Hypersonic Science: The First Darkstar: How Fast Can An Air-breathing Engine Go?

What came before Darkstar? And are space planes still a viable concept?
The Terran Space Academy reviews advanced air breathing and rocket powered space planes.
Covering current SCRamjet operations as well as the supersonic first stage carrier planes
XB-70 and MR-3, and discussing the Blackstar Experimental Orbital Vehicle, as well as reviewing
The Lynx horizontal launch to orbit space plane and the National Aerospace Plane.
Thank you so much for watching!
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Credits

Artists

https://twitter.com/hazegrayart
https://twitter.com/C_Bass3d
https://twitter.com/AlexSvanArt
https://twitter.com/_fragomatik_
https://twitter.com/Neopork85
https://twitter.com/RGVaerialphotos

Companies
https://twitter.com/NASA
https://twitter.com/SpaceX
https://twitter.com/blueorigin
https://twitter.com/Space_Ryde
https://twitter.com/VirginGalactic
https://twitter.com/relativityspace
https://twitter.com/NeutronStarSys

Music Credits

Light Awash by Kevin MacLeod is licensed under a Creative Commons Attribution 4.0 license. https://creativecommons.org/licenses/by/4.0/

Source: http://incompetech.com/music/royalty-free/index.html?isrc=USUAN1100175

Artist: http://incompetech.com/

I Am a Man Who Will Fight for Your Honor by Chris Zabriskie is licensed under a Creative Commons Attribution 4.0 license. https://creativecommons.org/licenses/by/4.0/

Source: http://chriszabriskie.com/honor/

Artist: http://chriszabriskie.com/

Extra Credit
https://patents.google.com/patent/US4802639A/en
http://www.mywesttexas.com/editors_picks/article_4345625e-c892-11e1-a3d2-001a4bcf887a.html
https://www.nationalmuseum.af.mil/factsheets/factsheet?id=592
https://www.grc.nasa.gov/WWW/K-12/airplane/aturbj.html
http://www.astronautix.com/b/blackstar.html
http://www.russianspaceweb.com/spiral_orbiter_design.html

Notes:
Turbofans are the most efficient engines in the range of speeds from about 500 to 1,000 km/h (270 to 540 kn; 310 to 620 mph), the speed at which most commercial aircraft operate. The closer the exhaust velocity is to the aircraft velocity, the higher the propulsive efficiency (but the lower the thrust). You need to strike a balance.

Видео Hypersonic Science: The First Darkstar: How Fast Can An Air-breathing Engine Go? канала Terran Space Academy