Why aren't air turborocket engines used in jet fighters?
Few Third World countries have the capability to manufacture high quality turbine blades. Thus, why not use air turborocket engines for the time being?
Also, during World War II, rocket fighters like the Messerschmitt Me 163 Komet were developed. They were fast but since they excessively consumed fuel, their range was reduced. Using an air turbo rocket, it might be possible to increase the range of the Me 163 or similar such aircraft. So, why is nobody looking into it?
I feel air turborockets will be cheaper than a pure gas turbine in a fighter jet configuration. Why is no one pursuing this idea?