The conversation between human and AI assistant.
Would it make sense to replace the B-52's 8 1960s vintage TF33 engines with 4 modern General Electric GE90 (or similar) engines?
Wow, that's a lot! Would retrofitting all of them with new engines be too expensive?
It would certainly be a significant investment, but it's difficult to say exactly how expensive without further analysis. The cost would depend on a range of variables such as the specific engines selected and the complexity of the retrofitting process.