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« on: May 02, 2014, 03:13:08 PM »
Darshil Patel
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I have started making NASA UCAV X-47B last Sunday for participating in sweepstakes-2014.
I have added winglets from NASA X-48 design for more stability.
I m posting the design drawn on plastic corrugated sheet photo which I took on 27th April 2014, Sunday with newspaper.
I have plan to coat it with nylon cloth from old raincoat for better strength and look.
As work will advance I will post more photos.

20140427_111422-1.jpg
NASA UCAV X-47B for Sweepstakes-2014
* 20140427_111422-1.jpg (41.06 KB, 800x579 - viewed 373 times.)
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« Reply #1 on: May 02, 2014, 05:41:06 PM »
AnjanBabu
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I've always wanted to build the X48, drop it from a quadcopter and propel it using a small rocket.
Maybe your build is gonna help me out. Good luck! Thumbs Up
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« Reply #2 on: May 03, 2014, 06:50:00 AM »
Darshil Patel
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Thanks Anjanbabu.
There are difficulties because very less data available about this most advane NASA UCAV.
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« Reply #3 on: May 11, 2014, 01:21:57 PM »
Darshil Patel
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Preparing for test flight.

20140508_104501.jpg
Re: NASA UCAV X-47B for Sweepstakes-2014
* 20140508_104501.jpg (65.83 KB, 800x600 - viewed 375 times.)
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« Reply #4 on: May 11, 2014, 01:43:06 PM »
AnjanBabu
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Looks beautiful! Grin

Build photos? I want to see how you built it!
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« Reply #5 on: May 11, 2014, 02:18:47 PM »
topalle
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Where are the intermediate stage pics?
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« Reply #6 on: May 11, 2014, 02:28:32 PM »
utkarshg13
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Very good.
Will look beautiful while flying.
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« Reply #7 on: May 11, 2014, 04:21:04 PM »
Darshil Patel
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It has only three parts.
Top duct fan covering, main wing and battery cover at bottom.

20140427_111422-1.jpg
Re: NASA UCAV X-47B for Sweepstakes-2014
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« Reply #8 on: May 11, 2014, 04:26:46 PM »
Darshil Patel
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Top ducted fan covering and battery cover.
Last pic after sticking cloth ribbon for decoration.

20140508_104625-1.jpg
Re: NASA UCAV X-47B for Sweepstakes-2014
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« Reply #9 on: May 11, 2014, 05:03:33 PM »
Darshil Patel
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Winglets are not attached separately.
I just folded main wing.
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« Reply #10 on: May 11, 2014, 05:16:11 PM »
Darshil Patel
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Upper cover of ducted fan by folding corrugated plastic sheet.

20140511_170801-1.jpg
Re: NASA UCAV X-47B for Sweepstakes-2014
* 20140511_170801-1.jpg (21.31 KB, 619x571 - viewed 231 times.)
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« Reply #11 on: May 13, 2014, 09:55:38 PM »
Darshil Patel
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Highly disappointing morning.
my plane crashed during test flight due to under power ducted fan and i think i should add rudder in original design

Going to start new thread for sweepstakes 2014. i am making my favorite F-22.
 
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« Reply #12 on: May 14, 2014, 08:51:33 AM »
utkarshg13
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That was bad. Didn't you checked the weight of your model and thrust required for it
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« Reply #13 on: May 14, 2014, 10:43:37 PM »
Darshil Patel
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I checked it and i knew the thrust to weight ratio was not high.
but i didn't have choice so i tried. My Battery 30 amp esc also damaged.
Later i will make larger plane with pusher prop.
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« Reply #14 on: May 14, 2014, 11:53:28 PM »
utkarshg13
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That was sad. Loosing battery esc plane Bang Head Bang Head Bang Head
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