Mikeybikey
New Member
The ones around where the intakes are. Look closely, the hexagon mesh looking thingies.
Last edited:
J-20 5th Gen Fighter Thread IV (Closed to posting)
- Thread starter siegecrossbow
- Start date
- Status
The ones around where the intakes are. Look closely, the hexagon mesh looking thingies.
No, the dark ones on top of the engine nacelles. It's hard to see their shape in the above pictures, but there's another picture that's much bigger from the same angle.
I just saw a thread on cjdby that discussed what those hexagonal mesh covered things could be
(thread: )
the meshes in question:
We see that the two mesh area differs in colour depending on the angle that you observe them. From slightly forward angle, the front panel appears dark while the back panel is lighter in colour:
From the side they both looks the same in shade:
and from behind this time the back panel is dark and front is lighter.
This tells us that they are air inlet and outlet of some sort. The front is for letting airflow in, as looking directly into the duct from that angle would produce the darker colour, while the back panel is angled outward and serves as the outlet. This is on both side of the airplane.
It is also argued that those panels are the same as the one on the back of the 2001 and in 2011 they've decided to move it to the sides:
Not only that but the panels also looks different in shade depending on the view angle, just like with the side panels, so they are probably for the same purpose:
The reason could be that back of the plane are low pressure regions and during some maneuvers airflow could be a problem. Moving the panels could also mean a better usage of internal space in that region for other stuff such as more fuel.
continued,
(thread: )
the meshes in question:
We see that the two mesh area differs in colour depending on the angle that you observe them. From slightly forward angle, the front panel appears dark while the back panel is lighter in colour:
From the side they both looks the same in shade:
and from behind this time the back panel is dark and front is lighter.
This tells us that they are air inlet and outlet of some sort. The front is for letting airflow in, as looking directly into the duct from that angle would produce the darker colour, while the back panel is angled outward and serves as the outlet. This is on both side of the airplane.
It is also argued that those panels are the same as the one on the back of the 2001 and in 2011 they've decided to move it to the sides:
Not only that but the panels also looks different in shade depending on the view angle, just like with the side panels, so they are probably for the same purpose:
The reason could be that back of the plane are low pressure regions and during some maneuvers airflow could be a problem. Moving the panels could also mean a better usage of internal space in that region for other stuff such as more fuel.
continued,
The conclusion is that the openings are for ACFC,Air Cooled Fuel Cooler. Because other forms on openings on planes don't require a pair of in-out openings, or don't require them to be open all the time.
You can see the F-22's ACFC opening:
If you are wondering why there is only one panel on each side for the F-22, that is for exhaust. The inlet is hidden between the intake ramp and the body:
Path of air flow inside the plane
continued,
You can see the F-22's ACFC opening:
If you are wondering why there is only one panel on each side for the F-22, that is for exhaust. The inlet is hidden between the intake ramp and the body:
Path of air flow inside the plane
continued,
The j-20 does not have a intake ramp or boundary divider, so the two intakes were placed out in the open. Examples of intake position on other planes:
The plane with the ACFC arrangement closest to the J-20 is actually the F-35, probably because it also uses DSI inlet and does not have a ramp to hide the intake:
The plane with the ACFC arrangement closest to the J-20 is actually the F-35, probably because it also uses DSI inlet and does not have a ramp to hide the intake:
The j-20 does not have a intake ramp or boundary divider, so the two intakes were placed out in the open. Examples of intake position on other planes:
The plane with the ACFC arrangement closest to the J-20 is actually the F-35, probably because it also uses DSI inlet and does not have a ramp to hide the intake:
I saw this thread a few days back but I'm skeptical, because the holes are on the outer walls of the intake tunnel.
Last edited:
ladioussupp
Junior Member
Time for a photo fix:
1600x1027
1600x1089
1200x775
Please pay attention to the nozzles. The left nozzle is convergent just before touch down. And it becomes divergent at touch down.
Someone said that J-20's flight control system intends to do this. By adjusting thrust to control flight. However, IMHO, it may be a bug of FCS.
Its more likely a function of the fuel controllers, as the engines are zero-thrusted, ie power levers pulled all the way back, one engine may lead or lag slightly behind the other. The other possibility is that the thrust levers may not be synchronized in the pilots hand as he zero thrusts, the power levers, they both fit in one hand, and depending on how you hold the levers, one may be in a slightly different position than the other???? The other possibility is that the pilot is coming back in with the levers to arrest a sink, and the throttle controllers may not be "synked" together, in any event it will not affect the control of the aircraft at lower power settings, and the J-20 should fly quite well on one engine......I rather doubt the J-20 has auto-throttles, but I could be wrong.......????
Is this not the F-35's gun opening?The plane with the ACFC arrangement closest to the J-20 is actually the F-35, probably because it also uses DSI inlet and does not have a ramp to hide the intake:
F-35s gun opening is on the left/port side. Deceptive, i know.
- Status