I thought Wanghai was the 9th?
Either way it looks like the formation lights have been upgraded. Possibly they’ve upgraded the avionics as well.
J-20 5th Gen Fighter Thread VIII
- Thread starter Blitzo
- Start date
I thought Wanghai was the 9th?
Either way it looks like the formation lights have been upgraded. Possibly they’ve upgraded the avionics as well.
It doesn't look like just a simple banding to me.
Those banding mostly visible on video with low bit rate.
And I don't see the same banding on other part of picture with similar color gradient.
The picture is 1920x1080, size is 203KB. A photo of the same dimension taken by my mobile phone is 1.3MB. So the picture is highly compressed, similar to low bit rate in video, therefor subject to strong artifact.
The other part of the picture does not have similar gradient. Gradience is a function of curvature. Fine gradience means the color and/or luminance changes in very fine small steps due to the curve, it is more pronounced in a curvy surface (DSI), not on a flat or near flat surface (the other part of the aircraft).
Well, you don't have to believe me, but this is what I learnt from processing my digital photos.
Another evidence is the central rib of the DSI. That goes horizontally, yet it shows the same virtical lines in the frontal picture. That tells me that these lines are artifacts instead of physical structure underneath.
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"The waterbed effect of the inflatable DSI works therapeutically for the boundary layer, convincing air molecules to enter the air intake without disturbance, thus providing an extra 10% thrust in all flight regimes"
Source: Link
The F-22's cost model is outdated, but its research and development model is very similar to that of J-20 and still has reference value.
However, unless Lockheed Martin announces the details of the research and development cost sharing of the three sub-models of F-35, it will be difficult for outsiders to clearly distinguish them. The F-35 project was developed and marketed as a joint project that simultaneously meets the needs of three branches of the US military. Its unit price includes not only the amortization of research and development costs, but also wider after-sales services than previous aircraft, and there was a negotiation game in the context of a single supplier's monopoly scene. Its cost model should be very different from that of J-20.
The F-35 unit costs I used were very clear these are the flyaway costs without any R&D component.
The F-35 operating costs are also accounted for separately and were $4.1 Mn annually as of 2021.
The U.S. military did not pay for the F-35's R&D costs separately, so even the flyaway cost cannot be completely exclusive of R&D costs. If the maintenance cost is contracted separately, then it does not need to be taken into consideration.
Another factor to consider is that the F-35 project is a jointly funded project by multiple countries. It is completely unsuitable as a reference for estimating the cost of the J-20 project.
by78
General
antiterror13
Brigadier
How many J-20s in that 9th Air Brigade ?