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Chinese turboprop Yak-18 ???

boxkite

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I believe it was in the Czech aviation magazine L+K where I've seen a tiny picture of a turboprop derivative of the Yak-18, realized in China, probably in the 1970s. Does anybody know more about this aircraft? A picture would be nice, of course.

Matej? Deino? Rousseau?
 
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This is probably the CJ-6 (of course derivated from the Yak-18), it is still used by the PLAAF for basic pilot training.
 

boxkite

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The CJ-6 is fitted with a piston engine ... ;)
 
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Turboprop ? Maybe the CJ-6B project using a new engine, try to find infos about the HS-6D engine (what kind of engine it is).
 

Matej

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It will really help to say at least the era or year, when you saw it. I will take a look tomorrow, but I have complete issues only from 1999.

CJ-6: http://orbat.com/site/andreas/china.html#_List
HS-6D is also piston: http://orbat.com/site/andreas/parschgehrspahl.html#_Engines
 

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boxkite said:
I believe it was in the Czech aviation magazine L+K where I've seen a tiny picture of a turboprop derivative of the Yak-18, realized in China, probably in the 1970s. Does anybody know more about this aircraft? A picture would be nice, of course.

Matej? Deino? Rousseau?

Hmmm .... ??? Sorry; never heard about that ! The latest Info I got about a Yak-18 / CJ-6 replacement were these projects and only the last one is a turboprop:

The first looks very much like a "development" of the L-29 "Delfin" (just my opinion), but sadly I don't know any more about other than these two illustrations. Maybe it's an improved indigenious version of the L-29 based on the around 40 aircraft, which were delivered to PLAAF by 1967.

Can anyone at least translate what's written under the side-drawing !!??


The next is only a very recent "concept" of a planned successor based on the Yak-52 currently under development at Hongdu as the CJ-X "Baby Eagle" !


.... but nothing from around the 1970s !

Cheers, Deino :)
 

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boxkite

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In that issues that I have I found nothing, sorry. However "nearly L-29" :) is interesting.

Matej, I believe the picture was published in a L+K in the late 1970s. I'm still looking for a track and keep you informed.

Deino, the caption below CJ-7-prototype.jpg image is simply 'model of the Chujiao (i. e. basic trainer) 7' - nothing more (I've asked the teacher for Chinese language here in town).
 
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The canopy of the CJ-7 is very similar to the Embraer 312.

So I'll be very curious to see features of this aircraft (avionics, systems, perfs, etc...)
 

Deino

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boxkite said:
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Deino, the caption below CJ-7-prototype.jpg image is simply 'model of the Chujiao (i. e. basic trainer) 7' - nothing more (I've asked the teacher for Chinese language here in town).

Thanks ... I had the hope that at least the mystery of the designer (Nanchang/Hongdu, ???) was solved !

Thanks a lot !

Deino :)
 

boxkite

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It was my fault. I thought, if there is no reference to an turboprop Yak-18 in the Yakovlev OKB history books, such a conversion could only be done by Chinese engineers (remember the original piston-engined Tu-4 and Be-6 later fitted with turboprop engines). But I was on the wrong track. The turboprop Yak-18 was a product of the OKB Yakovlev by itself! A good friend was able to name the source (Matej, my speculation was very close on it): A picture was in “Letectvi + Kosmonautika” # 15/1977 (pg 585), but unfortunately, my collection of this Czechoslovakian magazine starts with 1982. Can anybody from the Czech Republik or Slovakia help to post a scan of the picture?

In spite of my mistake, it’s very interesting, that the Yakovlev specialist(s) at Aerofax seems to be ignorant on this engine upgrade …
 

boxkite

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Correction: The „Yak-18PM turboprop conversion“ is mentioned in „OKB Yakovlev. A History of the Design Bureau and its Aircraft” after all. At page 273 is a short description – but without any illustration.

Sorry for the chaos I made, but I’m still looking for the L+K picture, probably the only pictorial reference for this conversion.
 

Deino

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Deino said:
The first looks very much like a "development" of the L-29 "Delfin" (just my opinion), but sadly I don't know any more about other than these two illustrations. Maybe it's an improved indigenious version of the L-29 based on the around 40 aircraft, which were delivered to PLAAF by 1967.

Cheers, Deino :)

Here's something more on Chinese trainer developments ... and also from the CJ-7 (maybe now we can discover from what manufactor)

http://www.afwing.com/intro/platrainer/1.htm .... to page 6 !

Cheers, Deino
 

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Matej

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Unfortunatelly nobody from people around me (some of them are authors of articles in L+K!!) have so old L+K issues. I wrote to the redaction, but my experience is, that they didint answer very often. If they do, I will inform you.
 

boxkite

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It lasted a little bit longer, but I have discovered 23 years old negatives of the L+K (long before copier became a usual instrument of our daily routine). The picture of the turboprop Yak-18 is of crude quality (seems to be heavy retouched), but it's the only one, I've ever seen. It was fitted by the OKB itself with a TVD-10 (no Chinese participation ;-).

If anybody gets a better picture of this sole turboprop conversion of a Yak-18, please let me know. Thanks!
 

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