Similar to バイキングエンジン

RD-861

RS-18

RS-27

RS-27A

RS-68

S5.142

S5.92

TM65

TR-201

XLR81

Vinci (rocket engine)

Aestus

Gas-generator cycle

HM4

LR91

Vikas (rocket engine)

European Space Agency

CSTS

Europa Jupiter System Mission – Laplace

ELA-2

ELA-3

KEO

MARS-500

TEXUS