Chinese purchase of Su-35

tidalwave

Senior Member
Registered Member
The question is what's holding up the deal from being finalized? The overall message conveyed which is also why the Western media has grabbed on to it is believing Chinese domestic fighters aren't up to par and China desperately need this fighter. When this deal was first put out by Pinkov, it was 36 Su-35s. Now it's been reduced to 24. Why is that if China needs this fighter? What's holding up the deal if China is desperate? If it were all about the engines, that would be more believable, so why don't the Russians just sell the engines if they weren't worried about China getting them with Su-35? The whole point is Russia needs to get the Su-35 sold to a foreign buyer to get the ball rolling. On top of that they're probably going to sell China an export version that is lesser to get others scared into buying the better export version. Just like with the Su-30. And didn't China get a horrible price for Su-30s? Others will need a better Su-35 to beat China's. If this is the sticking point, you can see how China is dragging this along on a fighter they don't need in order to just get the engines.

what's holding so long is couple things. The first one is number of SU35. The second is
China wants SU35 to be modified to able to fire Chinese missiles and China wants to the modification done first before purchase while Russia wanted the purchase done first before modification. Latest I heard, Russia relented on the 2nd demand.
 

siegecrossbow

General
Staff member
Super Moderator
"Confirmed", like how Russians confirmed a contract was signed last year, as did the year before, and the year before that... If Russian confirmation was true back then, there would be no need for confirmation this week. This goes to show there is zero credibility in what the Russian said regarding the Su-35 sales to China.

This time they said that the deal was actually signed.
 

Blitzo

Lieutenant General
Staff member
Super Moderator
Registered Member
Question for everyone here, is engine thrust correlated with the electricity generated by a fighter aircraft (or I suppose, any aircraft), and is that in turn correlated with the power of a radar? Or putting it another way, is engine thrust considered a practical bottleneck for the performance of modern radars?

Because there are obviously a number of fighters with relatively low overall thrust produced by their engines which are still able to mount quite powerful AESA radars, and advancements in radar performance and the retrofit of advanced AESAs with improved performance aboard legacy fighters (such as SABR for legacy F-16s) should be mostly a result of advancements in the radar design rather than improvements in the thrust of the aircraft's powerplant.
 

siegecrossbow

General
Staff member
Super Moderator
Question for everyone here, is engine thrust correlated with the electricity generated by a fighter aircraft (or I suppose, any aircraft), and is that in turn correlated with the power of a radar? Or putting it another way, is engine thrust considered a practical bottleneck for the performance of modern radars?

Because there are obviously a number of fighters with relatively low overall thrust produced by their engines which are still able to mount quite powerful AESA radars, and advancements in radar performance and the retrofit of advanced AESAs with improved performance aboard legacy fighters (such as SABR for legacy F-16s) should be mostly a result of advancements in the radar design rather than improvements in the thrust of the aircraft's powerplant.

Could be efficient radar as well as power-saving measures implemented on other onboard avionics.
 

Blitzo

Lieutenant General
Staff member
Super Moderator
Registered Member
Could be efficient radar as well as power-saving measures implemented on other onboard avionics.

Yes, and that is my question -- basically what actually is the actual power supply for a fighter aircraft's radar, and if the power supply is the aircraft's powerplant, then just how relevant and correlated is the thrust of the powerplant to the radar's peak power, practically speaking?
 

SinoSoldier

Colonel
Do you understand that in order to generate an electromagnetic wave (radar impulse) you need to generate electricity? any radar in order to have a long range detection it needs to use the square root law, to do that the power source is developed by the engine, if China has already such engine why buy 2 billion worth just to buy 117s?

In my opinion no Chinese radar even AESA can have such range without the proper power source aka engine, Su-35 has 400 km detection range because the engines develop enough electricity to do it
DfRCgia.jpg

J-11D and J-16 use 140 kN engines; nothing suggests that a mere 2 kN difference will lead to an equal discrepancy, if at all, in radar power output.
 

b787

Captain
Supercruising ability does not linearly translate to a faster top speed.
do you understand what means super cruise? it means longer time at cruise speed flying at supersonic speeds. an aircraft with super cruising engines does not use afterburner.

using afterburner a fighter spends most of its fuel in shorter time reducing its max speed flight.

Su-35 has that advantage over J-11
 

b787

Captain
J-11D and J-16 use 140 kN engines; nothing suggests that a mere 2 kN difference will lead to an equal discrepancy, if at all, in radar power output.
nothing suggest to you, but physics do not lie, higher wattage means the oscillator generates more power thus it detection range is longer, thermal losses reduce the radar wattage

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