On 2018-03-03 02:41 PM, Henry Spencer wrote:
The mass overhead can be substantial, and minimizing that requires
using reactive liquids (e.g. the N2O4 injection used in the Titan III
SRBs) which add handling hazards. I'd guess there might also be
issues with putting injection ports in ablative nozzle walls. And
predicting the exact effectiveness of LITVC is difficult, which
hampers its use in big bureaucratic programs that value certainty and
abhor the idea of having to make late design changes.
