Yakovlev Yak-41/Yak-41M/Yak-141 supersonic V/STOL fighter ("Freestyle")

[blackkite]

Checked my copy of Buttler & Gordon Soviet Secret Projects: fighters since 1945. On page 101 is mentioned a pre-Yak-41 study with semi circular side intakes, twin fins and cranked delta wing a la Yak-45. I think this is our culprit.

Regards.

Like this design? Or main jet engine exhaust gas drive fans? Or direct shaft drive fans?

http://www.secretprojects.co.uk/forum/index.php/topic,3668.msg181701.html#msg181701
http://andriuha077.narod.ru/aero/yak141.html

 

[blackkite]

Hi! Yak-141.
https://thelexicans.wordpress.com/2013/09/19/cutaway-thursday-yakovlev-yak-141/
https://www.sas1946.com/main/index.php?topic=40325.0

View: https://www.youtube.com/watch?v=s-lIgK29H1A

 

[F-2]

During the early days of the JAST effort, Lockheed (accompanied by US government officials from the JAST program office) visited the Yakovlev Design Bureau along with several other suppliers of aviation equipment (notably also the Zvezda K-36 ejection seat) to examine the Yakovlev technologies and designs.

Yakovlev was looking for money to keep its VTOL program alive, not having received any orders for a production version of the Yak-141. Lockheed provided a small amount of funding in return for obtaining performance data and limited design data on the Yak-141. US government personnel were allowed to examine the aircraft. However, the 3BSN design was already in place on the X-35 before these visits.

I was thinking of trying to track down the data package. I was wondering if anyone was knowledgeable about Lockheed’s database and someone with access or maybe someone with experience with the FOIA process could advise me who JAST would have been under. From what I understand Yak got permission from the Russian government to sell the data because they had no interest so it doesn’t SOUND classified but I could be wrong.

 

[F-2]

https://ntrs.nasa.gov/citations/19950059269 This might be be a useful paper to track down. One of the authors was the guy who owned the private harrier.

 

[F-2]

https://archive.org/stream/DTIC_ADA323575/DTIC_ADA323575_djvu.txt

Found it! Section 4. Has descriptions of the yak-141 and a surprisingly favorable impression of the Yak-38.

 

[Archibald]

a surprisingly favorable impression of the Yak-38.

Not something seen everyday, for sure.

 

[F-2]

From Soviet VTOL aircraft. I’d recommend it to anyone interested in the subject.

 

[lolek]

Is it the book by M.J. Hirschberg (1997)? The content looks really interesting, however, I'm wondering how you were able to get the preview by books.google, as I cannot find any "readable" version.

 

[paralay]

,

 

[flateric]

Лекция " Як-141" — Video | VK

Watch Лекция " Як-141" 1 hr. 33 min 36 s from 3 August 2022 online in HD for free in the VK catalog without signing up! Views: 3857. Likes: 164.

vk.com

 

[flateric]

...

 

[Hood]

Came across this in Jane's Intelligence Review in a 1991 volume, a two-seat Yak 41 from an article on the Yak 38 and 41 based on a visit to the OKB and discussions about trying to get sales to keep the programme alive.

I presume this drawing was done from an official plan the artist saw, I'd say its Grade 2 quality (though details like the AAMs without room for nose radar rankle slightly).

 

[BBCRF]

View: https://www.youtube.com/watch?v=ODWQlDFBsyA

View: https://www.youtube.com/watch?v=eP38a7xvk5I

 

[overscan (PaulMM)]

Came across this in Jane's Intelligence Review in a 1991 volume, a two-seat Yak 41 from an article on the Yak 38 and 41 based on a visit to the OKB and discussions about trying to get sales to keep the programme alive.

I presume this drawing was done from an official plan the artist saw, I'd say its Grade 2 quality (though details like the AAMs without room for nose radar rankle slightly).

I think the R-27s are IR guided, so it is plausible.

 

[F.L.]

Though details like the AAMs without room for nose radar rankle slightly.

Personally, I'm not shocked, because these are R-27Ts, the infrared-guided variant of the Alamo, and R-3S/K-13M "Atoll", which does not require radar guidance.

 

[lancer21]

Nothing unusual, Su-15UT/UM did carry R-8T/R-98T imitators or possibly real missiles for training (and presumably wartime emergency), and i think same applies to MiG-25PU for instance (R-40T, and i think i've seen R-60s on APU-60-2 launchers on them too).

So this Yak-41UT (which btw looks very cartoonish, the nose especially is very weird, though perhaps not far from Yakovlev as they did created such "beauties " like the Yak-38U, probably the ugliest thing to fly) could carry R-27T imitators or real missiles, plus R-60 or R-73s (again the R-3S like missile might just be generic/cartoonish)

 

[Hood]

Thanks folks for confirming those are IR-guided R-27Ts.

 

[F.L.]

MiG-29UB with R-27T :

 

[lancer21]

That's a great find F.L., i was just thinking i don't recall seeing a MiG-29UB with R-27Ts, but lo and behold!

 

[Justo Miranda]

In the end the Russians were encouraged to build it... Should I claim some kind of copyright?

https://www.secretprojects.co.uk/threads/assymmetric-monoptère.3609/#post-28600

 

[F.L.]

That's a great find F.L., i was just thinking i don't recall seeing a MiG-29UB with R-27Ts, but lo and behold!

Thanks, I'll try to find some more.

 

[paralay]

MiG-29UB with R-27T :

This is the MiG-29UB of the Nizhny Novgorod aviation plant "Sokol". They call it the "Shuttle" there. Now this plane has been replaced by another one

 

[fightingirish]

Former Volunteers of the Air Force Museum in Monino, Russia, are refurbishing the front section of a wooden model (mock-up).
It seems to be the trainer project Yakovlev Yak-41UT.
Source / Link (Russian):

VK.com | VK

vk.com

 

[flateric]

ex-volunteers actually (read comments)

 

[F.L.]

Volunteers of the Air Force Museum in Monino, Russia, are refurbishing the front section of a wooden model (mock-up).
It seems to be the trainer project Yakovlev Yak-41UT.
Source / Link (Russian):

VK.com | VK

vk.com

Great find !!! This is the first time the existence of a Yak-41UT has been unveiled, if I'm not mistaken ?
Until then, the other drawings were Western suppositions.

 

[flateric]

Great find !!! This is the first time the existence of a Yak-41UT has been unveiled, if I'm not mistaken ?
Until then, the other drawings were Western suppositions.

They were not.

https://www.secretprojects.co.uk/threads/yakovlev-yak-141-yak-41m-supersonic-v-stol-fighter-freestyle.19475/post-617318

 

[Erdosain]

https://twitter.com/x/status/2040021598783111444

View: https://x.com/WDequid/status/2040021598783111444

 

[Erdosain]

Actually, more than the Yak-41M, I think it's one of the initial iterations of the design that would lead to the Yak-41/141.

https://twitter.com/x/status/2040120758907662829

View: https://x.com/WDequid/status/2040120758907662829

https://twitter.com/x/status/2040199487159746762

View: https://x.com/WDequid/status/2040199487159746762

https://twitter.com/x/status/2039829796658573510

View: https://x.com/WDequid/status/2039829796658573510

 

[Erdosain]

Actually, no. You are spraying this stuff randomly, even in pre-WW2 topics. Please...don't.

Yes, it was a mistake, I apologize.

I hadn't noticed it was the pre-WW2 aircraft subforum; now I see it was the wrong topic, and the post was moved to the Yak-41M/Yak-43 one.

But where should I post the two aircraft to the right of the Yak-41? The one on the far right would be the Project 201. I don't see that particular aircraft as being related to the Yak-38 or Yak-41.

 

[Geo]

Yes, it was a mistake, I apologize.

I hadn't noticed it was the pre-WW2 aircraft subforum; now I see it was the wrong topic, and the post was moved to the Yak-41M/Yak-43 one.

But where should I post the two aircraft to the right of the Yak-41? The one on the far right would be the Project 201. I don't see that particular aircraft as being related to the Yak-38 or Yak-41.

There’s a bit of confusion around it, but the 201 was one of the proposals within the Yak-41M program.
It looks completely different from all the fan art from the past quarter century.
The design falls into the VTOL category, but it is a complete departure from the 41 line, and both the propulsion system and the lift system remain a major mystery.

 

[Akula_941]

couple more good picture
credit goes to igor113 on livejournel

 

[Grey Havoc]

View: https://www.youtube.com/watch?v=aEYodm-cjHM