Result of rocket engine research (cont)

• Engine propellant Rocket thrust (KN) Isp(sec)

• LE-7(1st stage) LO2/LH2 H-II(Japan) 207 445

• RD-180 EELV 8277 309

• RD-190 EELV 4150 311

• RL10B-2 LO1/H2 (Pratt&Whitney) 111 462

Notes: