Wait isn't this the first prototype?
As this is the first glimpse of the topside of let's call it J-36 Gai (or A?), it appears the top intake is changed, it looks more "pointy" and maybe a bit more shallow (though it might be due to the roll angle). Do we see some cockpit area change too, again a bit more shallow, or maybe same applies?
Oh and almost certainly there is an EO aperture on top of the chine too, so seems there are 4 in total split above/below the chine.
As this is the first glimpse of the topside of let's call it J-36 Gai (or A?), it appears the top intake is changed, it looks more "pointy" and maybe a bit more shallow (though it might be due to the roll angle). Do we see some cockpit area change too, again a bit more shallow, or maybe same applies?
Oh and almost certainly there is an EO aperture on top of the chine too, so seems there are 4 in total split above/below the chine.
If you’re confident in your initial flight data relative to your preflight simulation work you can take a bit more risk and test different flight conditions in parallel. Alternatively you can also end up with accelerated flight testing schedules if your preflight simulation work is good enough. The “digestion” is actually about engineering tweaks and studies when your expected and tested results don’t align. If they do testing can end up being a very quick process.Is it normal for a fighter to have 4 prototypes within one year? There doesn't seem to be enough time in-between to really digest the results from flight tests before another prototype is already flying.