Saturn V anecdote

[C350]

I’ve struggled to keep up with them all, the problem is finding interesting new info as obviously the majority of the programs are all the same

[LHRFlightman]

Currently in California and I’m sure I heard a tv presenter say at launch the Saturn 5 burnt a A380 max fuel capacity, 259t every 19 seconds for 2m 41 seconds.

Mind boggling.

[Gary C]

LHRFlightman said:

Currently in California and I’m sure I heard a tv presenter say at launch the Saturn 5 burnt a A380 max fuel capacity, 259t every 19 seconds for 2m 41 seconds.

Mind boggling.

its the fuel pumps that get me !

almost 50 million watts, just to pump the fuel into the engine !

but as you say 2800 gallons (12,710 litres) of fuel per second is one hell of a flow so 320,000 litres in ~25 seconds

[RobDickinson]

The fuel pump is effectively the rocket engine though.

[Gary C]

RobDickinson said:

The fuel pump is effectively the rocket engine though.

Jet engine, get it right !

[RobDickinson]

Uh no, I was talking about the f1 engines. As was everyone else I assume.

[Gary C]

RobDickinson said:

Uh no, I was talking about the f1 engines. As was everyone else I assume.

The fuel pump motor of the Rocketdyne F1 rocket engine was basically a gas turbine, not a rocket engine.

Edited by Gary C on Thursday 18th July 04:45

[RobDickinson]

Yes, it's a gas turbine, which is the rocket engine. It's the same thing.

Which isn't a jet engine, which the a380 has.. Somewhat confusing..

[Gary C]

RobDickinson said:

Yes, it's a gas turbine, which is the rocket engine. It's the same thing.

Which isn't a jet engine, which the a380 has.. Somewhat confusing..

Didnt mean jet (i know i typed it in haste then edited it ), but the fuel pump certainly isnt a rocket engine

mind you, its small fry compared to the two 670MW turbines I have about 40 meters away, though they are a little longer

Edited by Gary C on Thursday 18th July 05:44

[RobDickinson]

The fuel pump is the rocket engine.

[Gary C]

RobDickinson said:

The fuel pump is the rocket engine.

How do you work that out.

The fuel pump has a turbine in it ?

[Gary C]

RobDickinson said:

Yes, it's a gas turbine, which is the rocket engine. It's the same thing.

Which isn't a jet engine, which the a380 has.. Somewhat confusing..

Actually, a rocket is a jet engine

Quote wiki
"A rocket engine uses stored rocket propellants as reaction mass for forming a high-speed propulsive jet of fluid....Compared to other types of jet engines, rocket engines are the lightest and have the highest thrust"

[RobDickinson]

Yes usually a couple.

A rocket engine is a fuel pump which has a few turbines.

[Gary C]

RobDickinson said:

Yes usually a couple.

A rocket engine is a fuel pump which has a few turbines.

????????

dont get that at all.

[Gary C]

A rocket is somthing that uses a jet to generate a reaction thrust

A gas turbine expands gas across impulse or reaction blades to impart rotary motion on a shaft. (and could form part of a jet engine)

Edited by Gary C on Thursday 18th July 06:13

[Gary C]

Gary C said:

RobDickinson said:

Yes usually a couple.

A rocket engine is a fuel pump which has a few turbines.

????????

dont get that at all.

A rocket doesnt even need a fuel pump or any turbines.

Eg a solid fuel rocket.

[RobDickinson]

Liquid fueled rocket like what we are talking about.

Try one of those without a fuel pump.

[Gary C]

RobDickinson said:

Liquid fueled rocket like what we are talking about.

Try one of those without a fuel pump.

? still dont get where your going.

The fuel pump is not the rocket, its a pump driven by a gas turbine, not a rocket in itself. It delivers fuel and oxidiser to the injectors. Overall you could say it forms an essential part of the F1 rocket engine, but its not a rocket in of itself.

ie, i dont get

RobDickinson said:

A rocket engine is a fuel pump which has a few turbines.

or

RobDickinson said:

Yes, it's a gas turbine, which is the rocket engine. It's the same thing.

Edited by Gary C on Thursday 18th July 06:21

[RobDickinson]

RobDickinson said:

The fuel pump is effectively the rocket engine though.

I didn't say rocket. I said rocket engine, wrt to the ones on the saturn V.

[Zirconia]

C350 said:

I’ve struggled to keep up with them all, the problem is finding interesting new info as obviously the majority of the programs are all the same

I find a few good documentaries make their way to Apple iTunes, although I have recorded many of these in the last few days I think I shall get a few digital copies if they get to iTunes. Then Take my time. Price depending of course.

I have the Saturn V tests on DVD, a firm called Spacecraft Films put then to gather from NASA footage (hells bells, just checked the prices 2nd hand!!!! might not be on sale anymore). They are rather good and no commentary if memory serves but DVD, not sure if they have had a bump to Blu-ray. A lot of what I have seen in the recent TV stuff comes from footage available (not all easy to get admittedly).
This does need airing.
https://apolloinrealtime.org/11/

Personally I keep an eye on threads like this as you get some great info and insights.