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make your own reeds - Cox .049 Experimental "Crystal" reeds are now available Cox_ba12




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make your own reeds - Cox .049 Experimental "Crystal" reeds are now available Pixel

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Cox .049 Experimental "Crystal" reeds are now available

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Post  Cox International Thu May 09, 2013 12:33 pm

In Israel, from the former National Cox distributor, we received a stash of reeds we had only, on rare occasions, seen samples of. We are now offering those for sale:

http://coxengines.ca/cox-.049-reed-valve-crystal-3.html
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Post  Cribbs74 Thu May 09, 2013 1:00 pm

Have you tried them yourself Bernie? If so how do they perform?

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Post  Cox International Thu May 09, 2013 1:11 pm

Even witha small prop - high RPM (22k +) no reed float.

Easy restarts... seem to run fine.

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Post  Cribbs74 Thu May 09, 2013 1:23 pm

Cox International wrote:Even witha small prop - high RPM (22k +) no reed float.

Easy restarts... seem to run fine.


Great. May be the ticket for the next tach race engine.

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Post  RknRusty Thu May 09, 2013 4:26 pm

Probably polycarbonate. Strong stuff, You can even bend sheets in a bending break without heating it.

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Post  JPvelo Thu May 09, 2013 4:59 pm

Cox International wrote:Even witha small prop - high RPM (22k +) no reed float.

Easy restarts... seem to run fine.


How can you tell if the reed is floating?

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Post  Cox International Fri May 10, 2013 5:41 pm

When the engine surges at high RPM's. This was a common problem with the old copper-beryllium reeds.

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