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Gemini Titan 1/35 build

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Charles_McG

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I've shown some pictures in my 1/35 Mercury Atlas thread, but I decided it's time to fork the threads.

I'll do some catch up later - but here's tonight's progress.

ImageUploadedByRocketry Forum1495595914.510537.jpg

I think the 6" flexie turned out too small, though I do want a speedy descent - with just the capsule. I have carbon rod handy for an 8".
 

Charles_McG

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Recap:

The Estes 2111 Mercury Atlas inspired me to start working on my own Rocket Garden. The 1/35 scale is tough to duplicate, but I've started winding my own paper body tubes for the 3.44" size.

Side by side, the early vision:



The Gemini capsule is a Sandman creation. I used the paper model from the Lower Hudson Valley Challenger Center (1/48 scaled to 1/35) as a guide.



I made a mistake and cut the windows square to the long axis, rather than sloped. I fixed it later with epoxy putty. Seen here during filling/sealing. You can see that I also filled in the adapter skirt detailed with cardstock covered balsa. The skirt is a cardstock transition from BT80 to T344 and is foam filled with an ounce of sinkers embedded (sims suggested the need for a little more nose weight)





Down at the other end, the motor mount is progressing. The high school's laser cutter makes centering rings easy - though the OD was a couple hundredths off - I made it up with cardstock. 3.5 degrees, coming up.

 

Charles_McG

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Well, it turns out that spiral filling your home tubes requires more surface prep than I did. Sanding the wood filler fuzzied up the paper - which the primer made stand on end. Several sand and primer later, I'm almost ready to move on.

I did find that wood hardener on the paper -before- the sand and prime helps.

Tonight pictures show the capsule and adapter, pretty much wrapped up. I tried doing fine detail decals - but they don't show on the black. The United States is done on white decal paper with a printed black background. Blends in okay.

The band around the adapter is the stick from the flags they use to mark utility lines in the back yard, sanded into a half-round.

ImageUploadedByRocketry Forum1496369683.439142.jpg
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ImageUploadedByRocketry Forum1496369709.615902.jpg
 

Charles_McG

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While waiting for the primer to dry on the second stage, I was perusing various Gemini plans. I realized I was nearly cloning the Estes K-11 kit. So I'm going to use it for a few more details.

Like these by the motors.

ImageUploadedByRocketry Forum1496432839.855731.jpg
 

Charles_McG

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Here she is, dressed out and painted. Now I have to go backwards and retrofit fins on. And then put in recovery.

ImageUploadedByRocketry Forum1498134106.538456.jpg
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ImageUploadedByRocketry Forum1498134137.719271.jpg
 

aerostadt

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Looks really good!! Did you do something special for the capsule windows? It looks like one of the system tunnel lines are the launch lugs. I would think that retro-fitting the fins will be a challenge.
 

Charles_McG

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The capsule windows are painted gold. Seemed niftier to make it look like reflected sunlight than a more realistic 'fogged with astronaut sweat'

Yes, the opposite side line is 1/4" ID tube, though to be honest, the friction from such a long line is higher than I like. I'll try 3/16" rod, and I may just put rail guides on.

Once I decided not to try a clear fincan, like the Estes KS21, I put in a little more surface detail on the bottom. I DID forget to put masking down at the planned fin locations before the first coat. Whoops.
 

LithosphereRocketry

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That's a nice looking rocket, especially the LR-87ish motor mount... I don't suppose there are too many Aerozine/NTO model rocket motors, but other than that, I like it!
 

Charles_McG

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Fins.

These gave me trouble. I glued the wrong edge down on -two- of them. Got epoxy on my nice clear fins.

ImageUploadedByRocketry Forum1498867295.474721.jpg
 

aerostadt

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In this picture I cannot see the defects, so things look pretty good. Working with clear plastic see-through fins has it's challenges no matter what the scale. Are these through-the-wall fins?
 

Charles_McG

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It will look great from launch pad distance.

The fins are just surface mounted. I'm not planning on pushing this rocket hard.
 

crossfire

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Charles very nice work. See you at the Bong.
 

Charles_McG

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Here's the pad shot. Unfortunately, one of the two D12s didn't light. It turns out I botched the igniter insertion and ended up with a short ahead of the plug.

Only minor damage - she'll fly again.

ImageUploadedByRocketry Forum1501503668.877506.jpg
 

Daddyisabar

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Just have the old German dudes bundle up some surplus Army Redstone missiles for the first stage. All the money went to the NAVY for Vanguard!
 

Charles_McG

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Musk: clustering three boosters turns out to be hard.

von Braun: Ja! Ve stuck -nine- together. 50 years ago.
 

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