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Model Rocket Building Blog

ASP D Region Tomahawk Build, Part 1, Parts
I've always like the D Region Tomahawk, a clean looking sounding rocket. The first on I put together was the old Competition Model Rocket version. I remember (unsuccessfully) trying to emboss rivets on the upper bands. This Aerospace Specialty Products kit should be much easier. Smaller with less ...
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ASP D Region Tomahawk Build, Part 2, Shock Cord & Engine Block
That craft stick is used to apply glue inside the body tube. Mark the depth for the glue bead. Apply a drop of glue and rotate the stick end in the body tube. It'll probably take a few applications to get a line of glue all the way around the inside. The supplied yellow tube is used to push the ...
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ASP D Region Tomahawk Build, Part 3, Fin Shaping
Here's two fins, one right off the sheet and the second after light sanding with 400 grit on a block. The laser "smoking" should be taken off. You can round the leading edges but I'm going for the scale wedge tapers on the leading edges. TIP: To make the fin marking easier, extend the lines beyond ...
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ASP D Region Tomahawk Build, Part 4, Fin Shaping
When sanding a fin taper it's hard to see the edges on basswood or balsa. Here's one way to give a high contrast for a sharper sanded line. You'll be using a permanent marker on the leading edge. You don't want the ink to go deep into the wood, so the edges are sealed with CA glue applied with a ...
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ASP D Region Tomahawk Build, Part 5, Seam Fills
The nose cone is lightly sanded before filling. TIP: Don't round off the tip! Press the nose cone tip into your fingertip so the sandpaper can't roll over the top. TIP: A bit of the CWF was brushed over the shoulder edge all the way around the base of the cone. For now, just brush CWF near the ...
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ASP D Region Tomahawk Build, Part 6, Filling the Nose Cone and Fins
Both the tube and nose cone got a good single coat of Duplicolor Primer/Filler. Before sanding is on the left, after sanding is on the right. The fins were set on a piece of cardboard. Hold them down on some masking tape, sticky side up. The root edges are together to keep the paint out. Basswood ...
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ASP D Region Tomahawk Build, Part 7, Fin Gluing and Fillets
The rear root edge fin cut is set 1/4" up from the rear end of the body tube. To make it easier to line up, a pencil line was drawn at the end of the root edge. Fins and the launch lug were glued on. Notice the fins aren't even with the end of the body tube. On a small model like this I used wood ...
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ASP D Region Tomahawk Build, Part 8, Paint and New Paint
I've finally given up on Rustoleum 2X paint! Over the past year, their gloss white has been iffy - some cans seem to be fine, others spatter or spray a rough coating. Even if you wait for the paint to totally dry you can still get crazing wrinkles. Maybe they've changed their formulation. It was ...
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ASP D Region Tomahawk Build, Part 9, First Mask
Here's the D Region Tomahawk picture from the ASP website. Three black fins, one red fin. The upper body tube has two red sections. Above the nose cone shoulder is a brown band. The nose cone gets a brown tip. On the left is the Scotch tape mask. The wide red band goes down 1" from the top of the ...
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ASP D Region Tomahawk Build, Part 10, More Masking
A brown band goes on the base of the nose cone, 7/32" above the shoulder lip. On the left the nose cone has been lightly marked with pencil in four locations around the nose cone. I use more than one single mark, it makes alignment of the tape line much easier. To the right is the Scotch tape mask ...
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ASP D Region Tomahawk Build, Part 11, Fin Masking
The D Region Tomahawk has three black fins and one red fin. Here's the mask for the single red fin. On the left is the Scotch tape surrounding the root edges. In the second picture a grocery bag is taped covering the rest of the model. This is the mask for the three black fins. I had good lines on ...
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ASP D Region Tomahawk Build, Part 12, Fin Plates
I probably could have sanded and shot the black root edges again but thought I'd take the easier way out. Most of the root edges will be covered by a fin plate decal so it doesn't have to be perfect. I used a fine point Sharpie right down the root edge fillet. It took a few passes to get a dark ...
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ASP D Region Tomahawk Build, Part 14, Folding and Cutting the Fin Plates
Emboss the fold lines before cutting out the fin plates. It's easier to make the fold lines while the pieces are still on the larger paper. I'm using the tip of a butter knife, the flat area above any serrations on the cut side of the knife. Most of the straight lines were cut with a new X-Acto ...
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ASP D Region Tomahawk Build, Part 13, New Fin Plates
I looked back at the Estes Tomahawk instructions and Peter Alway's Rockets Of The World for more information on the fin plate shape. The plates are slightly raised above the body tube so I decided to print them on 60 lb. card stock. This lighter card stock will also allow the plates to be folded ...
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