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What is the very first fighter jet that pioneers the twin engine and twin vertical stabilizers over the engine just before the exhaust (like the F-14, F-15, F-22, Su-35, etc)?

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  • $\begingroup$ as from the current answers can be seen, you might want to specify whether you are looking for also prototypes or just fighters that entered service? $\endgroup$
    – Jpe61
    Sep 30, 2019 at 6:20
  • $\begingroup$ Both are okay, but don't forget to clarify which one was a prototype or service aircrafts. $\endgroup$
    – Yudhi G.
    Sep 30, 2019 at 7:54
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    $\begingroup$ The Heinkel He-280 was a twin-engine twin-tail jet fighter, but like most early jets had podded engines $\endgroup$
    – MSalters
    Sep 30, 2019 at 17:56
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    $\begingroup$ Not a fighter, but twin-engine and tails-over-engine: SNCAC 1071, French/1948. $\endgroup$
    – MSalters
    Sep 30, 2019 at 18:03

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One of the first was probably the unconventional XP-79. https://en.wikipedia.org/wiki/Northrop_XP-79

It never entered service of course, but does meet your criteria.

Something that kinda meets your criteria would be the F7U Cutlass. Twin tails and twin rear mounted engines though the tails were in separate tail booms outboard of the engines, a similar configuration to that of the DH Sea Vixen and Venom of roughly the same period.

These did enter service.

Then there is the XF-90 which has twin rear mounted engines with a single vertical stabiliser over them. The Soviet La250 and Tu28 had similar configuration but came later.

This also did not enter service.

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Probably the MiG-25. Near as I know, it was the first to use the ‘four poster’ layout.

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    $\begingroup$ This does not provide an answer to the question. To critique or request clarification from an author, leave a comment below their post. - From Review $\endgroup$
    – Vikki
    Sep 30, 2019 at 3:39
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    $\begingroup$ @Sean Of course it answers the question. It might not be a good answer without listing any source for this, but it still is an answer. $\endgroup$
    – Bianfable
    Sep 30, 2019 at 6:28
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    $\begingroup$ Downvoted because of the probably. Since you probably meant to revise this later, I look forward to upvoting once this is a solid answer. Probably. $\endgroup$ Sep 30, 2019 at 7:34
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Prototype only: the YF-12A. This was an A-12 derived fighter plane. The A-12 is better known for its other derivative, the SR-71 Blackbird. Both the A-12 and the SR-71 were intended for reconnaissance tasks, but the YF-12 would have been a fighter.

With a first flight in 1963, it beats the Mig-25 by a year.

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Possibly might be the WW-2 era Me-262? I believe the prototype had twin tails.

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    $\begingroup$ This does not provide an answer to the question. To critique or request clarification from an author, leave a comment below their post. - From Review $\endgroup$
    – Vikki
    Sep 30, 2019 at 3:39
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    $\begingroup$ @Sean I don't think you're using the "not an answer"-review feature quite right. It's meant for posts that don't come close to being an answer, not for posts that do not meet your criteria for being a good answer. For that you can leave a normal comment, or even downvote. $\endgroup$
    – Sanchises
    Sep 30, 2019 at 6:24
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    $\begingroup$ I would agree that this is more of a comment than an answer. $\endgroup$ Sep 30, 2019 at 7:30
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    $\begingroup$ @Sean it is an answer. It's not the correct answer, but it is an answer. $\endgroup$
    – jwenting
    Sep 30, 2019 at 8:30

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