The MS-II was a proposed further development of the

S-II The S-II (pronounced "S-two") was the second stage of the Saturn V rocket. It was built by North American Aviation. Using liquid hydrogen (LH2) and liquid oxygen (LOX) it had five J-2 engines in a quincunx pattern. The second stage accelerated ...

rocket stage developed by

North American Aviation North American Aviation (NAA) was a major American aerospace manufacturer that designed and built several notable aircraft and spacecraft. Its products included: the T-6 Texan trainer, the P-51 Mustang fighter, the B-25 Mitchell bomber, the F ...

Rocket Specifications

Mass: 521,447 kg (1,149,593 lb)
Empty Mass: 49,877 kg (109,959 lb)
Thrust(vac): 5,165.790 kN (1,161316 lbf)
Isp: 425 s Burn Time: 361 s
Propellants: Lox/LH2. Isp(sl): 306 s
Diameter: 10.06 m (33.00 ft)
Span: 10.06 m (33.00 ft)
Length: 25.88 m (84.90 ft)
Engines: 5x J-2

External links

astronautix.com
Rocket engines {{engine-aircraft-stub