Yeah I wonder how much "tying down" the test required, or if the engine alone is insufficient to make it fly (but still, if you make it too light it might wobbl

Yeah I wonder how much "tying down" the test required, or if the engine alone is insufficient to make it fly (but still, if you make it too light it might wobble too much, etc). The SRBs are certainly fire and forget but I'm not sure how the ratio of SRBs/Main engine thrust are compared with something like the Space Shuttle