A different way of achieving the same result is by using attitude thrusters. Either the big rocket nozzles can move around a bit, or you have smaller rockets that can be pointed in different directions. I don’t anything about Bezos’ rocket itself, but if it does not have fins it will have this. It is probably more efficient anyway, because wings (or fins) only work up to a certain altitude; after that air is to thin to have an effect, so you will need attitude thrusters anyway.
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