The amount of work to simplify the Raptor engine, introducing secondary flow channels and adding regenerative cooling for exposed components, has been staggering. As a result, the Raptor 3 requires no heat shield, which reduces mass, eliminates the complexity of the heat shield, and the fire suppression system. It is also lighter, has more thrust, and higher efficiency than the Raptor 2. Mass production has already begun. According to SpaceX itself, the Raptor 3 engine has a thrust at sea level of 280 tons (Raptor 2's thrust at the same level is 230 tons). SpaceX's next-generation superheavy booster will have 35 such engines, they will provide a thrust of 9,800 tons, which is about 30% more than the thrust of the superheavy booster today