Could this 6th gen go a similar way with the J-20 in regards to the engine? That it runs an interim engine(WS-15) before the intended one is introduced?
Is that meant to depict all moving wing tip that function as control surfaces, or do those wing tip simply detach for ease of model transportation and set up？Even if surely not an accurate model of the real concept and as such more a generic placeholder, it is anyway a hint towards the PLAAF's future 6th generation fighter concept: Unveiled at the "13th Five-Year Plan" Achievement Exhibition in Shanghai on 24th December 2021.
(Image from Shanghai Avionics Institute of AVIC via Erik Valensvek 45 / @ErikVAL45_MACH5 from Twitter)
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Concorde was supercruising with a thrust ratio of 0.38... and the old english electric lightning with a thrust ratio of a 0.8. Why not ? It's all about drag. 6th generation fighter without tail will have an advantage in drag reduction.