Bölkow BORAS

[Barrington Bond]

Space Transporter concept "BORAS" – Bolkow Raum Transporter. Bolkow Developments KG Two stage space transporter with horizontal take-off. First stage uses 8 high – pressure ejector rocket engines. Each engine has 248 kN thrust. Upper stage has 2 rocket engines and a payload of 3 t. Launcher mass of 200t. 1967?



Anyone have more detail on this one?

 

[Barrington Bond]

Think this is earlier version.

 

[TheKutKu]

French Secret Project 3 and British Secret Project 5 relatively briefly go over it.
Not a lot more information, Bolkow joined Junker's Raumtransporter study in 1963, and the study continued in 1964-1965.
British Secret Project 5 Mentions the use of Ramjet-Rocket mix on the booster stage, but French Secret Project 3 says the Booster engines are air augmented ("partially shrouded combustion chamber"), like in your second post, the figures given are identical to your second post.
"In 1966, research [At Bolköw] focused on re-entry vehicles along the "lifting body" design methodology"

Think this is earlier version.

Version with up-angled wing-tips.