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Author Topic: Black Lightning 2011 attempt  (Read 25452 times)
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Stainless1
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Robert W. P. "Stainless" Steele Wichita, Kansas



« on: January 04, 2011, 10:48:19 AM »

Well Mad Max, the Kansas Badman is at it again.

When Max and I removed the parachutes from the Black Lightning we noticed a problem.  It appears the tethers may have burned during the last deployment.  Trying to understand if it was a packing issue that can be avoided or what.  The burns are within a foot of the covered attachment portion.  Max uses the bags in a tube arrangement, does not look like it is a tube issue so I am figuring maybe how it was packed.  Anyone out there ever see anything like this?  Will probably send the pictures and/or the tethers to Stroud.
two pictures of each line, one was burned through leaving a single line holding the chute, the other partially burned through.


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Stainless
Red Hat 228.039, 2001, 65ci, MSA Bockscar Lakester with a little N20 
MSA Bockscar Lakester #1000 my fastest mile 245 and change, 84 ci turbobusa motor... but Corey's 233 MPH H/BFL record is still 3MPH faster than mine.
Glen
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« Reply #1 on: January 04, 2011, 11:23:15 AM »

Stainless, how about a couple of pictures of the tube and attachment for a better idea of the area of concern. I know that some run a section of fire sleeve near the attachment area or around any heat source.
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Glen
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Stainless1
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Robert W. P. "Stainless" Steele Wichita, Kansas



« Reply #2 on: January 04, 2011, 12:51:33 PM »

I have a few and I will take more.  The tether is canvas covered for about 30 inches, the burns are at the 40 inch or so area.  There is nothing hot back there.

the ear in the 3rd pic is half of the attach point for the 2 chutes.


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Stainless
Red Hat 228.039, 2001, 65ci, MSA Bockscar Lakester with a little N20 
MSA Bockscar Lakester #1000 my fastest mile 245 and change, 84 ci turbobusa motor... but Corey's 233 MPH H/BFL record is still 3MPH faster than mine.
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« Reply #3 on: January 04, 2011, 01:04:22 PM »

Any pictures with the tether attached and showing the actual failure point beyond the end of the tubes, any pictures with the chute deployed at speed to show the canopy position in relation to the back of the bike?
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Glen
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Stainless1
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Robert W. P. "Stainless" Steele Wichita, Kansas



« Reply #4 on: January 04, 2011, 10:49:04 PM »

Let me do some searching, if not I can take one of the tether attached.  Have some pics from Ray that I need to go through, might be a chute pic in there
thanks Glen
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Stainless
Red Hat 228.039, 2001, 65ci, MSA Bockscar Lakester with a little N20 
MSA Bockscar Lakester #1000 my fastest mile 245 and change, 84 ci turbobusa motor... but Corey's 233 MPH H/BFL record is still 3MPH faster than mine.
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« Reply #5 on: January 05, 2011, 09:13:57 AM »

Those burns don't look like they happened with the lines under tension. I'd be looking for somewhere on the bike that has residue stuck to it from the contact. Almost looks like they came in contact with a very hot, sharp edge, like the end of an exhaust pipe.

Is there any chance that after the run, while the chute was being gathered up, that it was draped over the body of the liner and the lines hit a still hot pipe?
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Ah, this is obviously some strange usage of the word 'safe' that I wasn't previously aware of.  Douglas Adams
Stainless1
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Robert W. P. "Stainless" Steele Wichita, Kansas



« Reply #6 on: January 05, 2011, 11:20:34 PM »

Whizz, nothing back there that close to the tethers.  One of them is 3 ft from the attach point, the other is a little over 2.  I am guessing friction as the tether deployed, just trying to wrap my mind around how it happened. 
Come on down and take a look, surely you get to Wichita now and then. 

More info, the tubes are 2 feet long, pictures soon
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Stainless
Red Hat 228.039, 2001, 65ci, MSA Bockscar Lakester with a little N20 
MSA Bockscar Lakester #1000 my fastest mile 245 and change, 84 ci turbobusa motor... but Corey's 233 MPH H/BFL record is still 3MPH faster than mine.
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« Reply #7 on: January 06, 2011, 01:32:58 AM »

have to take a wild guess!

Any chance it may be a spilled chemical? We do use some potent cleaners and such. I found a melted place on my arm restraints near the loose end. It looked like a iron of some kind was laid on it. It looks like the end of the strap is sealed with some kind of heat tool during manufacture, maybe it was laid down on the strap by accident, it will probably be OK, it has a current SFI tag on it. undecided

OK I'll go to bed now. It's way past my bed time.

Harvey
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« Reply #8 on: January 06, 2011, 11:31:24 AM »

Whizz, nothing back there that close to the tethers.  One of them is 3 ft from the attach point, the other is a little over 2.  I am guessing friction as the tether deployed, just trying to wrap my mind around how it happened.  Come on down and take a look, surely you get to Wichita now and then. 

More info, the tubes are 2 feet long, pictures soon

SS, Is there any holes in the canvas? If it was caused by friction and the tether was covered by canvas I would think there would be a hole in the canvas.
Just thinking about it Rick
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Stainless1
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Robert W. P. "Stainless" Steele Wichita, Kansas



« Reply #9 on: April 23, 2011, 10:14:36 AM »

OK, we have decided that the chute may have been packed with some of the front at the back and the nylon on nylon friction burned the tethers.  Here are a few more pictures, as you can see, nothing back there to burn anything but line movement... all I can suggest to everyone is be careful how you pack your chutes and carefully manage where you put what parts.  Thanks to everyone including Rex S and Tom B for the indepth analysis of our issues and suggestions on how to avoid a future problem.


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Stainless
Red Hat 228.039, 2001, 65ci, MSA Bockscar Lakester with a little N20 
MSA Bockscar Lakester #1000 my fastest mile 245 and change, 84 ci turbobusa motor... but Corey's 233 MPH H/BFL record is still 3MPH faster than mine.
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Robert W. P. "Stainless" Steele Wichita, Kansas



« Reply #10 on: April 23, 2011, 10:36:54 AM »

Well I mentioned that Max was thinking of going solid on last years Black Lightning thread
http://www.landracing.com/forum/index.php/topic,7135.150.html
Well, Max started feeling good after several of his medical issues got worked and he went out in the garage and started hacking, the swing arm is gone, the shock mounts are gone, oh, everything is gone and by the time I got my camera over there he was putting it back together.
As you can see, when Max decides to do something he commits to it


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Stainless
Red Hat 228.039, 2001, 65ci, MSA Bockscar Lakester with a little N20 
MSA Bockscar Lakester #1000 my fastest mile 245 and change, 84 ci turbobusa motor... but Corey's 233 MPH H/BFL record is still 3MPH faster than mine.
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« Reply #11 on: April 23, 2011, 11:01:46 AM »

glad to know max and team are going at
it again in '11.

good luck.

franey
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Stainless1
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Robert W. P. "Stainless" Steele Wichita, Kansas



« Reply #12 on: April 23, 2011, 11:02:24 AM »

OK, the slacker photog didn't get the first pics up until he took more....  rolleyes
Max sent me home with some homework pieces, those can be seen as adjusters, Max had them 85%, I just finished them.
Max has a little more done now, as you can see, he only had one side primed.  
Mac decided to do this before the motor and tranny so the proper ride level could be measured.  This change to solid will eliminate the tight / loose chain condition issues that happen when your drive and pivot point are a foot or more apart.  He thinks that might have led to the output trans bearing problem last year.  Since the hack is also solid, he thought that was causing some issues based on suspension to sidecar movement giving uncommanded lean angles requiring steering input.  Hopefully my explanation is understandable... I know what I mean...  shocked  grin


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Stainless
Red Hat 228.039, 2001, 65ci, MSA Bockscar Lakester with a little N20 
MSA Bockscar Lakester #1000 my fastest mile 245 and change, 84 ci turbobusa motor... but Corey's 233 MPH H/BFL record is still 3MPH faster than mine.
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« Reply #13 on: April 23, 2011, 11:10:13 AM »

I am impressed by his dedication to bench grinders.

He certainly is laid back. Try to get a foto of him scratching.

FREUD
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« Reply #14 on: April 23, 2011, 11:35:23 AM »

I am impressed by his dedication to bench grinders.

FREUD

Looks just right to me Freud, one for making things sharp, one for making things dull and one for polishing things.
Jim
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Unless it's crazy, ambitious and delusional, it's not worth our time!
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