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If you build one, keep in mind that the only thing I kept from the original plans is the outline. Everything else is changed.
The door is simply cut out. The bottom of the fuse is curved there, so the door itself is curved but the hinge is tape only on the back half. There are 1/4" sq front and rear. The front one rubs against the side of the gear leg as it drops, pushing it all the way open. There is a short piece of string CA'd to the inside fuse about the height of the retracted leg, and to the door at the bottom (when open) edge. As the leg retracts, it contacts the string and pulls the door closed. Super simple! (Things work best that way). The main doors will simply be attached directly to the legs. Attached are some stills. A video of them operating is here: http://www.montanadesign.com/planes/...e/dscf7903.avi The tape was just something we did real quick at the field. The concept works great, I just need to clean it up a little. Andy |
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I measured outside dimensions on the paper with a ruler, then put them into the CAD package. I only used the outlines and the hinge lines. I then used Profili Pro 2 to create the wing panels and ribs (NACA 0015 airfoil). The fuselage side view started as the same airfoil, then was adjusted in thickness to fit the equipment I wanted to install. I never actually drew the formers - they are just rectangles with recessed areas for the 1/32" ply doubler, and with the corners knocked off and sanded to fit snugly against the 1/2" triangle stock in the corners. There's only 3 (firewall, in front of fore spar, and against the TE).
It is an almost-complete plan, and obviously adequate for somebody to build from. As for sharing, I haven't decided what I plan to do yet. Like dozens of my other designs, probably nothing will be done. I am happy to have unique airplanes ![]() You could always buy the plan CD-044 from www.FlyingModels.com (you may have to send an e-mail to Lynn to get it), have Staples/Kinkos scale it to 144% (I think that's the number), and build from that. I believe that the original designer (Joe Beshar) just published an EDF version in Model Airplane News recently. That would be another place to look. Andy |
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Joined Aug 2005
2,602 Posts
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Quote:
IMHO it's not the looker the Shrike is. http://media.radiocontrolzone.com/ma.../TheStrike.pdf |
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Except for the White Electrician version, from the various original plans I have in my collection all he ever did was basically scale the dimensions linearly. If you have the plans for a smaller one, just take them to Staples and scale them up. You might have to add ribs, but the basic structure would be the same.
I've seen that on links tying it to the 40-size (43"), although it looks larger to me (.60?) I gave up fuel flying a few years ago, otherwise it would be real tempting to build a big one. I just couldn't afford to feed it electrons at that size! Maybe somebody could identify the engine, or just ask Joe (go back a year or two and his contact info is in Model Aviation). Andy |
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Personally I would love to get one around 43". Looks like a great conversion. Tempting but my build list is soooo long already.
One thing I have found with scaling up plans is there needs to be a bit of redrawing on wood sometimes. Usually not too much of an issue though, just use smaller sticks and center them in the drawing. |
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There's a kit on e bay from the same guy I bought it from (therocketman). Just search that site for "Lanier Shrike" (no quotes) and it should pop up. The item number is 350367034865 in case that helps you any. It's the 35" version (10-15), same size as I just described building in this thread.
I hope to get some more flying in this weekend. My son will be home from college and we both need a little stick time. Andy |
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I finally got some time to finish up the Shrike retracts. The main doors are added, and the nose door hinge now uses Robart Hinge Points (the micro size). In the attached photos you can see the following details:
The covers have the same pattern as the checkerboard bottom. This was put on while doing the original covering, aligning the pattern so that when the doors were closed, the checkers would line up perfectly. The nose door hinge points are located pretty far away from one another so as to provide more strength and stability while the doors are open during takeoff and landing (it is not a slow speed plane!). The center of the hinge point is about 1/16" outside the airplane, and extends into the fuselage in the wood block that was already there. They go in at about a 30 degree angle from vertical because the other side is angled down into the door. They are also epoxied into place and then trimmed off. Care had to be taken so that the moving leg wouldn't snag on the hinge point during operation. The main doors are kept aligned by two U-shaped 1/8" ply brackets which are epoxied into place. The distance off the leg is set by appropriate layers of servo tape before gluing. Epoxy is applied, tape holds them in position, and then the door is closed and the tape tautened so that the U-brackets are tight against the door. Note that you need to remove the covering before epoxying into place. Finally, the servo tape stays in place even after we're done. It is what actually keeps the door from moving up and down on the leg. I've been getting more time on this plane, and I'm really starting to love flying it! It's very quiet because of the low drag, and very jet-like in performance. I just built up some 4S packs (I've been flying on 3S, about 75-80 MPH) this weekend and hope to get it out soon with the extra power. Next one will be 40-sized (43")! Andy |
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