What are the two major architectural approaches currently defining high-speed flight?

Answer

Air-breathing systems and boost-glide vehicles

High-speed flight development is defined by two primary architectural concepts: air-breathing systems, such as the scramjet, and boost-glide vehicles that separate from a booster to glide at hypersonic speeds.

What are the two major architectural approaches currently defining high-speed flight?

#Videos

Breakthroughs in Science: Hypersonic travel - YouTube

Aerospacedevelopmentaircrafthypersonic