PRC VCE and low bypass engines (fighters, tactical jets, UAVs, others)

[Alfa_Particle]

Something I came across:

As written, in full afterburner, this engine produces an exhaust flow around 2000 K at ~M1.7 flow velocity. This is proper 5th generation level figures afaik?

Comparing this to the 'alleged' WS-19:


They are remarkably similar. Uncannily, even

Would be great if someone can find the source of the first image. I believe it's from the 36th vol. of 燃气涡轮试验与研究.

 

[Alfa_Particle]

Something I came across:
View attachment 172009
As written, in full afterburner, this engine produces an exhaust flow around 2000 K at ~M1.7 flow velocity. This is proper 5th generation level figures afaik?

Comparing this to the 'alleged' WS-19:
View attachment 172010

They are remarkably similar. Uncannily, even

Would be great if someone can find the source of the first image. I believe it's from the 36th vol. of 燃气涡轮试验与研究.

I've given this more of a think and I just can't shake the doubt that an exhaust flow velocity of M1.7 seems oddly low (by a lot) for full AB. I would be convinced if it's mil power but full AB?

Just putting my thoughts here.

 

[latenlazy]

I've given this more of a think and I just can't shake the doubt that an exhaust flow velocity of M1.7 seems oddly low (by a lot) for full AB. I would be convinced if it's mil power but full AB?

Just putting my thoughts here.

Probably depends on the con-di nozzle setting.

 

[Nx4eu]

I've given this more of a think and I just can't shake the doubt that an exhaust flow velocity of M1.7 seems oddly low (by a lot) for full AB. I would be convinced if it's mil power but full AB?

Just putting my thoughts here.

Isn't a exhaust temperature of 2000K also weirdly low for full AB?

 

[Alfa_Particle]

Isn't a exhaust temperature of 2000K also weirdly low for full AB?

Nope, that's about right. The F119 afaik also is in this range and it lines up with the table:

Probably depends on the con-di nozzle setting.

That might be it, yeah.

 

[Nx4eu]

Nope, that's about right. The F119 afaik also is in this range and it lines up with the table:

Lining up with this table means it also lines up with TIT being <2000K ie 1800-1900K. I know you/some people hate focusing on TIT but this would mean that some technologies in WS-19 could be relatively conservative versus other engines, and even you can’t deny the benefits Higher TIT brings to an engine.

 

[Alfa_Particle]

Lining up with this table means it also lines up with TIT being <2000K ie 1800-1900K. I know you/some people hate focusing on TIT but this would mean that some technologies in WS-19 could be relatively conservative versus other engines, and even you can’t deny the benefits Higher TIT brings to an engine.

Nah, there's other likelier interpretations. The table likely outlines parameters at sea level and M0 while the "1950-2100K" mentioned just before the table is the actual design point achieved at higher speeds due to ram rise. Maybe @latenlazy can weigh in on this?

 

[sunnymaxi]

Nah, there's other likelier interpretations. The table likely outlines parameters at sea level and M0 while the "1950-2100K" mentioned just before the table is the actual design point achieved at higher speeds due to ram rise. Maybe @latenlazy can weigh in on this?

if a remember correctly, the above table is 10 years old.

 

[Alfa_Particle]

if a remember correctly, the above table is 10 years old.

15+, actually

 

[sunnymaxi]

15+, actually

its from 2011 year.. got it

i was about to edit my post. lool