How pilots are able to read of the speed ? It's hard enough for one needle.

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    $\begingroup$ I don't think it did, can you please edit and post a picture of the gauge in question? $\endgroup$
    – GdD
    Oct 7 '21 at 10:39
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    $\begingroup$ Agree with GgD. Did a Google search for "mig-21 speedometer" and went to images... those that are labeled specifically mig-21 have one needle... $\endgroup$
    – CGCampbell
    Oct 7 '21 at 11:04
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    $\begingroup$ I concur, "скорость" -gauges have only one needle. As with many fighters, AoA is of more importance than exact speed. $\endgroup$
    – Jpe61
    Oct 7 '21 at 11:42
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    $\begingroup$ The Q is bad, ,but still good enough to attract a pretty good answer. $\endgroup$
    – fraxinus
    Oct 8 '21 at 12:42
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    $\begingroup$ The answer you accepted is for the MiG-21, why invalidate it by changing the question to the MiG-23? From Review $\endgroup$
    – ymb1
    Oct 15 '21 at 15:09

The normal airspeed indicator (showing indicated airspeed, IAS) only has one needle:


The IAS indicator (US-1600) shows Indicated Air speed up to 1600km/h. It has one needle (2) and one window (1). This window will show “1” when IAS is >1000km/h.

I think you mean the Mach meter, which is combined with a TAS (true airspeed) indicator:


Thick needle 1 shows the M number starting from 0,6M. Thin needle 2 shows the TAS starting from 600km/h (on 0,6 mark). Scale indication follows this logic.

Source: Flight Manual for the DCS (Digital Combat Simulator) MiG-21 by Leatherneck Simulations

  • $\begingroup$ I looked at the answers and by mistake I put the Mig21 21 in the title. I was Mig23 about. $\endgroup$
    – George Geo
    Oct 15 '21 at 14:42
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    $\begingroup$ @GeorgeGeo Sorry, but you cannot fundamentally change the question after it has received an answer. Please ask a new question and please include an image of what you are talking about so we don't have to guess. $\endgroup$
    – Bianfable
    Oct 15 '21 at 15:13

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