Multi Stage Saturn V

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lakeroadster said:
Pulled a photo of each stage into CAD and scaled them to pull dimensions to lay out the roll pattern and decal placement.
Click to expand...

You may find THIS helpful . . . Thanks to my long-time friend, the late Charles "Chuck" Corway.

Chuck's focus was always to share Scale Data, a belief that I hold in common.

Dave F.
 

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  • New Saturn V Modeling Drawings.pdf
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There goes my naive notions that model rocketry is of high science. I now find out it is just base entertainment. I am crushed.

The crowd gathers at the airfield to see the Great Waldo Pepper loop the loop. Buying popcorn to watch a Triumph of aviation or a finery crash, either is worth the price of admission. Step right up folks and witness history in the making! Watch as the Top Men tame the power of many, clustered black powdered motors and go to the moon. So exciting, I need a cigarette!

Like the excited little boy in Fahrenheit 451 watching the firemen go by, "There is going to be a fire!" Gather the family for wholesome televised entertainment. Must see TV. Beavis loves it! That's cool! FIRE!

The Henderson's will all be there, what a sight! Lastly through a Hog's head of real fire! In his way Mr. K will challenge the world! :)
 
Daddyisabar said:
The crowd gathers at the airfield to see the Great Waldo Pepper loop the loop. Buying popcorn to watch a Triumph of aviation or a finery crash, either is worth the price of admission. Step right up folks and witness history in the making! Watch as the Top Men tame the power of many, clustered black powdered motors and go to the moon. So exciting, I need a cigarette!
Click to expand...
The Great Waldo Pepper.... now that was a great movie... but, please... no smoking. Hey David, you up for some barbeque?
 
Double Hack, Watch Your Back, Don't Give Me No Smack, Jack

Interesting development today. I design a lot of rockets that use the base drag hack. Turns out there is a problem with the way that Open Rocket calculates base drag... as disclosed on this post. :facepalm:

So I revised the Open Rocket simulation for the Saturn V, following the Hack that needs to be performed if using the Base Drag Hack. The apogee of the rocket drops from nearly 1,000 feet... down to 670 feet.

No worries, I guess? :dontknow: It's all good for this rocket. The lower the apogee, the more visual wow factor and the higher the likelihood that all the rocket stages will be recovered.
 
lakeroadster said:
Double Hack, Watch Your Back, Don't Give Me No Smack, Jack

Interesting development today. I design a lot of rockets that use the base drag hack. Turns out there is a problem with the way that Open Rocket calculates base drag... as disclosed on this post. :facepalm:

So I revised the Open Rocket simulation for the Saturn V, following the Hack that needs to be performed if using the Base Drag Hack. The apogee of the rocket drops from nearly 1,000 feet... down to 670 feet.

No worries, I guess? :dontknow: It's all good for this rocket. The lower the apogee, the more visual wow factor and the higher the likelihood that all the rocket stages will be recovered.
Click to expand...
Hackity-hack, don't talk back...

670 feet seems improbably low for the total power involved in this rocket, but that's just a mindsim talking. Sure, this rocket's no minimum diameter greyhound*, but still seems low.

* It's far cooler than that. :D
 
lakeroadster said:
Double Hack, Watch Your Back, Don't Give Me No Smack, Jack

Interesting development today. I design a lot of rockets that use the base drag hack. Turns out there is a problem with the way that Open Rocket calculates base drag... as disclosed on this post. :facepalm:

So I revised the Open Rocket simulation for the Saturn V, following the Hack that needs to be performed if using the Base Drag Hack. The apogee of the rocket drops from nearly 1,000 feet... down to 670 feet.

No worries, I guess? :dontknow: It's all good for this rocket. The lower the apogee, the more visual wow factor and the higher the likelihood that all the rocket stages will be recovered.
Click to expand...
It's all good man. But say it like "sssaulgoodman." All blended together. Hey man the computer says 670 with everything going well in the cyberverse. I'm down with that. High altitude launch site too!
 
Last edited:
Cape Byron said:
And thus begins the afternoon's earworm.

"For the benefit of Mr Kite, there will be a show tonight on trampoline..."
Click to expand...
The playbill for Lakeroadster's Saturn V show will contain all the mission's parameters. Songs will be sung by the Bards for thousands of years!

"Having been some days in preparation a splendid time is guaranteed for all. And tonight Mr. Kite is topping the bill!"
 
Daddyisabar said:
The playbill for Lakeroadster's Saturn V show will contain all the mission's parameters. Songs will be sung by the Bards for thousands of years!

"Having been some days in preparation a splendid time is guaranteed for all. And tonight Mr. Kite is topping the bill!"
Click to expand...

"And of course Henry the horse dances the waltz!"

Good luck with that one...
 
lakeroadster said:
Double Hack, Watch Your Back, Don't Give Me No Smack, Jack

Interesting development today. I design a lot of rockets that use the base drag hack. Turns out there is a problem with the way that Open Rocket calculates base drag... as disclosed on this post. :facepalm:

So I revised the Open Rocket simulation for the Saturn V, following the Hack that needs to be performed if using the Base Drag Hack. The apogee of the rocket drops from nearly 1,000 feet... down to 670 feet.

No worries, I guess? :dontknow: It's all good for this rocket. The lower the apogee, the more visual wow factor and the higher the likelihood that all the rocket stages will be recovered.
Click to expand...
Expected altitude down but still the same speed off the rod? Height of initial staging still OK? I always need reassurance...and insurance...:)
 
boatgeek said:
Hackity-hack, don't talk back...
Click to expand...
:)
670 feet seems improbably low for the total power involved in this rocket, but that's just a mindsim talking. Sure, this rocket's no minimum diameter greyhound*, but still seems low.
Click to expand...
Include in your mind sim that it's really heavy. We know that, in normal two stagers, the booster motor has to lift the sustainer motor, and it's usually not an issue. Here, the first stage motors have a lot of internal structure and a lot of motors above them to lift. Less so the subsequent stages. And sure, there are five of them doing that heavy lifting, but still, the lifting is bound to be really heavy indeed.

In the end, we shall see. (We hope.)
 
jqavins said:
:)
Include in your mind sim that it's really heavy. We know that, in normal two stagers, the booster motor has to lift the sustainer motor, and it's usually not an issue. Here, the first stage motors have a lot of internal structure and a lot of motors above them to lift. Less so the subsequent stages. And sure, there are five of them doing that heavy lifting, but still, the lifting is bound to be really heavy indeed.

In the end, we shall see. (We hope.)
Click to expand...
Yeah, there is that. But also, @lakeroadster has taken adequate speed off the rod into account, so it can't be that heavy for the total power. Nonetheless, I look forward to the flight attempt.

I do want to highly recommend something another TRF'er said--you can either watch the launch or film the launch but not both. I missed a lot of detail on the Windmill launch because I was trying to keep it in frame. Recommend having someone else (or maybe nobody) film while you track the highest stage.
 
boatgeek said:
I do want to highly recommend something another TRF'er said--you can either watch the launch or film the launch but not both.
Click to expand...
That TRF'er was me and I stand by it.... although there could be a partial exception if you have a camera with a good enough viewfinder AND you are standing far enough away that you can track it AND you have a good enough zoom that the rocket isn't a tiny speck in the viewfinder. Filming with my iPhone, none of those conditions ever apply to me.

For many of my flights I've adopted a hybrid strategy where I point my phone at the pad, and then when it launches lift the phone up to track it but don't try very hard, and once it's up in the air put the phone down and watch. That gets me very good (albeit brief) footage of the rocket lifting off the pad, which is nice, but then I watch the rest of the flight with my eyes. Even then it's a compromise, but it works for me for the most part.

For a rocket like this, though, the staging is where it's at, so it would be ideal to have the whole ascent on video, which means having someone else do it for sure. If there's someone you trust to do it right. ;)
 
@boatgeek @jqavins @sr205347d

What I've been doing is place one camera on a tripod. It's set to record the rocket leaving the launch rod and up to about 25 feet.

I also have another camera that I hold. I'll do the countdown, camera in hand, and my wife actually launches the rocket. I visually follow the rocket off the pad using the LED screen on the back off the handheld camera that is in video mode, I then take my eyes off the LED screen and just let the camera keep recording while I watch the rocket until it ground hits.

I've never had much luck zooming in while the rocket is in flight so I don't even try anymore.

It would be nice to have a few other folks tracking and filming... but that likely won't be the case. It'll be the wife and I.
 
lakeroadster said:
All systems read nominal... we are go for throttle up.
Click to expand...
Yikes! That brings back memories.

More like an LCO call out:

Fire crew: GO!
Video crew: GO!
First stage crew: GO!
Second stage crew: GO!
Third stage crew: GO!
Fourth stage crew: GO!
Oddroc Scumbag hiding behind the equipment trailer with his head up: G-G-GOOO! :)
 
lakeroadster said:
I tell ya... When Armstrong says "Tranquility base here. The Eagle has landed" ... I've heard it a hundred times.. and it still puts a lump in my throat and raises the hair on the back of my neck.
Click to expand...
The 1202 alarm one really gets me. When the movie came out in theaters a couple of years ago, I found myself glued to the fuel gauge, even knowing how it ended.

My favorite in the song is the “keep the chatter down” line since there no other chatter at that moment.
 
lakeroadster said:
I tell ya... When Armstrong says "Tranquility base here. The Eagle has landed" ... I've heard it a hundred times.. and it still puts a lump in my throat and raises the hair on the back of my neck.
Click to expand...
Soon to hear "South Park base here, all stages have landed." Will the model rocket reaction be the same? :)
 

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