J-20 5th Gen Fighter Thread IV (Closed to posting)

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ShariQ Ansari

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Everything seems to be in place except for WS-15 Engine with 2D thrust vectoring nozzle as well as RAM Coating although it does have Ram Coating on it I would still want it to have F-22 style RAM Coating on it coz that seem to be the gold standard & Hopefully they will remove fins which they are using to hide the engine nozzle.
 
Air Force Brat

Air Force Brat

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ShariQ Ansari said:
Everything seems to be in place except for WS-15 Engine with 2D thrust vectoring nozzle as well as RAM Coating although it does have Ram Coating on it I would still want it to have F-22 style RAM Coating on it coz that seem to be the gold standard & Hopefully they will remove fins which they are using to hide the engine nozzle.
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I find it humorous that anyone would not like those ventral fins, they bring a very high level of directional stability at very high alpha and also a downward pitching moment at the same high alpha levels??? Not to compare aircraft, but another fifth gen with very small verts relies on OVT for adequate or better directional stability in the Yaw regime, lose an engine and there goes your ability to recover from the very high alpha, (post stall), flight regime that many believe are one of the secrets of the fifth gen aircraft.
Part of the design criteria laid out by Dr. Song was the ability to recover from those very high alpha flight regimes without the benefit of OVT. The J-20 is likely the only aircraft able to do so???

We do have an aerodynamics thread, and contained within that thread are some very high level aerodynamics discussions of the J-20, I believe you might find them interesting?
 
Brumby

Brumby

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Air Force Brat said:
I find it humorous that anyone would not like those ventral fins, they bring a very high level of directional stability at very high alpha and also a downward pitching moment at the same high alpha levels??? Not to compare aircraft, but another fifth gen with very small verts relies on OVT for adequate or better directional stability in the Yaw regime, lose an engine and there goes your ability to recover from the very high alpha, (post stall), flight regime that many believe are one of the secrets of the fifth gen aircraft.
Part of the design criteria laid out by Dr. Song was the ability to recover from those very high alpha flight regimes without the benefit of OVT. The J-20 is likely the only aircraft able to do so???

We do have an aerodynamics thread, and contained within that thread are some very high level aerodynamics discussions of the J-20, I believe you might find them interesting?
Click to expand...

Spoken by someone who actually has flown a fighter plane.
 
Air Force Brat

Air Force Brat

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Air Force Brat said:
I find it humorous that anyone would not like those ventral fins, they bring a very high level of directional stability at very high alpha and also a downward pitching moment at the same high alpha levels??? Not to compare aircraft, but another fifth gen with very small verts relies on OVT for adequate or better directional stability in the Yaw regime, lose an engine and there goes your ability to recover from the very high alpha, (post stall), flight regime that many believe are one of the secrets of the fifth gen aircraft.
Part of the design criteria laid out by Dr. Song was the ability to recover from those very high alpha flight regimes without the benefit of OVT. The J-20 is likely the only aircraft able to do so???

We do have an aerodynamics thread, and contained within that thread are some very high level aerodynamics discussions of the J-20, I believe you might find them interesting?
Click to expand...

Also I should add that the Engineer, and many fellow posters have determined that there is very little overall interest in OVT on any platform, not even the J-20??? it appears that there has been very little money or time spent developing OVT and the WS-15 will likely not include OVT in order to produce more thrust, with less expense and less maintenance???
 
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Brumby said:
Spoken by someone who actually has flown a fighter plane.
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In the interest of honesty Mr. Brumby, I have not flown an actual fighter aircraft, but I do have some time in a very high performance general aviation turboprop as co-pilot, I do have a broad range of GA experience, flying and maintaining general aviation aircraft, and have loved aircraft and flying since a tot in cloth diapers? I did fly????(and crash) a very early USAF C-130E flight simulator, (long before visuals were available), to my Dad's, and several innocent bystanders great humor when I was 9, but I was "hooked" long before that and flew one of my Dad's C-130 students personal Cessna 195s very aptly, at Christmas that same year.
As a pilot, I have an extensive knowledge of aerodynamics and the principles of flight, as I find fluid dynamics as it relates to any type of aircraft quite fascinating? I would however be happy to test fly the Mig-29 UB for sale here in Central Obamastan, for any interested "principles" at your expense??? LOL, Brat out, end off topic.
I would add that I took my AVATAR picture here in Central Obamastan, and have a few other very interestin photos of another similar Mig-29 also visible in the picture.
 
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A.Man said:
I Think I Have a bigger one

View attachment 11629
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A very detailed picture, much of the airframe appears to be either carbon fibre or flush riveted and covered with the radar absorbant coating, however aft of the main gear bulkhead, the fuselage surrounding the engines is clearly riveted, I'm wondering if is Titanium or Aluminum??? It does appear that the vents, verts, horizontal stabs, and control surfaces are carbon fibre?

This is an extremely nice photograph and gives us all an idea of the effort to attend to all the little details, it also looks extremely clean and well put together with outstanding craftsmanship?
 
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