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Intake shock cone movement.

1,061 Conjure76  16 days ago

Hello.

I am asking if anyone has previously created a moving shock cone that changes based on air speed using a piston, or at the very least code for it. I am aware that it has been done before, and that I could probably create a similar effect if I were to trying and use my (admittedly rusty) coding skills.

Please and thank you in advance.

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    587 griges

    @Conjure76
    if the cone start at 400kn(example) and fully extends at mach 2 heres FT to put in the piston
    .
    inverselerp(1333.48,400,IAS*1.9438)
    .
    as 1333.48 is mach 2 & 400 is 400 knots, you can change number accordingly
    lmk if it works

    Pinned 16 days ago
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    587 griges

    T

    +1 16 days ago
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    587 griges

    np! glad i could help :D
    no need credit, i didnt do much

    +1 16 days ago
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    1,061 Conjure76

    @griges Thank you. The cone works flawlessly. I shall make sure to credit you in this, and future builds. Once again many thanks for the assistance.

    +1 16 days ago
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    1,061 Conjure76

    @griges fully retracted it just at zero tas, at extended maximum at mach 2. The current solution I am using involves two pistons, one which extends at about 500 miles per hour and one which extends at about 1000 miles per hour, for mach one and two flight respectively. However, even though the first postpone functions well, the second piston tends to clip into the first and cause... minor issues.

    +1 16 days ago
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    587 griges

    thanks, yeah i wasnt knew 😅@Monarchii
    @Conjure76 i may can help
    at what speed the cone fully retract and what speed it fully extended? also specify in m/s or knots

    +1 16 days ago
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    84.1k Monarchii

    @Conjure76 i'm honestly thinking just maybe something like the input getting divided/multiplied by the speed but i have no FT experience with that

    +1 16 days ago
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    1,061 Conjure76

    @Monarchii yes. That is the objective. The aircraft I am creating moves at about mach 2 and some. It has probably been done on this site but I am currently working on creating my own solution. Most likely will be like 10 pistons that move slightly based on total air speed.

    +1 16 days ago
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    84.1k Monarchii

    @griges you ever see a Mig-21? the pointy bit inside the intake? that. when the speed increases, that "intake cone" gets pushed back inside the aircraf

    16 days ago
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    @griges no, it’s something else

    +1 16 days ago
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    I don’t know

    +1 16 days ago
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    587 griges

    do you mean sonic boom?

    16 days ago