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Posted

Today i read the article which sais: "In 80's of 20th century Russian Air Forces (WWS) stated desire to have a special combat version of two-seater Su-27UB which could become a long-range interceptor called Su-27PU. When this aircraft had not been accapted by WWS Suchoi offered it again under the name of Su-30...".

Other publication sais that "Su-27PU is in fact Su-30..."

 

Why PU version had not been accepted? Because of financial cuts in budget in the dusk of USSR structure (7 models were built - 5 are still in duty)? Because of limited capabilities of its radar? How much PU was different from Su-30?

Posted
Today i read the article which sais: "In 80's of 20th century Russian Air Forces (WWS) stated desire to have a special combat version of two-seater Su-27UB which could become a long-range interceptor called Su-27PU. When this aircraft had not been accapted by WWS Suchoi offered it again under the name of Su-30...".

Other publication sais that "Su-27PU is in fact Su-30..."

 

Why PU version had not been accepted? Because of financial cuts in budget in the dusk of USSR structure

 

Yes apparently.

 

(7 models were built - 5 are still in duty)?

 

AFAIK none of these original Su-30s are still in "in duty" in Russia. As I understand it, the handful or so aircraft were flying as evaluation airframes and reclaimed by Sukhoi when it became clear that the Russian airforce wasn't interested/couldn't afford inducting the type into actual service at the time. I heard that these airframes were later re-used as basis for the prototypes of the new advanced export versions(Su-30MK).

 

The Su-30 was exported as the "Su-30K"(downgraded export version) though. India is still operating some of these, which I believe are to be re-build to -MKI standard over time.

 

Because of limited capabilities of its radar?

 

Well the Su-30 has the same NIIP-N001 radar as the Su-27, but a more capable EOS system also fitted to the Su-33.

 

However, the Su-30 supposedly had extended data-linking capability over the Su-27 and the idea behind it was for it to either link up into a network with other Su-30s and this way cover a large area(similar to the operation of the MiG-31) or to act as mission controller or "mini AWACS" for a flight of single seat Su-27s. Apparently the Su-30K export version didn't have these extra capabilities and as such was little more than an Su-27UB with a better EOS and added inflight-refueling capability.

 

How much PU was different from Su-30?

 

No difference - same aircraft, new name. Just around the time the Su-27PU came about, Sukhoi decided to rename new variants of the Su-27 with the -3X suffixes....supposedly in order to help distinguish them from the base versions(Su-27 and Su-27UB):

 

Su-27PU -> Su-30

Su-27K -> Su-33

Su-27M -> Su-35

Su-27IB -> Su-34

 

So as it says in your initial quote: "Su-27PU is in fact Su-30" :)

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JJ

Posted
Today i read the article which sais: "In 80's of 20th century Russian Air Forces (WWS) stated desire to have a special combat version of two-seater Su-27UB which could become a long-range interceptor called Su-27PU. When this aircraft had not been accapted by WWS Suchoi offered it again under the name of Su-30...".

Other publication sais that "Su-27PU is in fact Su-30..."

 

Why PU version had not been accepted? Because of financial cuts in budget in the dusk of USSR structure (7 models were built - 5 are still in duty)? Because of limited capabilities of its radar? How much PU was different from Su-30?

 

 

Another cool feature of the Su-27UB is a couple of internal R-73’s

@Alfa,

Can you confirm this?

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Posted
Another cool feature of the Su-27UB is a couple of internal R-73’s

 

@Alfa,

Can you confirm this?

 

Do you mean Su-27PU?(Su-27UB is just the two-seat combat-trainer version).

 

No there are no internal weapons bays :) . The Su-27PU/Su-30 is really just an Su-27UB modified for interceptor duties - among the modifications are:

 

* Retractable IFR probe

* Rear seat with separate HDD for the radar operator

* Updated(more capable) EOS as compared with the system of the Su-27

* Extended data-linking capability (as described earlier).

 

Bear in mind that we are talking about the very first Su-30 version.

 

Later Su-30 multirole incarnations are very different from this - and in fact very different from each other. The advanced multirole variant(Su-30MK) is marketed solely as an export item, which in turn means that the individual customer can pick and choose between varies features and how they want the aircraft configured.

 

- JJ.

JJ

Posted
the UB....can it internly carry it!?

Don't realy think so..? Its a trainer?:huh:

 

Yes the Su-27UB is really just a two-seat version of the Su-27 for training purposes - it does retain all combat capabilities of the single seat version though.

JJ

Posted
Do you mean Su-27PU?(Su-27UB is just the two-seat combat-trainer version).

 

No there are no internal weapons bays :) . The Su-27PU/Su-30 is really just an Su-27UB modified for interceptor duties - among the modifications are:

 

* Retractable IFR probe

* Rear seat with separate HDD for the radar operator

* Updated(more capable) EOS as compared with the system of the Su-27

* Extended data-linking capability (as described earlier).

 

Bear in mind that we are talking about the very first Su-30 version.

 

Later Su-30 multirole incarnations are very different from this - and in fact very different from each other. The advanced multirole variant(Su-30MK) is marketed solely as an export item, which in turn means that the individual customer can pick and choose between varies features and how they want the aircraft configured.

 

- JJ.

 

I can’t remember were I heard it!

But if I recall correct a Su-35/37 or some experimental su-27xx/30 was having 2 internal r-73’s.

(Maybe it was a very old Free Falcon version :D)

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