[NSRCA-discussion] Motor Mount Bonding

[Jerry Budd]

Yeah, me too!  ;-)

Jerry


>Lets see how much traffic this e-mail generates. Oh well, I was bored lately
>anyway.....  :)
>
>Mike Cohen
>
>----- Original Message -----
>From: "Mike Darr" <mdarr00 at comcast.net>
>To: "NSRCA Discussion" <nsrca-discussion at lists.nsrca.org>
>Sent: Tuesday, March 21, 2006 5:53 PM
>Subject: [NSRCA-discussion] Motor Mount Bonding
>
>
>>  Merle Hyde asked me to post this on the discussion page for him.
>>
>>
>>  Subj:  Soft Mount Bonding
>>
>>  "OH" really - so the adhesive is the final solution!!!!  If the rubber
>>  won't tear or fail first the bond is not sufficient.  I have tested the
>>  latest offering and it can also be pulled apart - peels off like a tougher
>>  "lemon"!!!!   Modelers really "NEED" a mount in a 2-20 thousand dollar
>>  aircraft that can and probably will fail!!!!
>>
>>  Approximately 40 rubber fabricators have been contacted to mass produce a
>>  reliable rubber bond.  They will prototype for $200,000-$300,000 with no
>>  guarantees.  The genuine Hyde Mount rubber bond is a 4-6 hour direct labor
>>  process - with a proven life of over 7000 flights.   Upon disassembly of
>>  high time genuine Hyde Mounts it appears the bond would likely remain
>>  reliable for 14,000 flights or equal to the expected rubber life!!!!
>>
>>  Hyde Mounts are so reliable that even the severe cantilever force loads
>>  imposed upon the rubber bonding of NO NOSE RING required Hyde Mounts have
>>  been proven to endure thousands of flights without pull apart or failure.
>>
>>  Some have experienced problems and beam breakage with undrilled nylon
>>  composite beam Hyde Mounts offered several years ago.   Modelers often did
>>  not drill or install blinds nuts per suggestions provided.  Hyde Mount
>>  nylon
>>  beams when properly drilled are designed to break at around 100 lbs. force
>>  load - or at around 50G's for a 2 lb. engine - aircraft snap at around
>>  15-18
>>  Gs.  Hyde Mounts now with pre-drilled beams and blind nuts installed have
>>  only been reported to break when crashed or impacted.  The deliberate 100
>>  lbs. force breakage point often prevents more severe damage to the
>>  engine/crankshaft/firewall/aircraft/mount.
>>
>>  Salvage your hardware investment:   Reliable rubber bonding service
>>  available for the "do-it-yourself" mount builder or other brands.  Simply
>>  send your preferred hardware parts and rubber to:  Merle Hyde
>>
>>  --------------------------------------------------------------
>>
>>  Thanks - Merle
>>
>>  _______________________________________________
>>  NSRCA-discussion mailing list
>>  NSRCA-discussion at lists.nsrca.org
>>  http://lists.nsrca.org/mailman/listinfo/nsrca-discussion
>>
>
>
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-- 
___________
Jerry Budd
Budd Engineering
(661) 722-5669 Voice/Fax
(661) 435-0358 Cell Phone
mailto:jerry at buddengineering.com
http://www.buddengineering.com