INTRODUCING OUR  HOLIDAY BUSINESS BUNDLE
LEARN MORE

<div id="cookie_notice" class="sw-cookie-notice sw--padding-vert-4 sw--padding-hor-1 sw-dms--box-shadow--big"> <div class="sw-dms--color-white sw-grid-flex sw-grid-flex--wrap-mob sw-grid-flex--wrap--tab"> <div class="sw-cookie-notice__text--mob sw--padding-left-8 sw--font-size-14 sw-grid-flex__cell-5-7 sw-grid-flex__cell-1-1--mob sw-grid-flex__cell-1-1--tab"> We use cookies to offer you a better browsing experience, including personalized advertising. By continuing to use the site you agree to their use. <a href="/legal/privacy-statement" target="_blank">Learn more</a> </div> <div class="sw-grid-flex__cell-2-7 sw-grid-flex__cell-1-1--mob sw-grid-flex__cell-1-1--tab"> <a class="sw-dms-button noty_close sw--padding-hor-7 sw--position-absolute sw--position-right sw--margin-right-13 sw--hide-mobile sw--hide-tablet" data-sw-set-cookie="euCookie">OK</a> <a class="sw-cookie-notice__btn--mob sw-cookie-notice__btn--tab sw-dms-button noty_close sw--padding-hor-7 sw--margin-vert-3 sw--hide-desktop" data-sw-set-cookie="euCookie">OK</a> </div> </div> </div>

<div class="sw--display-block sw-dms--color-white" style="background-color: #1e2740"> <div id="emailModalContentContainer"> <span class="noty_close sw--position-absolute sw--position-right sw--padding-top-3 sw--padding-right-3 icon-cancel sw--opacity-8 sw--z-index-10"></span> <div class="sw-row"> <div class="sw--position-relative sw--display-block sw--padding-3" style="min-width: 380px"> <p class="sw--font-size-16 sw--margin-bottom-2 sw--margin-right-6">Sign up to hear about special promotions</p> <form action="/register/email-signup" class="sw--position-relative" data-confirmation="emailConfirmationModal" data-sw-email-modal-form> <input type="text" class="sw--input-height__medium" style="width:60%;" placeholder="Email address" name="email" /> <input type="hidden" class="" name="location" value="/product/JQLZJXHSV/sr-71-blackbird-engine-spike-1-72" /> <input type="hidden" class="" name="confirmation" value="emailConfirmationModal" /> <input type="submit" class="btn-primary sw--margin-left-1" value="Subscribe" /> <div id="emailModalFormError" class="text-error" style="display:none"></div> </form> </div> </div> </div>

Click and drag to rotate
SR-71 Blackbird Engine Spike, 1/72 3d printed

DIGITAL PREVIEW
Not a Photo

SR-71 Blackbird Engine Spike, 1/72 3d printed
SR-71 Blackbird Engine Spike, 1/72 3d printed

DIGITAL PREVIEW
Not a Photo

SR-71 Blackbird Engine Spike, 1/72 3d printed
SR-71 Blackbird Engine Spike, 1/72 3d printed

DIGITAL PREVIEW
Not a Photo

SR-71 Blackbird Engine Spike, 1/72 3d printed
SR-71 Blackbird Engine Spike, 1/72 3d printed

DIGITAL PREVIEW
Not a Photo

SR-71 Blackbird Engine Spike, 1/72 3d printed
SR-71 Blackbird Engine Spike, 1/72 3d printed

DIGITAL PREVIEW
Not a Photo

SR-71 Blackbird Engine Spike, 1/72

$32.68
3D printed in matte translucent plastic that showcases fine and intricate details.
QTY
Product Description
PLEASE READ:

This Engine Inlet Spike is designed for either Testor/Italeri's or Revell/Monogram's 1/72 scale Blackbird kit, and goes with my SR-71 Inlet (Testors/Italeri version, Revell/Monogram version).

I've designed the Engine Spike to be adjustable in length, as on the real article. Also note the air siphoning holes just past the Spike's maximum diameter.  These would draw off thickening boundary layer at high mach numbers, drawing the air into the Spike body, and then expelling the air outboard, via the hollow cruciform struts connected the the bypass doors ahead of the engine face.  Also provided are are the air straighteners ahead of the turbine face, as well as the J58 turbine itself.

New to rapid prototype parts?  Here are some suggestions of how to handle Frosted Ultra Detail:

Surface preparation: For starters, you'll want to rinse the parts in acetone to remove the wax support structure (some always seems to remains behind, stuck in the nooks and crannies), and wax support structure residue. Note to use extreme caution in that there is the possibility of damaging the model at this stage.  What I did was to find a large enough Tupperware or equivalent, and pour in enough acetone to partially submerge, then used an old paint brush to brush on acetone in the areas not submerged. Do this 3-4 times, no more than 1 minute at a time, rotating it to submerge areas not previously, and then taking it out of the acetone "bath" in between.  Monitor the part the entire time to reduce the possibility of any part damage from the acetone. Do this BEFORE you begin any assembly given the use of acetone and the donor kit's plastic; cleaning the parts once assembled to the donor kit will no doubt lead to tears.

Gluing: Use Cyanoacrylate glues to adhere the RP parts to the plastic kit, or RP parts to RP parts.

Painting: The Frosted Ultra Detail rapid prototyping produces some of the finer surface finishes. However, that doesn't mean it's completely smooth; there will be step/striations. As for how to deal with these striations, give the parts an initial sand to give the surface some teeth (400 grit), and then get yourself a good spot-filling spray primer. I'm a fan of Dupli-Color's Filler Primer; it can be found in the paint section of most auto part stores. Multiple coats of that, sanding between each, should eliminate the striations in the model surface.
Details
What's in the box:
SR-71inletx2
Dimensions:
7.15 x 9.35 x 1.7 cm
Switch to inches
2.82 x 3.68 x 0.67 inches
Switch to cm
Success Rate:
First To try.
What's this?
Rating:
Mature audiences only.
Sign In or Join to comment.
 
 
Logo

Hello.

We're sorry to inform you that we no longer support this browser and can't confirm that everything will work as expected. For the best Shapeways experience, please use one of the following browsers:

Click anywhere outside this window to continue.