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ASK-21 Rubber "donuts" shock absorbers



 
 
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  #1  
Old December 2nd 11, 01:11 AM posted to rec.aviation.soaring
Bill D
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Posts: 746
Default ASK-21 Rubber "donuts" shock absorbers

Has anyone ever replaced these in an old K-21"
  #2  
Old December 2nd 11, 09:44 PM posted to rec.aviation.soaring
Andreas Maurer
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Posts: 345
Default ASK-21 Rubber "donuts" shock absorbers

On Thu, 1 Dec 2011 17:11:58 -0800 (PST), Bill D
wrote:

Has anyone ever replaced these in an old K-21"


Sure. How can I help?

Andreas

  #3  
Old December 3rd 11, 01:24 AM posted to rec.aviation.soaring
Bill D
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Posts: 746
Default ASK-21 Rubber "donuts" shock absorbers

On Dec 2, 2:44*pm, Andreas Maurer wrote:
On Thu, 1 Dec 2011 17:11:58 -0800 (PST), Bill D
wrote:

Has anyone ever replaced these in an old K-21"


Sure. How can I help?

Andreas


What is the generally accepted service life of the "donuts"?
  #4  
Old December 3rd 11, 04:25 AM posted to rec.aviation.soaring
Andreas Maurer
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Posts: 345
Default ASK-21 Rubber "donuts" shock absorbers

On Fri, 2 Dec 2011 17:24:36 -0800 (PST), Bill D
wrote:

What is the generally accepted service life of the "donuts"?


Long.
We changed ours in 2009 when our 21 had about 4.000 hrs and 12.000
flights (it was built in 1986). All landings on a less-than-perfect
grass airfield.
We changed them when the gear started to rattle because the donuts had
become permanently compressed.


Andreas




 




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