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Old Jan 19, 2013, 05:12 AM
Not a newbie anymore..
skyhawk newbie's Avatar
Ireland, Cork
Joined Oct 2010
2,027 Posts
Quote:
Originally Posted by whirlcap View Post
Got this one done today. Did some AV as well as hat camera video with this one. You get a pretty good idea of the speed in first person. Enjoy
http://vimeo.com/57726834
Cool Video,very enjoyable....

Sean
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Old Jan 19, 2013, 04:13 PM
Registered User
Backyard's Avatar
Tresure Coast Florida
Joined Feb 2004
254 Posts
...And the academy award goes to "Mister Toad's Wild Assassin Ride"!!
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Old Jan 19, 2013, 05:07 PM
Registered User
Backyard's Avatar
Tresure Coast Florida
Joined Feb 2004
254 Posts
Widowmaker Build

EMax 2812 motor
30 amp Hurc ESC
EZ Flite 3S 1800 mAh 40C (155 grams)
MG90 servos
Minima 5 channel HK Hitec knockoff receiver
GG to join wings and set formica.
GG to set shock cord. Big mess, would use CA here next time.
Winglets cut from thin plastic milk bottle and glued with E6000.
AUW 513 grams 18.3 oz. (may need to lose an oz.)

Seems like everything is thrust vs. drag and weight vs. strength but COG is king. Lee’s design sets this up perfectly. I wanted to use new gutsy 1800 mAh batteries so I figured since others have added weight to the nose I would add chemical electricity instead, 3 ˝ inches back. COG is about 1/8 inch ahead of the spar. Test glides slightly nose heavy. Maiden will tell (maybe tomorrow if the weather cooperates).

CaribbeanBlue’s horn idea is great but I went with a super permanent approach that added only 1.5 grams (see pix below). I’m also going to change to carbon push rods. As you can see I custom mounted the power and electronic components. I used a soldering iron to hog out the EPP and shimmed the servos with small pieces of EPP scrap stuffed into the openings and hot glued them in (highly recommended). They are solid as a rock.
Flight report next.
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Old Jan 19, 2013, 07:03 PM
If it spins, wear it.
whirlcap's Avatar
Northern Nevada
Joined Jan 2011
2,248 Posts
Nice job Backyard! Had to do a double take, we are both using the same trim packing tape My wife calls mine "stripper girl" because of it

We had some combat today and while there was no direct hits there was one totalled Popwing Here is the video of the action
RC Flying Wing Combat (3 min 47 sec)
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Last edited by whirlcap; Jan 19, 2013 at 07:17 PM.
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Old Jan 20, 2013, 07:02 AM
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Backyard's Avatar
Tresure Coast Florida
Joined Feb 2004
254 Posts
Thanks Whirlcap. I like the way you found the repeat pattern on the tape and matched it up perfectly. You can wallpaper at my house any time. I'm going to put black in the center when I find the tape.
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Old Jan 20, 2013, 05:50 PM
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United States, FL, Palm Beach
Joined Jan 2011
1,133 Posts
Late afternoon flight today, decided to record some of it.

Bad launch, forgot to give it some up elevator, but it still went off. There was some wind so I wanted to practice my landings for the first battery - this is my first go.

CTH Assassin 34" flying wing - 1 (2 min 23 sec)


Much better launch with a click of up trim. Nice 5ft bounce off the ground at the end, but didn't hurt anything. Thought the dive speed would be enough to pull out.

CTH Assassin 34" flying wing - 2 (6 min 16 sec)
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Old Jan 20, 2013, 06:09 PM
Luis Claudio - Rio - Brazil
Luis_Claudio's Avatar
Brasil, RJ, Rio de Janeiro
Joined Apr 2005
2,393 Posts
"Oh no!!!"




Quote:
Originally Posted by viper522 View Post
Late afternoon flight today, decided to record some of it.

Bad launch, forgot to give it some up elevator, but it still went off. There was some wind so I wanted to practice my landings for the first battery - this is my first go.

http://www.youtube.com/watch?v=ybg3fPAdXcU

Much better launch with a click of up trim. Nice 5ft bounce off the ground at the end, but didn't hurt anything. Thought the dive speed would be enough to pull out.

http://www.youtube.com/watch?v=j4hQFrvtzmQ
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Old Jan 20, 2013, 06:12 PM
Registered User
United States, FL, Palm Beach
Joined Jan 2011
1,133 Posts
This one I call 'crash testing'. There are plenty of videos demonstrating how strong these planes can be if you follow the provided instructions. Here is mine.

CTH Assassin crash testing (1 min 23 sec)
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Old Jan 20, 2013, 06:16 PM
Luis Claudio - Rio - Brazil
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Brasil, RJ, Rio de Janeiro
Joined Apr 2005
2,393 Posts
Yes, I know. I have two Assassins and already built a few more before. The video was funny!
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Old Jan 21, 2013, 12:49 PM
no one knows i'm a dog
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United States, NV, Carson City
Joined Dec 2012
10 Posts
Another crash test

I lost the Widowmaker in the sun for a sec on a high speed turn. A lot can happen in a sec. lol... Back in view just in time to see it hit nose first at almost wot. No damage to the plane. Battery puffed big time, trashed a servo, and reciever no worky. I think the xtal is trashed (I have 72mhz stuff.) The very tip of the nose seemed a little soft but sitting overnight and it's like new. So now I get metal gear servos. Headsuprc has 12g Emax metal gear servos they say compares to Hitec HS65HB. Any of you guys try those? I'm thinking 9g servos won't cut it.

I went with the TowerPro MG90s.
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Last edited by dawgpilot; Jan 21, 2013 at 11:48 PM.
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Old Jan 22, 2013, 08:15 PM
Registered User
United States, MN, Little Falls
Joined May 2009
231 Posts
My Assassin rebuild is done. Here are some pics.



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Old Jan 22, 2013, 08:52 PM
Registered User
Blythewood, SC
Joined Dec 2003
219 Posts
Looks good wynsrc, go get um.
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Old Jan 22, 2013, 09:59 PM
Bay Area Prop Buster
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Bay Area CA
Joined Jan 2011
3,934 Posts
Let er rip wingman, have a blast!
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Old Jan 25, 2013, 11:24 AM
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nofreee's Avatar
United States, CA, San Diego
Joined Jan 2012
248 Posts
My motor mount cracked after a very hard impact. Any idea where I can find a replacement?
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Old Jan 25, 2013, 11:33 AM
Registered User
United States, FL, Palm Beach
Joined Jan 2011
1,133 Posts
Quote:
Originally Posted by nofreee View Post
My motor mount cracked after a very hard impact. Any idea where I can find a replacement?
The square tile or the metal 'L'?
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