-The trade-off is obvious: pylons and heavy stores erode stealth and speed, making the jet easier to spot and slower to sprint. J-20 Beast ModeNewly emerging photos appearing on X, showing the aircraft fully armed with as many as eight air-to-air missiles beneath the wings, thrust the question of ‘beast mode’ on the J-20 into the spotlight. Speculative observations made by a Chinese military expert researcher regarding the J-20 posting raised the question of whether the missiles were beyond visual range, PLAAF PL-15 air-to-air missiles. Nevertheless, the ability to fly with as many as eight air-to-air missiles on external pylons or hardpoints suggests that the J-20 can operate with substantial air-to-air long-range firepower. Stealth & Speed for J-20However, it is naturally self-evident that a fully loaded J-20 with weapons on external hard points would not operate with speed and stealth.