Replies to This Discussion

Permalink Reply by eric on May 8, 2012 at 2:24pm

Yes its a closed profile, bolted to an X-bar from the sides and to the bottom plate. The X-bar is square allowing for the cables to pass through to the motors. I think (hope) it should be pretty stiff

I'm not quite sure about the layering yet. But I wouldn't go with any kind of open profile.

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Permalink Reply by Devin Johnson-Kinlaw on May 8, 2012 at 3:17pm

If you're making a mould you may want to consider blending the wings into the fuselage. Optimally, I would evenly flush the trailing edge half of the wing with the underside of the fuselage and softly fillet the overside of the wing with the fuselage. The objective, in my mind, is to reduce as much surface area as possible while retaining soft compound curves, since you seem to be taking a stylish approach. Everything else appears fairly designed. Good canopy and nose. I would additionally suggest rounding the wall rearward of the ducts. You don't want to separate the thrusted airflow too much. Might as well combine the jets to reduce any turbulent flow coming through from that concave transition belly.

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Permalink Reply by Devin Johnson-Kinlaw on May 8, 2012 at 4:21pm

No, no. I'm referring to your 3D drafted glider above. The quadcopter is fine. Plus, I don't have much to say about quads anyway.

Permalink Reply by eric on May 8, 2012 at 5:28pm

oops, oh man... wing, canopy, nose, I've been up too many hours lool. The bird is already so far from me as I said, I'm going with the quad project. But I perfectly understand your suggestions, thanks! The idea with the ducts is good, think I'm gonna do that soon...

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Permalink Reply by Brad Hughey on May 9, 2012 at 5:16pm

The fixed-wing is a very swoopy design, and I like it just for style and aesthetics alone.  I'll add my voice to the chorus that the nostrils for your ducted fans might need to be larger (I won't bore the audience by preaching yet again about disk loading).

Your quad is just as stylish, although I am interested in what data you collect on endurance with and without the protector rings (properly adjusting for weight, of course).

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Permalink Reply by eric on May 10, 2012 at 4:39am

Thanks, I agree with your comments about the fixed-wing.

I cant give you the quad data just yet. But I will keep you updated.

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Permalink Reply by eric on May 26, 2012 at 9:17am

Hey Brad,

I'm on weight data collection now. This is going to take a while as I must do some research because I'm not sure how thick the body should be. 0.5mm thick CF would make the body about 325g heavy, 1mm = 456g and 1.5mm 969g. So I definitely must be sure before I go on as this will have much affect on overall performance and strength. Still lots of work to do. Hoping I'll find some collaboration on the way. But I will keep my word and get the data asap...

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Permalink Reply by eric on May 25, 2012 at 7:31am

The body and frame design is about done. I've added the integrated tilt camera and dome to the body, payload space to the rear without compromising design by faking a "tail" and updated the arm design.
This is clearly an industrial purpose platform. The concept is to keep everything as integrated and protected from the elements as possible. There is lots of space in the side cavities for specialized electronics which allows for the design of special purpose builds. The bottom cover shell also comes in different sizes in order to keep any added electronics (extra batteries for example) covered that may extend out of the bottom of the 

frame

.

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Permalink Reply by Ace on June 14, 2012 at 3:52am

Dit you see the Durafly Zephyr V-70 from Hobbyking ? I wonder where they did get there inspiration.

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Permalink Reply by eric on June 14, 2012 at 9:45am

Nice, I like it. Well done...

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Permalink Reply by james sowell on June 14, 2012 at 10:04am

thanks and as long as u r going for cool swept wings ? the quad looks real nice also

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Permalink Reply by EyeintheSky on August 15, 2012 at 10:25am

 

I am new on this site and also working on a new airframe. I have been using google scetch as my a CAD program. I was wondering what did you use because the quality of your image blows mine out of the water. I would appreciate any advice you may have.

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