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ThunderPigC130

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 #1 
Hello

  Yesterday I finally made it to the back side of the the debris field for B52G 58-0161, which crashed near st george utah on 11 april 1983.

  The top half of the vertical stabilizer is there and it has about a 1' wide chevron shaped strip going across it.  It is silver now, dont know if it was painted at one time or not.  

  I have looked at many B52 pictures ( Various models ) and while some have this stripe most do not.  No modern aircraft carry it.

  I know some aircraft had LORAN antennas built into the vertical tails, but perhaps it could be some kind of a low light flying stripe like many military aircraft have?

  Anybody know what this is and the story on why some have the stripe and some dont?

Thanks !

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DaveTrojan

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 #2 
The stripe should just be a squadron marking. not related to LORAN antenna.  
ChrisBaird

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 #3 
This photo has that same band of different material.

https://www.afsc.af.mil/News/Photos/igphoto/2001509649/

On the B-52 cutaway it shows it as a "structural dielectric isolator" (I think it's #71??)

http://atomic-annhilation.blogspot.com/2013/04/1957-b-52-cutaway.html


Chris B.
ChrisBaird

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 #4 
Is that to dissipate lightning strikes?
ChrisBaird

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 #5 
Found a slightly better cutaway … they call it the "Fin Tip Isolating Strip"
Apparently a non-conductive insulator to isolate surface static charges or lightning from sensitive electronics downstream of that giant rudder.


B52.jpg 

WaltW

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 #6 

The isolation of the fin tip may also have to do with the presence of the HF antenna at the tip.  That's a radio set with several hundred watts of RF output.  I worked with old bomber comm/nav guys in both B-1 and B-2.  They had lots of stories about HF radio energy doing weird things when it got foggy or someone didn't assemble something properly.  Lots of St. Elmo's fire and sparks.

Walt

ThunderPigC130

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 #7 
Chris:  Thanks for all the cut a way drawings and links, i appreciate your efforts.

Walt:  I knew you would know what it was !!  You know everything HA

  I spent a lot of time looking at photos of various models of the 52 and interesting to note that some models have the strip and some dont.  Maybe the HF antenna was mounted somewhere else on those models ... Or maybe it was phased out over time as electronics got better?

  
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