I think it is because fighters use odd numbers and other aircraft use even…
But then again, the MiG-28 is even… 
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Helos are all evens …
Mi24
Mi8
mi28
Ka50
Ka52…
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You forgot one, an important one.
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TWENTYONE!!!
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MiG Bureau infact had an even numbered aircraft, the MiG-8, but it was a prototype.
About the line, between Mi23 and 29, we still have rhe 25 and 27 (a ground attack version of 23). My dream is to have a MiG-31 with multicrew, BUT because MiG31 is a strategic weapon and not tactical as all other fighters, MiG-31 is highly classified ad not even in 20 or 30 years we can have detailed infos about it.
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Man i would really dig a -27 . That idiot gun :biggrin:
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BTW, to give you a real answer instead of just crap?
I’m not entirely sure if there IS rhyme or reason to it, that’s always a possibility when dealing with Soviet systems.
The popular answer is that fighters (fighter-bombers and ground attack aircraft included) got odd numbered designations while bombers got even.
But, that can’t be correct or at least consistent:
Yak-28 - Used as an interceptor as well as a light bomber.
Yak-38 - Definitely a fighter-bomber. And a mess.
Tu-95 - Kiiiind of the big one.
So, I can’t say with any certainty.
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I just wondered if there was a reason behind it … so what you are saying is basically it’s just Russian … 
Tu-22
Makes sense to me.
No rule is without exception.
This was originally known as the Tu-20
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That I did not know!
Multiple in this case.
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Exceptions then… 
Seems to be valid for MiGs though.
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OkB Suchoi on the other hand … sheer madness!
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from stormbirds.blog
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