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Old 01-02-2016, 08:46 PM
  #101  
kram
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Join Date: Jul 2002
Location: ames, IA
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Half-planked nacelle with the cowl off, showing the firewall and the "well nuts" Dwayne uses to control engine vibration between the firewall and the nacelle

Page from McMaster Carr catalog, showing how they work and so you can order some, if you want

Longitudinal splines for the nacelles, part of the kit wood, but NEVER used in a Dwayne bomber build. Looking back at the cowl-less nacelle, you can see areas o n the inside surface of the nacelle planking where he will glue extra layers of hard balsa to add strength, but NO longitudinal splines! He thinks they just add complexity, get in the way of tank and gear mounting and don't add that much strength. Certainly, the longevity of Dwayne's planes speaks to the science of that hypothesis
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