment. Just imagine people looking around for what could be improved with microelectronics once they were invented - I assume that a good portion of this is done in electronics these days.

  • @alexdehotot2712
    @alexdehotot2712 ปีที่แล้ว

    I've got to say, i've always heard the correct, french, pronunciation of Pitot all round the world from many aviation people!

  • @bigwinterboy
    @bigwinterboy ปีที่แล้ว

    Awsome content and technology

  • @TechGorilla1987
    @TechGorilla1987 ปีที่แล้ว

    Master Ken is the only person that I can think of that would leave Kim Peek in silence and awe...

  • @Derpy1969
    @Derpy1969 ปีที่แล้ว

    Ken looks like a young Christopher Lee. He just needs the voice.

  • @VladimirTolskiy
    @VladimirTolskiy ปีที่แล้ว

    How would a typical cam be connected to a differential in this computer?
    Cams produce a sweeping motion and differentials work with full revolutions.

  • @andie_pants
    @andie_pants ปีที่แล้ว +2

    Master Ken is a stone-cold badass, and I'll fight anyone who says otherwise. 🤺

    • @FooMeister
      @FooMeister ปีที่แล้ว +2

      He's great, everyone featured on the channel is brilliant. Why does Marc call him "Master"?

    • @andie_pants
      @andie_pants ปีที่แล้ว

      @@FooMeister You'd have to ask Marc. I'm just playing along.

    • @nmccw3245
      @nmccw3245 ปีที่แล้ว

      @@FooMeister - google ken shirriff cv

    • @benjaminhanke79
      @benjaminhanke79 ปีที่แล้ว

      @@FooMeister Because he's like Master Yoda, without him the whole series would be pointless. 😉

  • @iamdarkyoshi
    @iamdarkyoshi ปีที่แล้ว

    Can't remember if I commented on the original or not. Very cool piece of equipment.

  • @simonturnill
    @simonturnill ปีที่แล้ว

    Love your videos Marc, have been a subscriber since you were at 15k, but can you change the elevator music? It gives me a 12 hour ear worm every time I hear it...!!!! Haha!

  • @NUTTER8291
    @NUTTER8291 ปีที่แล้ว

    MY HEAD HURTS !!! 😂

  • @Line-Ways
    @Line-Ways ปีที่แล้ว

    Thats even more complex than my brain

  • @glenncronise7775
    @glenncronise7775 ปีที่แล้ว

    In the early 70s I worked on a printed circuit board that would do the same thing with opamps and comparators. Board was about 9X5 inches. No micros.

  • @bogywankenobi3959
    @bogywankenobi3959 ปีที่แล้ว

    I maintained the test software for the F-16 ADC at Hill AFB for a while back in the late 80s. It was nothing as interesting as your Bendix ADC. And frankly it could be improved by replacing all the electronics with an off-the-shelf Arduino Nano.

  • @davidf2281
    @davidf2281 ปีที่แล้ว +2

    I think I said this in the last instalment but holy heck the sheer cost of this thing at the time hardly bears thinking about. Must be a couple of houses at least.

  • @Consequator
    @Consequator ปีที่แล้ว

    Imagine having to design this thing, and then having to actually fit all that into an enclosed box as small as possible.

  • @Allan_aka_RocKITEman
    @Allan_aka_RocKITEman ปีที่แล้ว

    @CuriousMarc >>> Great video...👍

  • @624Dudley
    @624Dudley ปีที่แล้ว +1

    I’ve been wondering, Marc: are you an aviator yourself?

    • @CuriousMarc
      @CuriousMarc  ปีที่แล้ว +2

      Glider pilot, but I haven’t flown in years.

    • @624Dudley
      @624Dudley ปีที่แล้ว +1

      @@CuriousMarc Roger. I’ve had a lifetime of being owned by airplanes, but recently the high cost has made me throw in the towel.

  • @hellsong22
    @hellsong22 ปีที่แล้ว +3

    Great explanation, very informative.

  • @douglasjohnson4382
    @douglasjohnson4382 ปีที่แล้ว

    An Antikythera Device for the jet age.

  • @Paul_Bearden
    @Paul_Bearden ปีที่แล้ว

    1962, holy crap!

  • @indiodehongo
    @indiodehongo ปีที่แล้ว

    Какое же всё было тяжеленное. Сейчас в одной детальке от смартфона всё это есть

  • @pickle5051
    @pickle5051 ปีที่แล้ว

    How can I get one of these. I would love to hear and see this in action

  • @rael5469
    @rael5469 ปีที่แล้ว

    What's the difference between a syncro and a resolver? The Angle of Attack vane on an Airbus A320 has three.....resolvers? ....or is it syncros? The A320 has three air data / inertial reference units and three angle of attack vanes.....each with three resolvers.

    • @CuriousMarc
      @CuriousMarc  ปีที่แล้ว +1

      They are cousins, the difference is explained in part 3: th-cam.com/video/8QvoY4_xBjw/w-d-xo.html

  • @robertobryk4989
    @robertobryk4989 ปีที่แล้ว +1

    How does the coarse and fine synchro setup work? I don't understand how can the coarse one be useful there at all.
    Fine synchro alone could work, as long as the value never changed quickly enough/we always had power when the axles were moving: the total number of its turns would agree between both sides under these circumstances.
    If we want the coarse synchro to help deal with fine synchro desynchronization, we need it to be able to overpower the fine synchro. But then I'd expect its error to also overpower the fine synchro and thus to make the fine synchro useless.
    What am I missing?

    • @mfree80286
      @mfree80286 ปีที่แล้ว +1

      It may be to widen the "response" of rate change that the synchros can transmit electrically. Probably more to do with the second derivative, the rate of change of the measured rate. The synchros geared together would always be locked, but the coarses may aid in the acceleration or braking of the fines to keep the total reflected output changing closer to reality.
      At least, that's what my mind's applying to the problem, right or wrong.

  • @gertebert
    @gertebert ปีที่แล้ว +1

    Oh that obnoctious 110VAC 400Hz. I once owned an aircraft tube amp tripler containing a 2CV2797 If I remember that number correctly. It was sort of a 4CX250. I rebuild the input to 430 MHz and used it for over a decade to make 400 Watts CW at 70 cm. I aslo had to rebuild the power cuircuit to run on EU 220 VAC 50Hz.

  • @explorer914
    @explorer914 ปีที่แล้ว +1

    I used to pronounce Pitot as Pie-toe-t. But now as I learned some French I know the right way. :)

  • @filipesimoes5398
    @filipesimoes5398 ปีที่แล้ว

    I believe the term electromechanical fits better to define this things...