What causes the sudden spool-up sound from an F-16 when enabling afterburner?What is an afterburner and how...

Where to refill my bottle in India?

Lied on resume at previous job

Why was the "bread communication" in the arena of Catching Fire left out in the movie?

What does 'script /dev/null' do?

Pristine Bit Checking

What does it exactly mean if a random variable follows a distribution

Is there a name of the flying bionic bird?

Doomsday-clock for my fantasy planet

What happens when a metallic dragon and a chromatic dragon mate?

Was there ever an axiom rendered a theorem?

What is the meaning of "of trouble" in the following sentence?

Does it makes sense to buy a new cycle to learn riding?

Is Fable (1996) connected in any way to the Fable franchise from Lionhead Studios?

Can I find out the caloric content of bread by dehydrating it?

Is ipsum/ipsa/ipse a third person pronoun, or can it serve other functions?

Could a US political party gain complete control over the government by removing checks & balances?

Re-submission of rejected manuscript without informing co-authors

Shall I use personal or official e-mail account when registering to external websites for work purpose?

LWC and complex parameters

Is domain driven design an anti-SQL pattern?

Why did the Germans forbid the possession of pet pigeons in Rostov-on-Don in 1941?

If a centaur druid Wild Shapes into a Giant Elk, do their Charge features stack?

How would photo IDs work for shapeshifters?

Why is the design of haulage companies so “special”?



What causes the sudden spool-up sound from an F-16 when enabling afterburner?


What is an afterburner and how long can a jet fly on afterburner?What do we hear, on the ground, from a helicopter in flight?How does an aircraft distribute fuel equally between powering the turbines on the engine and injecting it into the afterburner?Why do military jets seem to always take off using the afterburner?What effect would a afterburner have on the compressor if the nozzle outlet is not increased?What causes the “growl” of some large turbofans at takeoff thrust?What did the “gear warning horn” on the North American P-51 sound like?Bright exhaust in afterburner vs no visible (bright) exhaust when not in afterburner?What's the mechanical 'whoosh, whoosh' sound in this video?Is jet fuel typically injected before or after the flame holder in an afterburner?













3












$begingroup$


What causes the sudden spool-up sound from an F-16 when enabling afterburner?



I've included a video to make it clear what sound I'm referring to:








at 1:16, I assume the pilot engages afterburner (again), and there is a sudden spool-up sound associated with this.



Am I even correct in assuming this is what's happening? I don't understand what this sound is though, it doesn't seem to appear consistently. Throughout the video, it appears the pilot engages afterburner and turns it off multiple times, but the sound only appears once.



Bonus question: What is the purpose of running the engine like this, and how is the F-16 attached to the ground?










share|improve this question









$endgroup$












  • $begingroup$
    Thanks for the early accept. Of course feel free to change it if a more helpful answer is posted.
    $endgroup$
    – ymb1
    3 hours ago
















3












$begingroup$


What causes the sudden spool-up sound from an F-16 when enabling afterburner?



I've included a video to make it clear what sound I'm referring to:








at 1:16, I assume the pilot engages afterburner (again), and there is a sudden spool-up sound associated with this.



Am I even correct in assuming this is what's happening? I don't understand what this sound is though, it doesn't seem to appear consistently. Throughout the video, it appears the pilot engages afterburner and turns it off multiple times, but the sound only appears once.



Bonus question: What is the purpose of running the engine like this, and how is the F-16 attached to the ground?










share|improve this question









$endgroup$












  • $begingroup$
    Thanks for the early accept. Of course feel free to change it if a more helpful answer is posted.
    $endgroup$
    – ymb1
    3 hours ago














3












3








3





$begingroup$


What causes the sudden spool-up sound from an F-16 when enabling afterburner?



I've included a video to make it clear what sound I'm referring to:








at 1:16, I assume the pilot engages afterburner (again), and there is a sudden spool-up sound associated with this.



Am I even correct in assuming this is what's happening? I don't understand what this sound is though, it doesn't seem to appear consistently. Throughout the video, it appears the pilot engages afterburner and turns it off multiple times, but the sound only appears once.



Bonus question: What is the purpose of running the engine like this, and how is the F-16 attached to the ground?










share|improve this question









$endgroup$




What causes the sudden spool-up sound from an F-16 when enabling afterburner?



I've included a video to make it clear what sound I'm referring to:








at 1:16, I assume the pilot engages afterburner (again), and there is a sudden spool-up sound associated with this.



Am I even correct in assuming this is what's happening? I don't understand what this sound is though, it doesn't seem to appear consistently. Throughout the video, it appears the pilot engages afterburner and turns it off multiple times, but the sound only appears once.



Bonus question: What is the purpose of running the engine like this, and how is the F-16 attached to the ground?















f-16 afterburner sound






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked 3 hours ago









AlphaCentauriAlphaCentauri

4391310




4391310












  • $begingroup$
    Thanks for the early accept. Of course feel free to change it if a more helpful answer is posted.
    $endgroup$
    – ymb1
    3 hours ago


















  • $begingroup$
    Thanks for the early accept. Of course feel free to change it if a more helpful answer is posted.
    $endgroup$
    – ymb1
    3 hours ago
















$begingroup$
Thanks for the early accept. Of course feel free to change it if a more helpful answer is posted.
$endgroup$
– ymb1
3 hours ago




$begingroup$
Thanks for the early accept. Of course feel free to change it if a more helpful answer is posted.
$endgroup$
– ymb1
3 hours ago










1 Answer
1






active

oldest

votes


















3












$begingroup$

My first guess based on the sound repeating when the thrust is idled near the end of the video is that's the sound of the actuators of the variable geometry nozzle.



Googling that actually auto-completed it to Great F-16 Actuator Sound (video).



Bonus answers to the bonus questions:




  1. It's a ground test of the engine, making sure it's working fine with no leaks.

  2. The F-16 has a tail-hook like carrier-borne planes, if you look closely a cable is attached to that hook, which itself is attached to the ground. The F-16, F-15, and other land-based fighters have it in case of an emergency, they'd land on a runway with a braking wire across it.






share|improve this answer









$endgroup$














    Your Answer





    StackExchange.ifUsing("editor", function () {
    return StackExchange.using("mathjaxEditing", function () {
    StackExchange.MarkdownEditor.creationCallbacks.add(function (editor, postfix) {
    StackExchange.mathjaxEditing.prepareWmdForMathJax(editor, postfix, [["$", "$"], ["\\(","\\)"]]);
    });
    });
    }, "mathjax-editing");

    StackExchange.ready(function() {
    var channelOptions = {
    tags: "".split(" "),
    id: "528"
    };
    initTagRenderer("".split(" "), "".split(" "), channelOptions);

    StackExchange.using("externalEditor", function() {
    // Have to fire editor after snippets, if snippets enabled
    if (StackExchange.settings.snippets.snippetsEnabled) {
    StackExchange.using("snippets", function() {
    createEditor();
    });
    }
    else {
    createEditor();
    }
    });

    function createEditor() {
    StackExchange.prepareEditor({
    heartbeatType: 'answer',
    autoActivateHeartbeat: false,
    convertImagesToLinks: false,
    noModals: true,
    showLowRepImageUploadWarning: true,
    reputationToPostImages: null,
    bindNavPrevention: true,
    postfix: "",
    imageUploader: {
    brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
    contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
    allowUrls: true
    },
    noCode: true, onDemand: true,
    discardSelector: ".discard-answer"
    ,immediatelyShowMarkdownHelp:true
    });


    }
    });














    draft saved

    draft discarded


















    StackExchange.ready(
    function () {
    StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2faviation.stackexchange.com%2fquestions%2f62171%2fwhat-causes-the-sudden-spool-up-sound-from-an-f-16-when-enabling-afterburner%23new-answer', 'question_page');
    }
    );

    Post as a guest















    Required, but never shown

























    1 Answer
    1






    active

    oldest

    votes








    1 Answer
    1






    active

    oldest

    votes









    active

    oldest

    votes






    active

    oldest

    votes









    3












    $begingroup$

    My first guess based on the sound repeating when the thrust is idled near the end of the video is that's the sound of the actuators of the variable geometry nozzle.



    Googling that actually auto-completed it to Great F-16 Actuator Sound (video).



    Bonus answers to the bonus questions:




    1. It's a ground test of the engine, making sure it's working fine with no leaks.

    2. The F-16 has a tail-hook like carrier-borne planes, if you look closely a cable is attached to that hook, which itself is attached to the ground. The F-16, F-15, and other land-based fighters have it in case of an emergency, they'd land on a runway with a braking wire across it.






    share|improve this answer









    $endgroup$


















      3












      $begingroup$

      My first guess based on the sound repeating when the thrust is idled near the end of the video is that's the sound of the actuators of the variable geometry nozzle.



      Googling that actually auto-completed it to Great F-16 Actuator Sound (video).



      Bonus answers to the bonus questions:




      1. It's a ground test of the engine, making sure it's working fine with no leaks.

      2. The F-16 has a tail-hook like carrier-borne planes, if you look closely a cable is attached to that hook, which itself is attached to the ground. The F-16, F-15, and other land-based fighters have it in case of an emergency, they'd land on a runway with a braking wire across it.






      share|improve this answer









      $endgroup$
















        3












        3








        3





        $begingroup$

        My first guess based on the sound repeating when the thrust is idled near the end of the video is that's the sound of the actuators of the variable geometry nozzle.



        Googling that actually auto-completed it to Great F-16 Actuator Sound (video).



        Bonus answers to the bonus questions:




        1. It's a ground test of the engine, making sure it's working fine with no leaks.

        2. The F-16 has a tail-hook like carrier-borne planes, if you look closely a cable is attached to that hook, which itself is attached to the ground. The F-16, F-15, and other land-based fighters have it in case of an emergency, they'd land on a runway with a braking wire across it.






        share|improve this answer









        $endgroup$



        My first guess based on the sound repeating when the thrust is idled near the end of the video is that's the sound of the actuators of the variable geometry nozzle.



        Googling that actually auto-completed it to Great F-16 Actuator Sound (video).



        Bonus answers to the bonus questions:




        1. It's a ground test of the engine, making sure it's working fine with no leaks.

        2. The F-16 has a tail-hook like carrier-borne planes, if you look closely a cable is attached to that hook, which itself is attached to the ground. The F-16, F-15, and other land-based fighters have it in case of an emergency, they'd land on a runway with a braking wire across it.







        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered 3 hours ago









        ymb1ymb1

        70.1k7224372




        70.1k7224372






























            draft saved

            draft discarded




















































            Thanks for contributing an answer to Aviation Stack Exchange!


            • Please be sure to answer the question. Provide details and share your research!

            But avoid



            • Asking for help, clarification, or responding to other answers.

            • Making statements based on opinion; back them up with references or personal experience.


            Use MathJax to format equations. MathJax reference.


            To learn more, see our tips on writing great answers.




            draft saved


            draft discarded














            StackExchange.ready(
            function () {
            StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2faviation.stackexchange.com%2fquestions%2f62171%2fwhat-causes-the-sudden-spool-up-sound-from-an-f-16-when-enabling-afterburner%23new-answer', 'question_page');
            }
            );

            Post as a guest















            Required, but never shown





















































            Required, but never shown














            Required, but never shown












            Required, but never shown







            Required, but never shown

































            Required, but never shown














            Required, but never shown












            Required, but never shown







            Required, but never shown







            Popular posts from this blog

            “%fieldName is a required field.”, in Magento2 REST API Call for GET Method Type The Next...

            How to change City field to a dropdown in Checkout step Magento 2Magento 2 : How to change UI field(s)...

            變成蝙蝠會怎樣? 參考資料 外部連結 导航菜单Thomas Nagel, "What is it like to be a...