Where are you located?
thanks Jim
On Sun, 6 Feb 2005 13:17:13 -0500 <ronev...@cox.net> writes:
> Netters;
> The topic of what wood to use to build a wooden airplane has
> always been a hot topic. Studies reveal that douglas fir is
> stronger than spruce, but slightly heavier. The strongest, most
> stable fir is old growth CVG: Old growth means more than 10 growth
> rings per inch - it really has nothing to do with age of the tree,
> and CVG means Clear, verticle grain.
> If you examine any unit of lumber, you'll find some of the the
> boards have more than ten rings per inch. That board could then be
> resawn, ensuring that the rings are verticle, deleting the knots,
> and be used for aircraft building. Since most mill-run construction
> lumber isn't dried, a builder would want to season it until the
> moisture content is reducted to a minimum in order to ensure that
> the fibers sabilize. And, of course, once the wood is built into a
> airplane, it should be sealed so it won't reabsorb moisture.
> I recall reading about builders who used douglas fir for
> construction of a KR, and the added weight was less than 10 lbs.
> Therefore, I think using douglas fir is a viable option for builing
> KRs...or any wooden airplane.
> However, if you insist on using spruce, I have a KR-2s
> fuselage, built of spruce, for sale right now...for only $150. Come
> and get it boys!
>
> RV
>
>
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