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OKTurbo’s Arapahoe X project

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OKTurbo

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I wasn’t sure how I was going to do this. Just build it then post details when I’m done, or start a post and let ya’ll go along for the ride.

I decided to go ahead let you see the process.

Rather than just go with an upscale of the original Thrustline Arapahoe E, I thought I would try an updated high power Arapahoe. It’s now just a pile of parts and some sketches. Will probably start by fiberglassing the tubes. Parts are from LOC, Sandman nosecone, Aeropack retainer, etc.

I have some ideas on the graphics, but chime in if you have ideas / thoughts / criticism. I’m feeling it should be flat black, gloss black nose cone, maybe some gloss grey highlight stripes, big X on the logo will be yellow or bright orange.

Here’s the start..
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mbeels

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I love those graphics you drew up. I like your variation on the Arapahoe, with the angularized lines, very original! That will look fantasic!
 

neil_w

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Oh, this should be fun. Great drawings, agree with Marten that your angular mods should look great.

That nose cone is a beauty, what kind of wood is it?
 

OKTurbo

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Oh, this should be fun. Great drawings, agree with Marten that your angular mods should look great.

That nose cone is a beauty, what kind of wood is it?
Thanks Neil. The nosecone is balsa. I gave it a good coating of Smiths penetrating epoxy several weeks ago to harden it. I may cover it in fiberglass for a little extra strength.
 

neil_w

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That's a heck of a chunk of balsa. Can't tell is that 2.6" or 3"? Then I'm done with questions for now and will await the build. :)

Paint scheme idea sounds good, although that's where I'd normally start previewing in OR so I'd know for sure.
 

Tobor

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I dig your interpretation of the Arapahoe. Graphics and all. Subscribed!
 

OKTurbo

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Did a little work in this project. Fins are cut. First time using an Aeropack tailcone retainer. Get it figured out before I mix the epoxy.
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OKTurbo

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Yep...

1/8”, 5-ply voidless birch aircraft plywood. The good stuff. I used balsa for the conduit/strake on my big Stiletto. Even after hardening with CA it got all kinds of hanger rash. The plywood should hold up better. They should also add a ton of stiffness to the tubes. That’s why I’m not fiberglassing it.
 

OKTurbo

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Current state. Some pics of the strake details.
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neil_w

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Ooh, the notches in the strakes are an interesting touch. Are they going to stay open like that or do you have further plans for them?
 

OKTurbo

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Ooh, the notches in the strakes are an interesting touch. Are they going to stay open like that or do you have further plans for them?
I’ve had a couple of ideas, but i’m not sure how they would look.

If I thought I could pull it off, i’d put Clear plastic with some mini led lights in there. Orange plastic that lights up would be cool.
 

OKTurbo

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Here’s what I’ve gathered. Can’t remember where I got these...I think it was an after Christmas sale last year. The package has a ‘try me’ button that lights them up on 3 coin cells. There is a good space under the tailcone retainer I could use. I might give the lights a try....
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OKTurbo

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The strakes are glued on. Fins and MMT just dry fit. I still need a plan on the recovery harness before I glue in the motor mount. This is the progress for today....time to get the turkey in the oven.
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OKTurbo

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Fin can is together and in the body tube. I went with old school titebond II wood glue on this one. Recovery harness will be 1/4” tubular Kevlar. 1/4” tube to make it easily replaceable. I will tie a loop around the mmt under the tailcone retainer.
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