I actually asked why jet engines were not used in place of the SRBs on the Space Shuttle on space.SE a few years ago, there were two really good answers: https

I actually asked why jet engines were not used in place of the SRBs on the Space Shuttle on space.SE a few years ago, there were two really good answers: https://space.stackexchange.com/questions/6256/why-were-jet-engines-not-used-in-place-of-the-solid-fuel-in-the-sts-srbs https://space.stackexchange.com/questions/6256/why-were-jet-...