[donaldo]

If memory serves those five F-1s were very thirsty, They burned fifteen tons of propellants per second, developing seven and a half million pounds of thrust, one hundred sixty million horsepower. I can’t comprehend why they didn’t collapse under all that pressure. In fact, the entire Apollo program still impresses me. Also impressive is the fact that all twelve men who walked on the moon were Americans.

[nascarnation]

all twelve men who walked on the moon were Americans.

White males, I hope you're showing the appropriate guilt over this stunning lack of diversity.....

[colorado tanker]

That Saturn V was an amazing machine. You’re right, the numbers are mindboggling. The Sov’s gave up trying to build anything that powerful.

[Talisker]

If memory serves those five F-1s were very thirsty, They burned fifteen tons of propellants per second, developing seven and a half million pounds of thrust, one hundred sixty million horsepower. I can’t comprehend why they didn’t collapse under all that pressure.

Because they were actually just five second stage J-2 engines in an identical configuration, just with big nozzles.

After all, the thing only had to get to orbit.

[ProtectOurFreedom]

Rocketdyne turbopump for Saturn V F-1 engine. Turbine, fuel pump and oxidizer pump all on a single shaft. Engine bearings cooled by fuel. Oxidizer pump: 24,811 gpm. Fuel pump: 15,741 gpm. Turbine generated 55,000 brake horsepower. Turbine inlet gas was 1,500F; Oxidizer pump inlet -300F. Mass flow to turbine: 170 lb/sec. Fuel pressure at injector face: 1,150 psi.

[doorgunner69]

Been years since I read about it, but they had problems feeding the fuel smoothly to the engine. Needed some sort of diffusing spray or such. What they ended up with was the size of a manhole cover with lots of holes punched in it.

Mind boggling. Rockedyne used to have a dummy sitting out front of their San Fernando plant in the seventies.

[mad_as_he$$]

My Strengths of Materials Professor in college was the structural engineer team leader on the stage 1 of Saturn 5. He would never actually admit it but we ran the numbers and yes it is a great feat that the engines never tore the thing apart.