The one from ifeng, might just be meI hope we can see the clear picture
It's the nozzle contractions. Ws-10s don't contract as much.
J-20 5th Gen Fighter Thread IV (Closed to posting)
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It's the nozzle contractions. Ws-10s don't contract as much.
by78
General
I found these interesting videos on J-20's maneuverability by an RC model builder. I know nothing about aerodynamics, so I can't judge the validity of the views expressed.
What do you guys think? Deino, Brat, Aeroengineer, Latenlazy? Much appreciate it.
[video=youtube;lw-gug6GdEI]https://www.youtube.com/watch?v=lw-gug6GdEI[/video]
[video=youtube;_IwyMhbK_rc]https://www.youtube.com/watch?v=_IwyMhbK_rc[/video]
What do you guys think? Deino, Brat, Aeroengineer, Latenlazy? Much appreciate it.
[video=youtube;lw-gug6GdEI]https://www.youtube.com/watch?v=lw-gug6GdEI[/video]
[video=youtube;_IwyMhbK_rc]https://www.youtube.com/watch?v=_IwyMhbK_rc[/video]
An oldie but a goodie. It was a very interesting perspective, but since I saw this video I've come to the conclusion that we shouldn't take away too much from it. After all, the J-20's design also needs to address the transonic and supersonic flight regimes, and clearly needs to address yaw stability to some degree because it has ventral fins.
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that thing has alot more power than its weight, compared to the usual thrust to weight of your modern fighter aircraft
plus the control surfaces are different, weight distributions, etcetera
it's a nice toy, that's all
Amen.
Does not even approximate the weight distributions, stresses, aerodynamics, power, avionics, etc., etc. of the real thing. Whatever it may do, it would have no bearing on, or resemblance to the real aircraft...other than the basic shape and color.
by78
General
How could you tell the P/W ratio for the RC model is much greater than that of the J-20? As a complete novice, I'm just curious.
You're talking about fan motors in a styrofoam body light enough to be thrown.
broadsword
Brigadier
For that kind of ratio to exist in a full scale plane is still in the dreamy future, way beyond the reach of current technology.
by78
General
I browsed the RC model maker's website but couldn't find any info. on the J-20 model.
Interestingly, their F-22 model has a T/W ratio of approximately 1.27, which is kind of close to the actual thing.
Apparently, the fan motors generate under 1kg of thrust, and the body + servos + motor weigh around 740g.
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