Questions tagged [saturn-v]

Questions pertaining to the launch vehicle developed by Wernher von Braun's team under Arthur Rudolph's supervision at Marshall Space Flight Center for carrying astronauts to the Moon. Saturn V (or C-5 configuration) had three stages with clustered engines F-1 and J-2 and an instrument unit.

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1answer
258 views

Did they mount the Apollo Mobile Service Structure (MSS) to the launch pad using nuts and bolts to be prepared for a storm?

The Mobile Service Structure (MSS) was used for every launch preparation of the Saturn V. It was removed some hours before launch. The MSS is the white tower on the left side. The MSS was moved and ...
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1answer
192 views

How was the S-IVB stage configured for the post-extraction retrograde dump?

When answering How exactly did the separation between Saturn V stage 3 and the Command / Lunar Module work? I first wrote that the retrograde dump after LM extraction happened "through the engine". ...
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2answers
1k views

How were the propellant pipes on the Saturn V LUT routed to the service arms?

I'm trying to design a model of the Saturn V Launch Umbilical Tower. I can find pictures showing how the propellant piping runs along the service arms, and from pictures showing the pipes running up ...
5
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1answer
655 views

Apollo 6, reason for premature engine shutdown of two engines of second stage of Saturn V?

I found different versions in the English and German Wikipedia articles about the Apollo 6 flight. "Das zweite Triebwerk wurde vom Steuerungssystem fälschlicherweise deaktiviert, weil die ...
5
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1answer
567 views

What is a rocket engine “burp”, and why does it happen?

I've seen the term "burp" used, for example, in a description of the Saturn V F-1 engine start sequence (or what is perhaps the source document - see pdf p 62, source page 4-9). What does it mean? ...
4
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1answer
178 views

Saturn V and Atlas Engines exhaust issues

This is a follow up question to "Organic Marbles" answer to my earlier question about the atlas rocket exhaust nozzle, regarding the Apollo F1 thrust nozzles having metal baffles/fins inside to ...
4
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0answers
93 views

Separation of the stages of Saturn V by pyrotechnics, what about electrical and mechanical connections?

We know that the stages of Saturn V were mounted to each other with explosive bolts. Separation was done by ignition of these pyrotechniques. But we also know the control computer of the Saturn V was ...
4
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0answers
178 views

Launch altitude and fuel cost [duplicate]

In this question, higher altitude launches are discussed, but no one seems to address fuel consumption. Let's take the Saturn V for example. A Saturn V rocket on the launch pad weighed approximately ...
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0answers
243 views

How much open source is the Apollo program today?

What percentage of NASA's Apollo program is considered to be open source as of today? I mean if I wanted to replicate a lunar mission from scratch exactly the same way they did it, regardless of the ...
3
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1answer
4k views

Where does the turbine exhaust go on the Saturn V F1 engine?

Diagrams and descriptions of the F1 engine as used on the Saturn V booster identify a turbine exhaust manifold which leads down from the fuel turbopump and wraps around the main nozzle. As it winds ...
3
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1answer
145 views

Estimate of how fast will the Starship/Super Heavy be moving 5 and 10 seconds after liftoff?

I am wanting to make a comparison of the expected initial seconds of the ascent of the Starship/Super Heavy compared to the similar time of the Saturn V ascent. If this chart (from a NASA space math ...
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0answers
29 views

From attitude control malfunction to launch escape Go signal?

I’ve seen and read about launch failures caused by crossed thrust vectoring wires which fed rock and tilt commands to the wrong engine gimbal actuators (rock command going to tilt cylinder and tilt ...
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0answers
71 views

Space shuttle digital signal processor (DSP): floating point or fixed point?

Digital signal processors can represent irrational numbers using fixed-point or floating-point data types. Fixed point means fixed number of decimal places, and floating point means floating number of ...
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1answer
248 views

Kerosene engine film cooling

So it is clear that kerosene fueled engines use two fluids for film cooling via injection in the combustion chamber, throat, or nozzle. (That is "true film cooling" and not just a fuel rich outer ring ...

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