Why Are True Airspeed And Indicated Airspeed Different?

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  • เผยแพร่เมื่อ 1 ธ.ค. 2024

ความคิดเห็น • 109

  • @Geobiery
    @Geobiery 6 ปีที่แล้ว +21

    Hoping to see a video about the mentioned "drag curve."

  • @djdalite
    @djdalite 6 ปีที่แล้ว +6

    These are always great and informative. It would be awesome if you started doing like a CFI series and explained in detail different aspects of lesson plans ie; aerodynamics, weight and balance, flight controls, ect...like an extreme breakdown of the PHAK. Anyway keep them comming, this is going into my CFI lesson playlist

  • @mba09freebord
    @mba09freebord 6 ปีที่แล้ว +5

    You guys should do a video on your "Pitch for airspeed, power for glideslope? Or the other way around?" article.

  • @byronelborracho
    @byronelborracho 6 ปีที่แล้ว +10

    True aviation channel! I love the content, keep it up guys! Greetings from Chile

  • @beuttenmuller
    @beuttenmuller 6 ปีที่แล้ว +5

    Had no idea a cirrus can climb to FL240. And actually climbs better than an airbus A320 !
    Well done guys ! Great video

    • @cutliss
      @cutliss 6 ปีที่แล้ว +1

      The shade 😆

  • @joemcmurray1172
    @joemcmurray1172 4 ปีที่แล้ว

    probably the best explanation of IAS v. TAS i have heard. thank you

  • @MikeKobb
    @MikeKobb 6 ปีที่แล้ว +4

    Great video! I hope you'll do the video on how the drag curve varies with altitude!

  • @joshdiehl2467
    @joshdiehl2467 6 ปีที่แล้ว +40

    Awesome content and cool shots- very professional!

  • @spd_bird
    @spd_bird 6 ปีที่แล้ว +24

    I would always get pissed when my over speed needle started to fall lower and lower in FSX as I climbed. I thought the plane wanted me to slow down as I got high which made no sense. Now it does.

    • @Boldmethod
      @Boldmethod  6 ปีที่แล้ว +7

      Glad we could help!

  • @swarajsandhu
    @swarajsandhu 6 ปีที่แล้ว +1

    Really happy to have come across this channel.. very well explained information and very well put together videos! Watched every single video in one day.. keep em coming..

  • @thegeek3348
    @thegeek3348 5 ปีที่แล้ว +16

    what does he say after "believe it not at the beginning?"

    • @ajmomoho
      @ajmomoho 4 ปีที่แล้ว +5

      “ Believe it or not, both of us use mach number.”
      He’s saying both jet pilots and GA pilots have systems in place which calculate your speed as a percentage of the speed of sound. That’s mach number.

    • @lyingcat9022
      @lyingcat9022 3 ปีที่แล้ว

      Thanks!

  • @craighill2696
    @craighill2696 3 ปีที่แล้ว

    Thank you for that excellent demonstration!

  • @MrBriteguy
    @MrBriteguy 6 ปีที่แล้ว +1

    Good to see that you guys have been hanging out at BJC. I may have taxied into your shot if that was you I saw filming on Sunday.

    • @Boldmethod
      @Boldmethod  6 ปีที่แล้ว

      That was us Chris!

  • @Matmediaonline
    @Matmediaonline 6 ปีที่แล้ว +1

    Fantastic. Such great quality. Thank you. Keep those videos coming!

  • @scottb721
    @scottb721 3 ปีที่แล้ว

    Starting to get flashbacks to my Aussie Airforce instrument fitter training exactly 30yrs ago.

  • @scodavis
    @scodavis 5 ปีที่แล้ว +5

    Hi Boldmethod, I really love your videos - why have you stopped publishing?

    • @Boldmethod
      @Boldmethod  5 ปีที่แล้ว +5

      We're back! Hope you're enjoying them.

  • @9BlockProductions
    @9BlockProductions 5 ปีที่แล้ว

    Wow, this is the first aeronautical video I've watched and it's amazing!! Great work. Definitely coming back here for more!

  • @87122tony
    @87122tony 6 ปีที่แล้ว

    Im doing my PPL in UK, great video...just need your met conditions!

  • @Buzzlightyear706
    @Buzzlightyear706 6 ปีที่แล้ว +3

    Good video, you're making everything very logical and simple. Keep it going :)
    Btw nice performance of this airplane :)

  • @peachtrees27
    @peachtrees27 6 ปีที่แล้ว +4

    Excellent video thank you. Although honestly I still don't see the actual real need for TAS due to winds and GPS groundspeed. All of this is just so painfully confusing and I've been a pilot for 8 years...

  • @D0cJekyll
    @D0cJekyll 6 ปีที่แล้ว +1

    Glad to see more!

  • @crusader5989
    @crusader5989 ปีที่แล้ว

    Your videos are excellent!!!

  • @BHRxRACER
    @BHRxRACER 6 ปีที่แล้ว +7

    Keep it up guys. Captain Joe also started with no attention or views and he's now very popular.

    • @Senseigainz
      @Senseigainz 5 ปีที่แล้ว +1

      BHRxRACER You mean FO Joe? 🤣

  • @Appreciation-Community
    @Appreciation-Community ปีที่แล้ว

    I wonder how this factors into combat. Would focusing on one type of airspeed over the over ever be advantageous or anything like that? What kind of speed shows in a fighters HUD?

  • @robsonbr1246
    @robsonbr1246 6 ปีที่แล้ว

    top notch educational video, well done!

  • @connorknudsen5602
    @connorknudsen5602 6 ปีที่แล้ว

    Absolutely amazing video love learning of this channel while going through my pilot license 👨‍✈️

  • @LiamTobin4
    @LiamTobin4 6 ปีที่แล้ว +1

    Your videos are fantastic, keep it up please!

  • @Pilot-Ali
    @Pilot-Ali 3 ปีที่แล้ว

    Nicely ellaborated.

  • @VMCAviationVideos
    @VMCAviationVideos 6 ปีที่แล้ว +1

    Very well explained, Thanks!

  • @cockpitconfessionstv3216
    @cockpitconfessionstv3216 6 ปีที่แล้ว

    You speak very well, I enjoyed this, thank you

  • @jakew9887
    @jakew9887 ปีที่แล้ว

    Great presentation. Thanks

  • @mateo672
    @mateo672 6 ปีที่แล้ว +1

    Hi! Question:
    During the example video that starts at 4:39, I noticed that the airspeed indicator on the left doesn't seem to move or change at all. I found it kind of odd that it wouldn't be jumping up or down slightly, due to turbulence. Why is that?

  • @vybhavasrinath
    @vybhavasrinath 5 ปีที่แล้ว +1

    Hey, found your videos very useful and knowledgeable. Could you make more that could help VFR students. Eg. Landing, Traffic patterns, ATC calls etc?

  • @stevem6711
    @stevem6711 6 ปีที่แล้ว

    Interesting - for flight above FL200 in an unpressurized aircraft, the AF requires 30 min of pre-breading on 100% Oxygen prior to exceeding 16,000 feet. The maximum time spent between FL200 & FL240 is 110 min. This is to minimize the chance of decompression sickness.

  • @prathameshacharya9739
    @prathameshacharya9739 6 ปีที่แล้ว +2

    Amazing video as always.

    • @Boldmethod
      @Boldmethod  6 ปีที่แล้ว

      Glad you liked it!

  • @Echin0idea
    @Echin0idea 6 ปีที่แล้ว +2

    Great video, as always! Quick question: Why the facemasks rather than the nasal cannulas for this flight? Just curious as to what goes into the decision of which oxygen delivery system to use.

    • @spencerbrown3875
      @spencerbrown3875 6 ปีที่แล้ว +3

      Echin0idea You use the nasal cannula when flying between 12,500 and 18,000. Above 18,000 requires the mask.

    • @Echin0idea
      @Echin0idea 6 ปีที่แล้ว +2

      Ah, got it, thanks. I was wondering if it was altitude dependent.

    • @ellenorbjornsdottir1166
      @ellenorbjornsdottir1166 6 ปีที่แล้ว

      Masks are more comfortable?

  • @HanifNGX
    @HanifNGX 3 ปีที่แล้ว +1

    But, what is the airspeed velocity of an unladen swallow?

  • @attorneyaviator1318
    @attorneyaviator1318 6 ปีที่แล้ว +1

    Wow. Amazing video. Thanks for posting. As a student pilot it helped explain TAS/IAS and how different factors affect each. Best website out there.

  • @pilottadeus3748
    @pilottadeus3748 ปีที่แล้ว

    If the static pressure decreases with altitude too, shouldn't these forces cancel each other out? So shouldn't the difference between the total pressure and the static pressure remain the same, thus showing the same airspeed?

  • @rwellford1
    @rwellford1 3 ปีที่แล้ว

    Thank you. This was very helpful.

  • @EliCohenMisterMedia
    @EliCohenMisterMedia 6 ปีที่แล้ว

    THANKS for the lesson!

  • @equals3forum
    @equals3forum 6 ปีที่แล้ว

    for the cuts of landings and takeoffs, could you make a small note of which airport it's at? They look beautiful and id love to visit them!

    • @equals3forum
      @equals3forum 6 ปีที่แล้ว

      Specifically the airport at 2:20

    • @AK907
      @AK907 6 ปีที่แล้ว

      The one landing on 12L is KBJC.

    • @equals3forum
      @equals3forum 6 ปีที่แล้ว

      ya i Flt there a lot, I was specifically looking for the take off shot at 2:20

    • @Boldmethod
      @Boldmethod  6 ปีที่แล้ว +1

      2:20 is a takeoff from Runway 32 at KSBS. Great airport!

    • @AK907
      @AK907 6 ปีที่แล้ว

      You all ever come to the TRACON for a tour? Let me know if you want to.

  • @amirulhisham7791
    @amirulhisham7791 6 ปีที่แล้ว +1

    Why IAS constant as the altitude is increasing?

  • @nursemike7399
    @nursemike7399 6 ปีที่แล้ว

    Best explanation ever!

  • @ritchierich2820
    @ritchierich2820 5 ปีที่แล้ว

    I never understood how you're supposed to know your pressure alt for your crusise performance chart I thought pressure alt is when you set 29.92 in the kollsman window. How are you supposed to get that pressure alt when you're still on the ground ? Any help would be appreciated.

  • @veeravignesh4525
    @veeravignesh4525 6 ปีที่แล้ว

    Bro please do videos about aircraft electrical systems like TRU,GDCU,IDG ..etc., ......@boldmethod

  • @ikichullo
    @ikichullo 6 ปีที่แล้ว +1

    Another amazing video!

    • @Boldmethod
      @Boldmethod  6 ปีที่แล้ว

      Thanks!

    • @ikichullo
      @ikichullo 6 ปีที่แล้ว

      No need! Your videos are already a good enough treat on their own!

  • @oudomvicheakouch4795
    @oudomvicheakouch4795 3 ปีที่แล้ว

    Hello, Sir, I have a question. Is it possible to know the speed of the aircraft if we only know the distance and time that the aircraft will be arriving? Since my problem did not mention other conditions, can I just the formula V=d/t?

  • @rocketspushoffair
    @rocketspushoffair 5 ปีที่แล้ว

    How do you know how much to nose down to follow the curve of the earth?

  • @Gainsforlife
    @Gainsforlife 7 หลายเดือนก่อน

    Nice explanation but what about the lesser known "flat earth speed variable" where the pressure changes with altitude are factored into mach calculations using the flat earth formula. The formula accounts for the expansion of space and the moons effect on gravity as well as the pressure exerted on the atmosphere. This allows for a far more accurate reading of TAS and IAS in real time

  • @jiajianhou426
    @jiajianhou426 4 ปีที่แล้ว

    Beautiful Diamond aircraft

  • @CNT12696
    @CNT12696 6 ปีที่แล้ว +1

    I'm curious, why was it reading 101% power?

    • @Boldmethod
      @Boldmethod  6 ปีที่แล้ว

      We'll have an answer for that in an article on the site soon - keep an eye out for it!

    • @ellenorbjornsdottir1166
      @ellenorbjornsdottir1166 6 ปีที่แล้ว

      Running rich when 100% is lean

  • @alexmp3821
    @alexmp3821 3 ปีที่แล้ว

    Great video. I have a question, in FSX using Boeing 737, I was descending, at 9,000 feet my indicate speed is 250 but TAS was 305, so I was wrong because flying over 250 TAS according to the rule?

    • @Micg51
      @Micg51 2 ปีที่แล้ว +1

      250 indicated. We don’t care about TAS other than for planning purposes.

    • @alexmp3821
      @alexmp3821 2 ปีที่แล้ว

      @@Micg51 thanks 👍

  • @carsonshahan3645
    @carsonshahan3645 6 ปีที่แล้ว +1

    Gulfstreams make great openers for great topics

  • @emmanueldassas
    @emmanueldassas 6 ปีที่แล้ว

    Great video

  • @andrewabbott5607
    @andrewabbott5607 2 ปีที่แล้ว

    Thanks!

  • @Adrian-tv4sj
    @Adrian-tv4sj 6 ปีที่แล้ว +2

    you should fly to vancouver

    • @SeanHollingsworth
      @SeanHollingsworth 6 ปีที่แล้ว

      Adrian
      Only if there is an attempt to land a sea plane on Barnes Lake; which is 8km north of Coquitlam lake. ;-)

  • @_Sweet_Pete
    @_Sweet_Pete 3 ปีที่แล้ว

    thank you!!

  • @MrDlfen721
    @MrDlfen721 6 ปีที่แล้ว

    At 5:38 I heard, "climb and maintain 230." Humm?

  • @azkanalen7032
    @azkanalen7032 6 ปีที่แล้ว

    Nice, do anyone know where Malik is from? He sounds exacly like the guy from Cinefix! :D

  • @Gryflir
    @Gryflir 6 ปีที่แล้ว

    that was very interesting

  • @goodisnipr
    @goodisnipr 3 ปีที่แล้ว

    What in the hell was the first sentence in this?
    The CC says "Believe it or not, both of us use smoke now"
    I heard "Believe it or not, both of us use (choke/swallowing a fly noise)"

  • @rmbb1981
    @rmbb1981 4 ปีที่แล้ว

    I don’t understand the difference between GS and TAS.

    • @rmbb1981
      @rmbb1981 4 ปีที่แล้ว

      Does it have something to do with that if you climb at a constant rate you will move through the air perhaps at the same speed as you were at level flight but you’re now not moving as fast in relation to the ground?

  • @madeastika_
    @madeastika_ 5 ปีที่แล้ว +2

    Aaand I still waiting

  • @brianr1840
    @brianr1840 5 ปีที่แล้ว

    Wish I could afford to fly a glass cockpit

  • @nickde6339
    @nickde6339 4 ปีที่แล้ว

    Still not clear.
    I am sure we can simplify it even more.

  • @globaltraders1338
    @globaltraders1338 5 ปีที่แล้ว

    saved me 300 bucks flying in a chair lol

  • @bobmccoy4652
    @bobmccoy4652 5 ปีที่แล้ว

    That seems like a lot of Math.

  • @marqueswilsonn
    @marqueswilsonn 6 ปีที่แล้ว

    Here’s a question, To get a college degree before going to flight school or to not get a college degree before going to flight school? For wannabe cargo pilots

    • @rex669
      @rex669 6 ปีที่แล้ว

      Chris Estabon you don’t really need a collage degree anymore with the pilot shortage going on. Just need your hours. However look into what carrier you want to fly for. Also combined collage and flight training can be a easy way to pay for flight school and collage with student loans. You do have pay that back with interest of course so can cost you more in the long run and the degree isn’t going to guarantee anymore pay for any job you’re starting with. However most major airlines still do prefer 4 year degrees.

  • @liammclain540
    @liammclain540 6 ปีที่แล้ว

    I know the aim says to but i cringe every time you say "tree" instead of "three"

  • @giggachad9446
    @giggachad9446 5 ปีที่แล้ว

    Wtf is he talking about