Hi Steve,
When I wanted to build my KR-2 in early nineties, I was in the same situation
as yours, seeking local wood,
avoiding importation of expensive Sitka Spruce.
I live in Indonesia, plenty of wood, found wood called RHAMIN (in Sumatera and
Borneo), it has very nice strait grain.
Treated properly (Kiln drying processed) and selected, got about 20% only from
the total volume.
As plywood I used marine plywood (I though it was superior to aircraft grade
plywood).
Hardware imported from Rand Robinson, engine with Happi conversion kit.
Finished. But finally hesitation to fly came to my mind because of this
un-proven material.
As I was very eager to fly, then I was mad, closed my eyes, closed my ears, I
bought/ imported Sitka Spruce
and Aircraf grade plywood, all wood kit for KR-2 (from Aircraf Spruce compay).
And started to build again a KR-2, again importation of hardware as I did not
want to take the hardware
from the first KR-2 I have built. Put a Revmaster 2100D engine. It ends up I
built 2 KR-2s.
This KR-2 flew for the first time in 1997, and maintained till now.
No .. no.. I don't suggest you anything, but please remember the post from Greg
Martin bellow
Herry Rudyanto
PK - SKV
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Just remember. Any structural plywood will have a min. of 5 layers. I have
seen a 3 layer plywood claiming to be structural. But that was for
buildings, not airplanes. And the veneer is the outside layer on both
sides. But I would stick with Birch or Mahogany. Doug Fir has a very good
chance of having grain splits caused by pitch pockets. Good luck in your
search. Remember, you safety just cost more than a bargain wood.
M. Greg Martin
On Thu, Sep 15, 2011 at 4:08 AM, Larry Flesner
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