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Old Sep 22, 2013, 04:31 PM
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White Knight 2 for MMB

Originally I had planned on doing an XF5U, but I want to go a bit weirder. Should end up in the 3-4ft span range. Fuselages will likely be hotwired EPS. Propulsion will be 4 6mm pushers.

Still fiddling with scale, to see what will work best, should get building this week.

-Adam
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Old Sep 22, 2013, 04:57 PM
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I like it. 3-4 foot span sounds very interesting. Finally somebody else is taking this "multi motor" to mean something other than "2."

This project will be fun to get within the weight. I would imagine there'll be some thin carbon in the center wing.
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Old Sep 22, 2013, 05:21 PM
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The beauty of the outboard fuses and stabs is that they significantly reduce the torsion and bending loads at the root. I'm going to see if I can get away with as little structure as possible and really span load it. Each fuse will have its own RX and battery. Hopefully I can come in on weight, but if not, I'll still have a cool looking plane.

Adam

And of course there will be a little SS2 to go with it in the future...

Quote:
Originally Posted by reylf_gnijieB View Post
I like it. 3-4 foot span sounds very interesting. Finally somebody else is taking this "multi motor" to mean something other than "2."

This project will be fun to get within the weight. I would imagine there'll be some thin carbon in the center wing.
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Old Sep 22, 2013, 05:34 PM
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Crashing at 8600ft
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oops duplicate post...I don't know how to remove it.
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Old Sep 22, 2013, 05:38 PM
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Crashing at 8600ft
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The white knight II is definitely a unique airplane! That is the first twin fuselage, jet powered flyer I have ever seen. Before today, I didn't even know that such a thing existed! You should go for 4x 20mm EDF's! LOL! Try cramming all of that gizmo into a 50 gram airframe! I wimped out and went for the minimum number of engines. Great idea for a entry into the MMMBC! Good luck!

PS: do you know why they designed and built this airplane? It seems like it is purpose built. Is there a cargo pod that attaches to the middle, under the center wing? Is it designed with an open middle wing to carry odd sized/shaped cargo? That is the only reason I can think of, unless it was built just because it could be done?

edit: It IS a cargo airplane! It is used to lift the Virgin spaceship2 to launch altitude! You learn something new every day! I guess there are some drawbacks to not having TV in my house. I read about the Virgin space-plane, but I had never seen pix until I wikied it.
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Old Sep 22, 2013, 05:38 PM
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Ambitous choice - I'll be watching. Please tell me you're going to build a matching Space Ship 2?
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Old Sep 23, 2013, 10:55 AM
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Found a nice papercraft set of plans for the WK2, so I think I'm going to go the rolled durobatics route for this build, with printed tissue paper for the markings. My test fuse went together very quickly, and really looks the part. Lots of little details I couldn't get if I tried painting. For reference the wing is about 7g and the fuse about 5g, I think the weight limit is very doable at this point.

-Adam
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Old Sep 23, 2013, 11:25 AM
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Very impressive.
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Old Sep 23, 2013, 04:37 PM
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mocked up the second fuse
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Old Sep 23, 2013, 05:30 PM
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What? Mocked up? Stick some power and controls on it and you're done, surely? Where was the kit from for the fuses?
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Old Sep 23, 2013, 07:04 PM
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I think that those are just paper mock ups, not the actual printed foam.
Looking great, and love the size your shooting for
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Old Sep 23, 2013, 07:35 PM
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Quote:
Originally Posted by derk View Post
I think that those are just paper mock ups, not the actual printed foam.
Looking great, and love the size your shooting for
Correct. the first one was regular paper on durobaics, to see how easy it was to form, but the second is just paper. I ordered up some nice tissue, so hopefully I can start on the real one later in the week.

Here's the paper craft link: http://www.paper-replika.com/index.p...&Itemid=206198

The fuse profiles seem good, but the tails are a bit undersized, so I'll be using those for the fuselages and markings, but the three view I found for the flying surfaces. When it's all done, I'll post the CAD for the drawn parts, and the enlarged patterns for the parts that came from the paper craft site.

I'm really liking how this is shaping up, hoping it has the same sort of presence in the air that my big Daedalus has.

-A
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Old Sep 24, 2013, 05:21 PM
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Why not print on the Durabatics Adam?
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Old Sep 24, 2013, 07:38 PM
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I was going to go that route, but only have access to laser printers. Plus I want to do some of the decals on the wings which need to be full thickness depron.

Going to try the direct printing method sometime though.

A
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Old Sep 25, 2013, 06:44 AM
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Wow! I am struggling to think of a more difficult subject to model at under 50g.

It makes my flying pizza base look pathetic. If it works well I 'could' do a Bugatti Model 100, but somehow I doubt it will work that well.

I can't wait to see your finished model, good luck with it.

Rob
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