Karl Polifka
  • Williamsburg, VA
  • United States
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Karl Polifka posted a blog post

FAA inspection

Is there any requirement for FAA to inspect/approve the installation of the modification kit on an experimental-built XL?
Jan 6, 2010
Karl Polifka posted a blog post

6-ZU-3 doubling rivets

Looking at 6-ZU-3, I am a bit uncertain how far out to double rivets on the front and rear spars. Additionally, would it be a good idea to drill those new rivet holes prior to removing the skin so there would be better positioning and better clean up. Any thoughts?
Nov 26, 2009
Karl Polifka is now a member of Zenith Aircraft Builders and Flyers
Apr 22, 2009

Profile Information

Aircraft Model
ZODIAC XL
Project Status
Flying
Building From
Kit
Building Experience
Have already built an airplane
Flying Experience
Commercial / CFI
Building and Flying Info / Your Profession / Other Background Info
USAF retired

Karl Polifka's Blog

FAA inspection

Posted on January 6, 2010 at 10:31am 2 Comments

Is there any requirement for FAA to inspect/approve the installation of the modification kit on an experimental-built XL?

6-ZU-3 doubling rivets

Posted on November 26, 2009 at 11:26am 0 Comments

Looking at 6-ZU-3, I am a bit uncertain how far out to double rivets on the front and rear spars. Additionally, would it be a good idea to drill those new rivet holes prior to removing the skin so there would be better positioning and better clean up. Any thoughts?

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