Chinese Engine Development

Kejora · Mar 31, 2023

latenlazy said:
That’s not what’s happening in this story. The F135’s propulsion is working just fine for the F-35. The issue here is the F-35’s other subsystems are generating more heat than intended in their design and the amount of bleed air the engine is designed to divert for cooling purposes is insufficient, so they’ve had to run the engine harder just to generate more bleed air to sufficiently cool the rest of the plane.

This is more a problem specific to the F-35’s design than to all future fighter designs in general. If anything, being a larger twin engined fighter would have likely mitigated these kinds of problems by spacing out hot components more to provide more volume for the heat to dissipate, and by having two engines to provide bleed air for additional cooling rather than one.

My point still stand that F-35 is too bloated with all the extra capabilities that supposed to go to heavy twin engined fighter.

gelgoog · Mar 31, 2023

F-35 engine is 125/191kN while F-15 engine is 65/106kN. So basically a single F-35 engine has roughly the same power as two F-15 engines.

latenlazy · Mar 31, 2023

gelgoog said:
F-35 engine is 125/191kN while F-15 engine is 65/106kN. So basically a single F-35 engine has roughly the same power as two F-15 engines.

Er. F-15s should now be using the F100-220 which has 80 kN dry and 130 kN wet.

sequ · Mar 31, 2023

zszczhyx said:
Real or fake?

https://twitter.com/i/web/status/1641280742582804483

So it is called WS-10B

ZeEa5KPul · Mar 31, 2023

siegecrossbow said:
According to Orca WS-19 is progressing so smoothly that J-35 might not enter service with an interim engine at all. WS-13/WS-21 engineers are miffed.

They can commiserate with the steam catapult engineers.

Phead128 · Mar 31, 2023

So with WS-15 in LRIP, is the following statement a fair characterization?

"China has mastered top tier, full-aspect, jet engine manufacturing and technology, equaling American F119 class engine, exceeding Russian idz 30 in development and production? " Is that a fair and accurate representation?

BoraTas · Mar 31, 2023

tankphobia said:
With engine capabilities up across the board, would the next PLA fighter after J35 move back toward single engine?

I don't think there are any good reasons for a single-engine non-budget fighter anymore. Modern fighters are big because of sensor size, payload, and range requirements. And everything about them is so expensive that a second engine is almost trivial in final costs. The F-35 has a single engine because of the existence of the F-35B and political reasons. The media was scapegoating double engine configuration a lot back then for F-15 and F-22 prices. The US congress mandated that the F-35 was going to be a single engine fighter. It wasn't a USAF decision.

hellodarknez · Mar 31, 2023

What's WS-15's Thrust-to-weight ratio? Is it something like 10? Or too early to tell?

vincent · Mar 31, 2023

hellodarknez said:
What's WS-15's Thrust-to-weight ratio? Is it something like 10? Or too early to tell?

siegecrossbow · Mar 31, 2023

I just realized one thing.

WS-10 was supposed to be J-10’s target engine. J-10 was first inducted in 2004 but WS-10 equipped J-10C didn’t enter service until 2020. It took 16 years for the J-10 to receive its target engine.

J-20, on the other hand, entered service in 2017. Looks like J-20B with WS-15 will be ready by 2025. This would mean that it took half the amount of time for the J-20 to receive its target engine than its predecessor.

Chinese Engine Development

Kejora

Junior Member

gelgoog

Lieutenant General

latenlazy

Brigadier

sequ

Major

ZeEa5KPul

Colonel

Phead128

Captain

BoraTas

Captain

hellodarknez

New Member

vincent

Grumpy Old Man

siegecrossbow

General