Lumenier RB2205C-12 2400KV SKITZO Ceramic Bearing Motor
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Old May 17, 2012, 07:39 PM
harfordhawk is offline
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First hand view of wing spar breaking


Well.. ya know.. I don't always get to doing the mods that I should do.. and I can tell you first hand, reinforce the cheap flimsy spar!
Here is a video of the spar breaking in a dive.. sure I was diving hard, cause I had a battery failure, or something, my battery went from 10.8 to 8.8 in like 20 seconds..
But anyway, I was interested in getting it back to earth and out of the wind with no power.. the spar broke in the dive...
(by the way.. you can't actually see the spar break in this video as this is from a cam on the nose of bixler)

but makes for good video...

Needless to say, some glue, some hot water, some tape and I am back in business.
flyoverFMS_crash.wmv (1 min 37 sec)
Last edited by harfordhawk; May 17, 2012 at 08:34 PM.
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Old May 17, 2012, 08:20 PM
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Quote:
Originally Posted by harfordhawk View Post
Well.. ya know.. I don't always get to doing the mods that I should do.. and I can tell you first hand, reinforce the cheap flimsy spar!
Here is a video of the spar breaking in a dive.. sure I was diving hard, cause I had a battery failure, or something, my battery went from 10.8 to 8.8 in like 20 seconds..
But anyway, I was interested in getting it back to earth and out of the wind with no power.. the spar broke in the dive...

but makes for good video...

Needless to say, some glue, some hot water, some tape and I am back in business.
http://youtu.be/IhbeVwPzpsw
Some people (like me) glued a 4mm carbon spar inside the 6mm that came with my Skysurfer.

Check out page #1 of this thread. AJ has collected a number of mods and the spar upgrade is there.
Old May 17, 2012, 08:26 PM
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'tis nothing
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I'm confused. I didn't see anything break. Did anyone else see a spar failure in this video?
Old May 17, 2012, 08:31 PM
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Originally Posted by shunyata View Post
I'm confused. I didn't see anything break. Did anyone else see a spar failure in this video?
Well I guess you can't see it break... but you can see the shadow of the "swept back wings as it kisses the earth..
Old May 17, 2012, 08:32 PM
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Originally Posted by Eagle202 View Post
Some people (like me) glued a 4mm carbon spar inside the 6mm that came with my Skysurfer.

Check out page #1 of this thread. AJ has collected a number of mods and the spar upgrade is there.
Yes I went to Home Depot and bought a fiberglass rod.. 8mm.. reamed out the hole and put that in.. I don't think its gonna break again..
Old May 17, 2012, 09:04 PM
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Quote:
Originally Posted by harfordhawk View Post
Well.. ya know.. I don't always get to doing the mods that I should do.. and I can tell you first hand, reinforce the cheap flimsy spar!
Here is a video of the spar breaking in a dive.. sure I was diving hard, cause I had a battery failure, or something, my battery went from 10.8 to 8.8 in like 20 seconds..
But anyway, I was interested in getting it back to earth and out of the wind with no power.. the spar broke in the dive...
(by the way.. you can't actually see the spar break in this video as this is from a cam on the nose of bixler)

but makes for good video...

Needless to say, some glue, some hot water, some tape and I am back in business.
http://youtu.be/IhbeVwPzpsw
I know that this thread is so bloddy big it is ridiculous,but, for somebody that has read this thread at least 1/4 worth, you would have beefed up your spar even before the the first flight, just sayin.
Old May 17, 2012, 09:05 PM
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I reinforce mine wt a 4mm cf tube and 2mm solid cf rod...feel a bit heavy and tough
Old May 17, 2012, 09:17 PM
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Originally Posted by CPMBOY View Post
I reinforce mine wt a 4mm cf tube and 2mm solid cf rod...feel a bit heavy and tough
Not to worry, one could even bore out the spar hole to accept an 8mm hollow tube,6mm inide the 8, and a 4mm inside the six,the only thing that's gonna break that is a high velocity crash
Old May 17, 2012, 09:17 PM
NorCalMatCat is offline
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FPV Electronics For Life!
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Originally Posted by Limited flyer View Post
I know that this thread is so bloddy big it is ridiculous,but, for somebody that has read this thread at least 1/4 worth, you would have beefed up your spar even before the the first flight, just sayin.
From many months of watching this thread I can see many patterns of many subjects that repeat themselves many times over :P
Old May 17, 2012, 09:19 PM
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Yup.
Old May 17, 2012, 09:20 PM
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Argue for your limitations
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Originally Posted by shunyata View Post
I'm confused. I didn't see anything break. Did anyone else see a spar failure in this video?
You can see it AFTER it is broken at the last 1/2 sec. of the video. Look for the shadow. It is quick though.
AJ
Old May 17, 2012, 09:22 PM
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1/2 second,VERY good eye.
Old May 17, 2012, 09:29 PM
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Originally Posted by ajbaker View Post
You can see it AFTER it is broken at the last 1/2 sec. of the video. Look for the shadow. It is quick though.
AJ
Had to watch it twice.saw it.
Old May 17, 2012, 09:35 PM
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'tis nothing
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Originally Posted by ajbaker View Post
You can see it AFTER it is broken at the last 1/2 sec. of the video. Look for the shadow. It is quick though.
AJ
I know, just giving him a hard time. All I saw was the result of pilot error.

But he did admit to it, soooo, it's cool. lol

There's nothing wrong with the stock spar unless it's abused.
Old May 17, 2012, 10:59 PM
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Originally Posted by shunyata View Post
I know, just giving him a hard time. All I saw was the result of pilot error.

But he did admit to it, soooo, it's cool. lol

There's nothing wrong with the stock spar unless it's abused.
I only put it up for entertainment value... people .. relax... I know I should have .. could have.. didn't... I just thought people might enjoy it.. Maybe I was wrong..


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