RE: MUBU II F5D Build

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RE: MUBU II F5D Build - 9/3/2012 6:51 PM

D.E.

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Made a winding board. wind the carbon tow around pegs and you have custom tapered spar caps.

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Post #: 76

RE: MUBU II F5D Build - 9/8/2012 5:26 PM

D.E.

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Made some wing skins. The connecting tabs will be removed later. The layup will be 5.7 oz. spread tow dbox 1.4 oz outer glass then wood skin inside for first vacuum. The second layup will put carbon tow into spar relief area with .75 oz glass on top of all then vacuum.

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Post #: 77

RE: MUBU II F5D Build - 10/28/2012 10:01 AM

D.English

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Kind of stalled out on Mubu for the moment. I was approached by the guy that designed the wing and the saw prop from Germany and he asked if I wanted to work with him on a new design that is kind of risky but with big payoffs if it all works, I said sure!

It is a real different design that his computer models show being about 4 seconds quicker and 15 mph faster than current models, again that is if it all works. That would put it down into about 48 or 49 seconds on FAI course.

I am working on a test model that will be finished in a couple of weeks and will meet with Travis Flynn and Troy Peterson to start working out some of the systems, pretty fun stuff.

being I cant fly Q40 stuff around here and also cant afford to do both I am selling off some of my Q40 stuff, I know about the classified adds but this is kind of Q40 related only. I have,
4- DS3421 servos
1- DS3517 mg servo
1- DS368 BB servo
1- NES 3121 servo
1- NES341 servo

and 6 Q40 motor mounts

400.00 shipped in US

I will keep informed here on progress of new model and am hoping to use for US team in Austria in 2014.

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Post #: 78

RE: MUBU II F5D Build - 4/15/2013 9:05 PM

D.E.

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Well I have been working on another F5D model that is very complicated, we have flown some test planes that have had mixed success and I am feeling it may be a bit to complicated for the rigors of completing a full race of flights without a problem. I am going to continue working with it but want to try out this wing also. I have made a pod mold for a pusher set up as that is what this is designed for and have a hobbyking motor/esc set up for a speed of about 150 to 160 mph. I am laying up a light model that we hope to fly at the next Whittier EF1 race.

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Post #: 79

RE: MUBU II F5D Build - 4/16/2013 3:32 PM

BadThumz

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From: Livermore, CA, USA
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Dave, you do some of the most interesting modeling. I enjoy it to the max. Can't wait to see this finished.

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Post #: 80

RE: MUBU II F5D Build - 4/21/2013 10:50 PM

D.E.

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Thanks BT,

I vacuum bagged the carbon spar caps in the slotts in the wood skin then measured and cut spars and closed the molds, tomorrow is christmas if it comes out of the molds...

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Post #: 81

RE: MUBU II F5D Build - 4/22/2013 5:00 PM

D.E.

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Out of mold, 250 grams with pod should be about 650 grams ready to fly with hobbyking set up. Quality is okay, next one will be better. Now to paint some trim, will be very patriotic.

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Post #: 82

RE: MUBU II F5D Build - 4/22/2013 9:01 PM

BadThumz

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If this works out, which I expect it will, I will need one!

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Post #: 83

RE: MUBU II F5D Build - 4/22/2013 9:38 PM

D.E.

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I got further than I thought I would today, next weekend I will start to get it ready to fly... Hope to have parts machined for my other project by the time this is flying

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Post #: 84

RE: MUBU II F5D Build - 4/22/2013 10:18 PM

daven

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Awesome, looks like a boomerang!

Nice work.

_____________________________

Dave Norman
29w

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Post #: 85

RE: MUBU II F5D Build - 4/22/2013 10:54 PM

BadThumz

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Dave, beautiful.

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Post #: 86

RE: MUBU II F5D Build - 4/28/2013 11:31 PM

D.E.

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Getting ready to fly, Installing servos, loading pod with drive stuff, cutting surfaces loose and gluing pod to wing. I hope to fly next weekend unless I decide to build a folding prop mold with the 7/10 prop I have. I am afraid this will break a prop every time it lands without the ability to fold.

This pod will only be used a few times as the final F5D version will use a different motor and drive, this will let me know if it flies with cheap parts at risk.

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Post #: 87

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