Okay Mr Wade, I can be opinionated!. You sound like you know what you are doing, i.e. making a solid center spar as opposed to the plans built box construction. Not a bad idea if the center spar is going to have a lot of other than plans built extras attached to it. Your spar will be about 10% heavier than the solid spruce, though I cannot recall how much the original box construction spar weighed in it. As for "personal reasons"...I used solid spruce on another aircraft and was sorry to see such precious sitka spruce being used on an airplane because it is ideal wood for string instrument makers, and expensive as all get out!!
-----Original Message----- From: David wade Sent: Thursday, February 09, 2012 1:37 AM To: kr...@mylist.net Subject: KR> (no subject) Hello everybody. My name is David Wade and My KR-2 is my first aircraft project ever. I have did careful research on my Center section spar material and I looked at AC 43.13-1B Chp 1 pg 1-2, table 1-1. I have decided to use Douglas fir 6 layer 1/2 inch laminate useing T-88 glue as a substitute for spruce for various reasons both personal and non personal.Before I do I wanted to get a few opinions and thoughts before I buy those pieces. Opinions are always appreciated. Mr wade _______________________________________ Search the KRnet Archives at http://mylist.net/private/krnet/ to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net please see other KRnet info at http://www.krnet.org/info.html