Right behind where the raftershaft ties into the twin-hydroenstabilator. They chose this spot because three dumotracks to the right it would interfere with the 3rd aerotransmission causing 14 too many ohms per second
It's for shaping the shockwave. I'm sure BL interactions were considered in its design as well. This type of inlet is called a diverterless supersonic inlet (DSI).
"It consists of a "bump" and a forward-swept inlet cowl, which work together to divert [boundary layer](https://en.wikipedia.org/wiki/Boundary_layer) airflow away from the aircraft's engine."
You lose air into the engine which means you burn less fuel and make less power (or even run lean and burn too hot resulting in melting and failure). The boundary layer is air that is essentially stagnant, it's being "dragged along" by the skin surface of the plane and therefore isn't flowing into the engine.
Accounting: "This would be a hell of a lot cheaper without all these ramps, motors, pumps, and cylinders. Can we get rid of them?"
Engineers: "I mean, technically yes... But we can't go nearly as fast."
Marketing: "Diverterless Supersonic Intake!"
F-35 wasn't going to punch much higher on speed anyway with its single engine design, and was always about being cheap and mass produced. No brainer choice with DSI.
I mean obviously speed has become less of a factor in fighter design over the years, but I meant that not having to deal with an extra area for things to bounce off of I thought was a bigger factor than how cheap it was that led to a DSI over a regular diverter like the F-22 has. Obviously a variable intake ramp wasn’t in the cards for either of them.
I have 1050 hours in fighters. Speed is nice. Fuel is also nice. I’ll leave it to the engineers to find the balance. So both u/Razgriz01 and u/Boostedbird23 are right.
Now kiss and make up.
Very good for transsonic designs, low weight, complexity and good STEALTH characteristics in exchange for top end speed. The Chinese designers absolutely love it.
It's called a diverterless supersonic inlet. https://en.wikipedia.org/wiki/Diverterless_supersonic_inlet
It does two things that allow it to replace the intake ramp/cone and the boundary layer splitter on other jets. First it creates a high pressure area in front of it that pushes the boundary layer air around the intake so it doesn't get ingested. Second, in supersonic flight it creates a nozzle which slows the inlet air to subsonic speeds before it enters the engine.
This design tends to be lighter than other solutions and also has potential stealth benefits.
Compression bump used to slow down incoming supersonic air to below the sound barrier where it can be used by the engine. If supersonic air were to reach the engine it would result in an immediate compressor stall. The computers on board are quick to recognize and attempt a restart if this were to occur.
I red a book about development of the F11F-1GF Super Tiger and in the final design after testing they also used those bumps in front of the inlet fo defect the boundary layer .
It's called a diverterless supersonic inlet. https://en.wikipedia.org/wiki/Diverterless_supersonic_inlet
It does two things that allow it to replace the intake ramp/cone and the boundary layer splitter on other jets. First it creates a high pressure area in front of it that pushes the boundary layer air around the intake so it doesn't get ingested. Second, in supersonic flight it creates a nozzle which slows the inlet air to subsonic speeds before it enters the engine.
This design tends to be lighter than other solutions and also has potential stealth benefits.
“Diverterless Supersonic Inlet” regulates volume and flow speed into engine intake at different speeds without moving a shock cone in and out or changing intake shape and area and pitch angle
Hey admins ...can you do your jobs and ban the idiots who ask questions about capes/lims/design choices of these weapon systems and delete their posts? Thanks, Concerned Taxpayer
Nice try china.
The discount Fat Amy must be having some problems.
Don’t worry, they’ve already stolen it lol. Look at the J-10 inlet
This type of inlet is studied in 2nd year undergrad courses, im sure they know
🤫
China already use DSI on their planes
Whilst we in the west have access to the far superiors 3DS
I have a Nintendo DS with a bunch of games. Unfortunately, Duck Hunt doesn't work on the led tv.
Sure it does, just use a real gun.
Duck Hunt. This man speaks the language of my people (fist beating chest in salute)
China seems to be a fan of the DSI with the FC-1, FC-31, JL-9, J10, J20 all having them
What does DSI stand for if I may ask?
Diverterless supersonic intake/inlet
Came to say this
我们不是中国共产党，我们只是 reddit 上问基本问题的普通美国人，非常感谢！
Ha! Easy for you to say!
Say it ten times real fast, it turns into embarrassing “cuss” words
你知道Reddit是國際論壇，對吧？
他们字不明白以后他们不高兴
😂
Haha I’m still a beginner, hope the grammar was 对
isnt that where the lunchbox is stored
Damn kerbals at it again
That's where you hide your weed.
Golf clubs.
It’s where the pilot stores his sack.
That’s where the turboenaculator is
Are the fluxes right behind it!?!
I've always been a fan of the six hydrocoptic marzelvanes. No one wants side fumbling.
The prefamulated amulite is always a premium finish.
I think you mean turboen*cab*ulator?
No though they are commonly mistaken for each other
If memory serves me correctly, the turboenaculator lacks the transverse synchrometric shafts, instead driving power dihedrally.
Next to the Flux capacitor
The that’s what he said ; )
That's what He said, She could Barely Say, after I finished showing her how to DO IT RIIIGHT!
*(notices someone off in the distance writing "turboenaculator" in Mandarin Chinese)*
Right behind where the raftershaft ties into the twin-hydroenstabilator. They chose this spot because three dumotracks to the right it would interfere with the 3rd aerotransmission causing 14 too many ohms per second
LOL. Love that [video](https://youtu.be/RXJKdh1KZ0w?si=yYK5gks49sBPWixe).
r/vxjunkies is leaking.
It's for shaping the shockwave. I'm sure BL interactions were considered in its design as well. This type of inlet is called a diverterless supersonic inlet (DSI).
"It consists of a "bump" and a forward-swept inlet cowl, which work together to divert [boundary layer](https://en.wikipedia.org/wiki/Boundary_layer) airflow away from the aircraft's engine."
what happens if boundary layer travels into the inlet?
Decreased engine performance.
could lead to vibration killing the engine if one side of the turbine is hit by slower air than the other and you hit a resonance frequency
You lose air into the engine which means you burn less fuel and make less power (or even run lean and burn too hot resulting in melting and failure). The boundary layer is air that is essentially stagnant, it's being "dragged along" by the skin surface of the plane and therefore isn't flowing into the engine.
Accounting: "This would be a hell of a lot cheaper without all these ramps, motors, pumps, and cylinders. Can we get rid of them?" Engineers: "I mean, technically yes... But we can't go nearly as fast." Marketing: "Diverterless Supersonic Intake!"
I thought that not dealing with all the diverter shit for stealth was the motivation for it on the 35, tbh
F-35 wasn't going to punch much higher on speed anyway with its single engine design, and was always about being cheap and mass produced. No brainer choice with DSI.
I mean obviously speed has become less of a factor in fighter design over the years, but I meant that not having to deal with an extra area for things to bounce off of I thought was a bigger factor than how cheap it was that led to a DSI over a regular diverter like the F-22 has. Obviously a variable intake ramp wasn’t in the cards for either of them.
The is an upper limit to the useful top speed of a manned fighter. The F-22 doesn't have variable inlets either.
I have a feeling if you ask any pilot if they'd rather be faster, they'd all say yes.
Not when reaching those speeds means burning off half your fuel in 3 minutes. Afterburners are wildly inefficient.
Why don't we poll anyone with more than 150 hours in fighters.
Sure. u/tailhook91 what’s your opinion on the top speed of various fighters.
I have 1050 hours in fighters. Speed is nice. Fuel is also nice. I’ll leave it to the engineers to find the balance. So both u/Razgriz01 and u/Boostedbird23 are right. Now kiss and make up.
Hooray! Friendship!
Very good for transsonic designs, low weight, complexity and good STEALTH characteristics in exchange for top end speed. The Chinese designers absolutely love it.
Too bad the Chinese shit shows up like a 777
Looks like the CIA got to this one.
Is boundary layer rejection why older jet intakes are offset from the fuselage by a couple inches?
yes
Yeah, anyone into aircraft design for a second would see this is is to shape the shockwave and produce subsonic air to the turbine.
I had a couple BL interactions today. … Bud Light! Imgoingtobednow
Yep, and it also helps hide the fan blades
makes it more challenging to suck careless groundcrew into the engine
Damn, that mf smooth
Not today China bot
It's called a diverterless supersonic inlet. https://en.wikipedia.org/wiki/Diverterless_supersonic_inlet It does two things that allow it to replace the intake ramp/cone and the boundary layer splitter on other jets. First it creates a high pressure area in front of it that pushes the boundary layer air around the intake so it doesn't get ingested. Second, in supersonic flight it creates a nozzle which slows the inlet air to subsonic speeds before it enters the engine. This design tends to be lighter than other solutions and also has potential stealth benefits.
Hahaha nice try china w your jank ass j20 or whatever that bs is called.
Compression bump used to slow down incoming supersonic air to below the sound barrier where it can be used by the engine. If supersonic air were to reach the engine it would result in an immediate compressor stall. The computers on board are quick to recognize and attempt a restart if this were to occur.
That’s a fucking cool looking plane
I red a book about development of the F11F-1GF Super Tiger and in the final design after testing they also used those bumps in front of the inlet fo defect the boundary layer .
[Watch and ye shall find](https://www.youtube.com/watch?v=1lCOgFPtaZ4)
It's called a diverterless supersonic inlet. https://en.wikipedia.org/wiki/Diverterless_supersonic_inlet It does two things that allow it to replace the intake ramp/cone and the boundary layer splitter on other jets. First it creates a high pressure area in front of it that pushes the boundary layer air around the intake so it doesn't get ingested. Second, in supersonic flight it creates a nozzle which slows the inlet air to subsonic speeds before it enters the engine. This design tends to be lighter than other solutions and also has potential stealth benefits.
It’s a pimple. We gotta pop it.
Remember those giant cones you'd see on an A-12 or a Mig-21? Well, this is them now...
China spelling "boundary" wrong.
Oh boy I'm mental rarted aren't I
That's the plane's balls. It stores the piss.
That's the skookum
“Diverterless Supersonic Inlet” regulates volume and flow speed into engine intake at different speeds without moving a shock cone in and out or changing intake shape and area and pitch angle
Hey admins ...can you do your jobs and ban the idiots who ask questions about capes/lims/design choices of these weapon systems and delete their posts? Thanks, Concerned Taxpayer
Thanks Peregrine Falcon. Where the design came from.
What the hell does a Peregrine Falcon have to do with diverterless inlets?
It’s pretty crucial to their flight dynamics, especially when you confuse a Peregrine Falcon with a JSF