J20 Stealth Fighter

[MiG-29SMT]

unimpressive flight display

 

[skywatcher]

4K

 

[MiG-29SMT]

 

[MiG-29SMT]

While the chinese forum lore troll were saying J-20 was a Mach 2.5 mach, science triumphed, DSI have a max mach 2 speed limit with an ideal Mach 1.6, (J-20 barely will fly near Mach 2).

It also showed the 20.1 meters long fantasy was pure fantasy

this picture showed it was as big as Su-27 but chinese forum lore said it was smaller

 

[MiG-29SMT]

 

[MiG-29SMT]

 

[Maharaj samudragupt]

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Iam smitten by the beauty of this jet, oh the long body it has.

 

[lixun]

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While the chinese forum lore troll were saying J-20 was a Mach 2.5 mach, science triumphed, DSI have a max mach 2 speed limit with an ideal Mach 1.6, (J-20 barely will fly near Mach 2).

It also showed the 20.1 meters long fantasy was pure fantasy

View attachment 112375

this picture showed it was as big as Su-27 but chinese forum lore said it was smaller

There is a lot of discussion about the maximum speed of J20,
Some people think this is a practical Mach number, not a maximum Mach number.
Some people think that this is the data of the early 2001 unit.
And this data does not indicate what state it is, what height data,
There are many official data that are different
So the credibility is not high,
Also, the length is obviously the J20 data from the early use of the airspeed tube,
I remember someone analyzed
There are many different data for the maximum speed of the F22 air show

 

[Maharaj samudragupt]

There is a lot of discussion about the maximum speed of J20,
Some people think this is a practical Mach number, not a maximum Mach number.
Some people think that this is the data of the early 2001 unit.
And this data does not indicate what state it is, what height data,
There are many official data that are different
So the credibility is not high,
Also, the length is obviously the J20 data from the early use of the airspeed tube,
I remember someone analyzed
There are many different data for the maximum speed of the F22 air show

Welcome back comrade.

 

[Maharaj samudragupt]

There is a lot of discussion about the maximum speed of J20,
Some people think this is a practical Mach number, not a maximum Mach number.
Some people think that this is the data of the early 2001 unit.
And this data does not indicate what state it is, what height data,
There are many official data that are different
So the credibility is not high,
Also, the length is obviously the J20 data from the early use of the airspeed tube,
I remember someone analyzed
There are many different data for the maximum speed of the F22 air show

Welcome back

 

[J20!]

View attachment 112374


While the chinese forum lore troll were saying J-20 was a Mach 2.5 mach, science triumphed, DSI have a max mach 2 speed limit with an ideal Mach 1.6, (J-20 barely will fly near Mach 2).

It also showed the 20.1 meters long fantasy was pure fantasy

View attachment 112375

this picture showed it was as big as Su-27 but chinese forum lore said it was smaller

Didn't you often post that J20 couldn't reach Mach 2.0 and was limited to M1.8 or M1.6?

It seems you were wrong. Why are you pretending you were right?

And claims that J20 was a "fighter bomber" bigger than a flanker were proved wrong long ago. Those stats and pic prove J20 is slightly shorter than the SU30 airframe at 21.2m VS 21.9m respectively.

 

[J20!]

You added a lot of Fantasy.

J-20 is not a fast design why?

well like Rafale has fixed intakes.

Pressure recovery for the DSI is around 89% by around Mach 1.7

basically all DSI intakes top up at mach 1.6. JF-17 is not fast and same applies to J-31 or F-35.
These aircraft top up at mach 1.7.

This you bro?

 

[MiG-29SMT]

Didn't you often post that J20 couldn't reach Mach 2.0 and was limited to M1.8 or M1.6?

It seems you were wrong. Why are you pretending you were right?

And claims that J20 was a "fighter bomber" bigger than a flanker were proved wrong long ago. Those stats and pic prove J20 is slightly shorter than the SU30 airframe at 21.2m VS 21.9m respectively.

Do you understand what is design number for an air intake? ideally DSI have a Mach 1.6 design number after that the aircraft can reach Mach 1.8 or even Mach 2 but the risks are damage the engine or increase fuel comsumption.

Of course you do not know, most aircraft can fly faster than what you think, MiG-25s were flown at Mach 3.2 but they damaged the engines so they were capped at Mach 2.8.

F-16 theoretically can reach Mach 2+ speeds but the engine can also be damage and the aircraft is basically a 0.9 Mach aircraft with very short incursions into Mach 1.8 and very rarely Mach 2.

So is J-20 it is a Mach 1.6 aircraft but it can be flown into Mach 1.8 or even Mach 2 what you do not see is fuel will be pumped so fast its range will be reduced considerably and the engines will be operating with lots of turbulance forcing more fuel to compensate for air flow thurst

 

[MiG-29SMT]

There is a lot of discussion about the maximum speed of J20,
Some people think this is a practical Mach number, not a maximum Mach number.
Some people think that this is the data of the early 2001 unit.
And this data does not indicate what state it is, what height data,
There are many official data that are different
So the credibility is not high,
Also, the length is obviously the J20 data from the early use of the airspeed tube,
I remember someone analyzed
There are many different data for the maximum speed of the F22 air show

that is for ignorants read any paper on DSI intakes and the ideal design number is Mach 1.6.

Can they go faster? of course a F-14 can fly at Mach 2.7 but the damages and intake air mass conditions are not ideal.

Most aircraft are capped at an ideal Max speed, F-16 is a Mach 2 aircraft, it can fly a bit faster but it may damage the engine.

MiG-23 was flown at Mach 2.6 but ideally it has a Max Mach 2.35 speed.

J-20 is a Mach 1.6 aircraft with very short and rare incursions at Mach 2.

 

[MiG-29SMT]

Iam smitten by the beauty of this jet, oh the long body it has.

Beauty is in the eye of the beholder and as a machine has its own beauty, as a weapon is different, its political mission is evil, but as a machine well it is interesting but personally i do not like it as an aerodynamic vehicle.

 

[MiG-29SMT]

 

[MiG-29SMT]

 

[MiG-29SMT]

A relatively nice view for me of J-20

but I find nicer the Su-27 or Su-35

 

[J20!]

that is for ignorants read any paper on DSI intakes and the ideal design number is Mach 1.6.

Can they go faster? of course a F-14 can fly at Mach 2.7 but the damages and intake air mass conditions are not ideal.

Most aircraft are capped at an ideal Max speed, F-16 is a Mach 2 aircraft, it can fly a bit faster but it may damage the engine.

MiG-23 was flown at Mach 2.6 but ideally it has a Max Mach 2.35 speed.

J-20 is a Mach 1.6 aircraft with very short and rare incursions at Mach 2.

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Weak excuses. Just admit you were wrong. You posted: "These aircraft all top up at Mach 1.7". Reffering to J20, FC31, JF17 and F35.

Now you're claiming a "design speed" of m1. 6 and a top speed of m2?

You specifically said J20 COULDN'T reach m2.

How can 4 different designs with different aerodynamic layouts, T/W ratios and max thrust have the exact same max speed just because they all use dsi's? And all 4 DSI intakes are unique in their DSI bump shape and bleeding layout.

Early in J20s prototyping phase we saw CAC iteratively change the J20s DSI intake layout, obviously to improve performance in drag, fuel consumption and max speed. But a certain armchair general/ "aeronautics design expert" here want us to believe that all Dsi's are the same.

DSIs are very attractive to many design houses building 5th gens because of their low weight, LO benefits, simplicity and effeciency in typical flight regimes.

Hasn't the AMCA moved to Dsis? Did you know there were indications that the YF23 team at Northrop were to transition to Dsis on a production black widow had they won the competition? YF23 is a high and fast air dominance platform. You think they'd do that if DSIs limited max speed at altitude to "Mach 1.6"?

Even Lockheed original dsi patent doesn't claim a "Mach 1.6 design speed limit". We all know DSIs are most effecient within a certain flight envelope. Most experts quote 1.6 to 2.0 Mach. You claimed J20 was a Mach 1.6 or 1.7 fighter to denigrate its prospects as an air superiority platform. Now youre twisting and turning to pretend you weren't wrong.

Just be humble and admit you were wrong.

 

[MiG-29SMT]

Weak excuses. Just admit you were wrong. You posted: "These aircraft all top up at Mach 1.7". Reffering to J20, FC31, JF17 and F35.

Now you're claiming a "design speed" of m1. 6 and a top speed of m2?

You specifically said J20 COULDN'T reach m2.

How can 4 different designs with different aerodynamic layouts, T/W ratios and max thrust have the exact same max speed just because they all use dsi's? And all 4 DSI intakes are unique in their DSI bump shape and bleeding layout.

Early in J20s prototyping phase we saw CAC iteratively change the J20s DSI intake layout, obviously to improve performance in drag, fuel consumption and max speed. But a certain armchair general/ "aeronautics design expert" here want us to believe that all Dsi's are the same.

DSIs are very attractive to many design houses building 5th gens because of their low weight, LO benefits, simplicity and effeciency in typical flight regimes.

Hasn't the AMCA moved to Dsis? Did you know there were indications that the YF23 team at Northrop were to transition to Dsis on a production black widow had they won the competition? YF23 is a high and fast air dominance platform. You think they'd do that if DSIs limited max speed at altitude to "Mach 1.6"?

Even Lockheed original dsi patent doesn't claim a "Mach 1.6 design speed limit". We all know DSIs are most effecient within a certain flight envelope. Most experts quote 1.6 to 2.0 Mach. You claimed J20 was a Mach 1.6 or 1.7 fighter to denigrate its prospects as an air superiority platform. Now youre twisting and turning to pretend you weren't wrong.

Just be humble and admit you were wrong.

you are a fool.

Design number of an intake means that is the best pressure recovery it will get, after that pressure recovery drops, as it drops the need for more fuel and afterburner increases since mass air flow reduces thrust, can an engine be used way bellow the ideal pressure recovery, yes, but the engine failure risk still remains, so I will put it mildly the Mach 2 you read means a very brief and short incursion, basically is propaganda J-20 is not a aircraft that flies at Mach or cruises at Mach 2, the efficiency of the intake at Mach 1.4 is near 1, but at Mach 2 can be as low as .7

Total pressure recovery is the ratio of the average total pressure at the exit of the inlet to the free stream total pressure. A higher pressure recovery indicates a better performing inlet. The maximum possible value of recovery is 1.0.

Inlet Performance Model - Glenn Research Center | NASA

of course you are a typical chinese forumlore poster