Aircraft grade Birch is acceptable and is readily available at Wick's and AS&S. Do not use non aircraft grade Birch plywood for structural building as it does not meet Mil Spec MIL-P-6070B. This spec covers grain, thickness, moisture, tensile strength,glue, bending, torsion and immerson.
Mark Jones (N886MJ) Wales, WI USA E-mail me at flyk...@wi.rr.com Visit my KR-2S CorvAIRCRAFT web site at http://mywebpage.netscape.com/n886mj/homepage.html ----- Original Message ----- From: "Justin" <jmw...@socal.rr.com> To: <kr...@mylist.net> Sent: Wednesday, May 07, 2003 7:28 PM Subject: KR>Wood Question I seen Birch Plywood at the Local wood store. Is this ok for airplanes? I know a fellow plane builder in my chapter who is building his plane with Birch but im not sure where he got it. I am no expert in anyway (obvously) on what is acceptable. Justin _______________________________________________ see KRnet list details at http://www.krnet.org/instructions.html
