Yes, scramjets are faster than other non-rocket planes. They have a lower bounds of approx. Mach 3, but then go up from there. The big challenge is basically m

Yes, scramjets are faster than other non-rocket planes. They have a lower bounds of approx. Mach 3, but then go up from there. The big challenge is basically making sure that you mix your fuel with the air, combust it fully, and extract the energy before it flies out the back of the engine. Scramjets are the engines capable of this at the highest speeds.