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Title: NASA UCAV X-47B for Sweepstakes-2014 Post by: Darshil Patel on May 02, 2014, 03:13:08 PM 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. Title: Re: NASA UCAV X-47B for Sweepstakes-2014 Post by: AnjanBabu on May 02, 2014, 05:41:06 PM 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! :thumbsup: Title: Re: NASA UCAV X-47B for Sweepstakes-2014 Post by: Darshil Patel on May 03, 2014, 06:50:00 AM Thanks Anjanbabu.
There are difficulties because very less data available about this most advane NASA UCAV. Title: Re: NASA UCAV X-47B for Sweepstakes-2014 Post by: Darshil Patel on May 11, 2014, 01:21:57 PM Preparing for test flight.
Title: Re: NASA UCAV X-47B for Sweepstakes-2014 Post by: AnjanBabu on May 11, 2014, 01:43:06 PM Looks beautiful! ;D
Build photos? I want to see how you built it! Title: Re: NASA UCAV X-47B for Sweepstakes-2014 Post by: topalle on May 11, 2014, 02:18:47 PM Where are the intermediate stage pics?
Title: Re: NASA UCAV X-47B for Sweepstakes-2014 Post by: utkarshg13 on May 11, 2014, 02:28:32 PM Very good.
Will look beautiful while flying. Title: Re: NASA UCAV X-47B for Sweepstakes-2014 Post by: Darshil Patel on May 11, 2014, 04:21:04 PM It has only three parts.
Top duct fan covering, main wing and battery cover at bottom. Title: Re: NASA UCAV X-47B for Sweepstakes-2014 Post by: Darshil Patel on May 11, 2014, 04:26:46 PM Top ducted fan covering and battery cover.
Last pic after sticking cloth ribbon for decoration. Title: Re: NASA UCAV X-47B for Sweepstakes-2014 Post by: Darshil Patel on May 11, 2014, 05:03:33 PM Winglets are not attached separately.
I just folded main wing. Title: Re: NASA UCAV X-47B for Sweepstakes-2014 Post by: Darshil Patel on May 11, 2014, 05:16:11 PM Upper cover of ducted fan by folding corrugated plastic sheet.
Title: Re: NASA UCAV X-47B for Sweepstakes-2014 Post by: Darshil Patel on May 13, 2014, 09:55:38 PM 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. Title: Re: NASA UCAV X-47B for Sweepstakes-2014 Post by: utkarshg13 on May 14, 2014, 08:51:33 AM That was bad. Didn't you checked the weight of your model and thrust required for it
Title: Re: NASA UCAV X-47B for Sweepstakes-2014 Post by: Darshil Patel on May 14, 2014, 10:43:37 PM 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. Title: Re: NASA UCAV X-47B for Sweepstakes-2014 Post by: utkarshg13 on May 14, 2014, 11:53:28 PM That was sad. Loosing battery esc plane :banghead: :banghead: :banghead:
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