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Bengalensis    1,973

Time has finally come to dig into that big box of Dragon 1/72 Saturn V that I bought as soon as it was released, in early 2013 I think it was. It's been in the stash for much longer than I first planned (how unusual...) and it's quite a long time since I build Airfix 1/144 Saturn V, so it's not a moment to early now.

 

Here we have the box, and a lovely size of a box, isn't it.

 

SV1.jpg

 

There is quite a lot of plastic in the box for a start, but there was still room in the box... As I've had the kit in my stash for a while, and as I'm quite attracted to the subject and the whole Apollo era, I have spent some time filling up my box with additional stuff as I've learned some of the Dragon kit's shortcomings. This is what my box contains today, a bit more than Dragon put there in the first place:

 

SV2.jpg

 

I've added parts over time as I wanted to make a real project of this. I first got a set of batted F1-engines for the S1-C stage in resin from LVM Studios.

 

SV3.jpg

 

Soon after I bought the complete decal set from CultTVman, drawn by Rick Sternbach. They look quite impressive on the sheets.

 

SV4.jpg

 

More recently I also decided to add the various resin parts available from Martin's Models to help with some of the corrections I want to make.

 

SV5.jpg

 

There's also a range of 3D-printed parts available from two designers via Shapeways, and as I had already thrown all sanity away (I'm quite good at that, and it's actually a habit...) I decided to add these to my available choices as well.

 

SV6.jpg

 

And that leaves the original content in the Dragon box, of which not an insignificant amount will be replaced, or modified...

 

SV7.jpg

 

I plan to make a longer project of this, most likely spanning over the horrible winter that will approach later and once again make life difficult for a couple of months. It won't be the perfect Saturn V build, but I plan to make a number of corrections to lengths and details of the various segments of the vehicle, using research and advise that people with a lot more knowledge than me have published.

 

Most of all I plan to enjoy the build and twelve in the atmosphere of the era when the Saturn V did the job of putting these brave men on the path to the moon. I hope you will enjoy the build too and you're most welcome put in some advice and ideas as I progress with my build.

 

I think this Saturn V will be the mission of Apollo 11, for obvious reasons, but I'm not fully decided yet. Actually all the missions would deserve a good model...

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roma847    729

Hello Jörgen, hi.gif

very interesting project, my Airfix 1/144 Saturn V is still in the cupboard and waiting for Apollo 11.  Bild

 

 

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Bengalensis    1,973

I will start with getting all the major parts prepared and corrected, and then assemble the stages, before turning to more details. First I glued all the tank halves together.

 

SV8.jpg

 

With that done I measured the length of all the parts to see what I have to modify, and then layed them all out in a row. These are the main parts I will use. All the grey sections have to be altered slightly in length. The bad thing is that most of them are too short.

 

The IU (Instrument Unit) and SLA (Spacecraft LM Adapter) on top I will probably build up from the clear kit parts with some 3D-printed details instead of the resin, as I think I want one quarter of SLA in clear to show the Lunar Module inside. On the other hand that might mean that I should also do a quarter of both interstages clear to show the engines of the S-II and S-IVb stages... The model will be possible to disassemble into the real sections though.

 

SV9.jpg

 

Here we have the S-IC RP-1 tank glued to the intertank structure. The RP-1 tank is apparently about 6 mm too short and the intertank structure 6,5 mm too long. They will pretty much even themselves out. My idea is to remove 6 mm of the stringers and smooth the seam, and then scribe a thin new seam 6 mm higher up.

 

SV10.jpg

 

The S-IVb LOX/LH2 tank is 8 mm short. I have a resin cylinder to replace it, but it seemed less work to correct the plastic than prepare the resin. I glued on a segment ring I will have no use for to add some material.

 

SV11.jpg

 

With the glue fully cured this was cut to length and sanded smooth. Not an insignificant amount of work, but no big problem.

 

SV12.jpg

 

The LOX tank for the S-IC stage is about 12 mm short. I'm trying the same method here, gluing a segment I won't use to get material to work with, cut back to correct length and sand smooth. This will be more work than the S-IVb tank and probably need some filler, but first the glue has to fully dry.

 

SV13.jpg

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Bengalensis    1,973

I got quite a lot of work done on the tank walls today.

 

To shorten the S-IC intertank structure stringers I first masked with a 6 mm wide tape and then put a sturdy Dymo tape above. I figured this would give me a protecting edge to cut and sand against.

 

SV14.jpg

 

The extra ring glued to LOX tank top was then cut to length and the necessary filler sanded smooth.

 

SV15.jpg

 

After a bit of cutting and sanding work and some filler I had a 6 mm longer RP-1tank and 6 mm shorter intertank structure.

 

SV16.jpg

 

The S-II LOX/LH2 tank is about 6 mm short, but the new resin aft skirt includes a longer bit of tank section. I figured I would adjust the length of that resin piece to give me what I want. There will be a lot of filler and sanding, but the tank wall seems are in need of that anyway.

 

SV17.jpg

 

All the resin parts require a good deal of cleaning, filling and adjustment. This one was fairly easy.

 

SV18.jpg

 

The S-II LOX/LH2 tank wall seams done.

 

SV19.jpg

 

The two pieces joined and seem filled. The fit was less than perfect and it will take a bit of work.

 

SV20.jpg

 

I couldn't resist stacking up the S-IC parts; thrust structure/aft skirt, RP-1tank, intertank structure, LOX tank and forward skirt.

 

SV21.jpg

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bootneck    2,072

Hi Jorgen,

 

If you want to get a little bit of extra detail then check out the plans HERE.  You can download them in Hi-Res by using the link at the bottom of the page.  There is also detailed information on other systems and missiles at that site and well worth a look around.

 

Mike

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Bengalensis    1,973

A bit more progress. The bottom seam of the elongated S-II tank is finally done after a few rounds of filler and sanding. With that all the major tank bodies are done.

 

SV22.jpg

 

I then turned my attention to the S-IC forward skirt resin part, it needed some clean up and filling. The exterior is done here.

 

SV23.jpg

 

The interior needed more work. Quite a lot of air bubbles needed filling and excess resin from mould bubbles removed. While the filler was curing I started work on the LOX-dome that will go inside the forward skirt.

 

SV24.jpg

 

An hour or two of therapeutic fine sanding work later the inside was also ready for primer. I will probably have to paint the inside and the dome before gluing them in place to avoid spraying paint down into a hole, something that never really works for me.

 

SV25.jpg

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RichO    2,015

A lot of prep work to do here, but things look great so far.

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Just curious here ... and maybe i missed it. But i am curious as to how tall this Saturn will be when complete ? Including the very long probe structure they had mounted on top of the capsules nose ? 

Edited by Corsairfoxfouruncle

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Bengalensis    1,973

@RichO It does indeed need a lot of preparation to come together. I hope it will be worth it in the end.

 

@Corsairfoxfouruncle It should finish at a total height of almost 154 cm if everything works out. We'll see how close to that I will arrive.

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Gimme Shelter    1,811

fantastic - another large Mighty Saturn V on the forums production line - loving every micronic element of this build from the onset - resin, 3d yummies (bet they cost you a packet and dont pretend to your Mrs they were cheap), batted engines - yes, yes, yes - this is on my radar B I G  time..

 

super dooper, 

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Eric Mc    1,308
On ‎15‎/‎09‎/‎2017 at 18:35, Corsairfoxfouruncle said:

Just curious here ... and maybe i missed it. But i am curious as to how tall this Saturn will be when complete ? Including the very long probe structure they had mounted on top of the capsules nose ? 

The "probe structure" attached to the Command Module is the Launch Escape Tower - which was a powerful solid fuelled rocket used to yank the capsule off the top of the rocket if the Saturn V started to misbehave during launch. Luckily, it never had to be used on any Apollo mission, although it came close during the Apollo 12 launch when the Saturn V was struck by lightning.

 

The Launch Escape Tower was jettisoned at about 4 minutes into the flight as by that point the entire rocket had climbed to an adequate height (about 50 miles) so that the Command Module could separate and parachute to safety without assistance from the escape system.

 

The Dragon Saturn V is a very impressive model when it is completed (I've seen it displayed at a few shows) but it does seem to have a number of accuracy issues which is a pity considering that it's a fairly recent moulding.

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