Message #228

Date: Dec 28 1999 05:07:40 EST
From: John Bullens <jbullens@mciworld.com>
Subject: Re: Moisture Content Changes

Season's Greetings Eric,  hope Santa didn't try to stuff a baby down your
chimney

I'm not a moisture specialist but my baby was built in Washington state,
taken to West Texas, New Mexico, Kentucky and back to Texas.  She never
exhibited any signs of looseness or give me any problems.  I think the
moisture content is sealed in with the preserving process.  (Sealer).  I
only use two part sealer, (stits). 4 coats at that.  First two coats thinned
for penetration and two coats normal.  If the baby is sealed good as she
should be, there shouldn't be a problem.  Mine was sealed good in the wing
panels but not too good in the lower Longerons.  Still had no problems. I'm
sure this mail will raise some discussions. Pro n Con.

I think Ken Rand who designed the KR series of airplanes, said it best,
cheap varnish and single stage polyurethane is for "cheap boat decks and
masks", made of Teak, that has natural oil in them for protection and "they
have no place on an airplane".  Unfortunately I can not tell the difference
between the two part and single stage, after they dry.

Over look my "ramblings and spelling", I'm up at 4 am with a neck ache
taking "hydrocodone" tablets and typing this in a codeine fog.

Just my 2 cents worth.

JB.
http://www.geocities.com/capecanaveral/launchpad/9700/

-----Original Message-----
From: ejj1@earthlink.net <ejj1@earthlink.net>
To: FlyBaby <FlyBaby@listbot.com>
Date: December 28, 1999 06:57 AM
Subject: Moisture Content Changes


FlyBaby

I've been around wood boats for many years, but wood airplanes are new to
me.

Are there any problems with normal changes in moisture content in a Fly Baby
(or
other wood airplane). For example, suppose I were to buy a Fly Baby in the
relatively humid East and bring it to very dry Southern California. Would
there
be any structural problems? Does anyone notice any changes between the more
humid summer and the drier winter in other areas of the country?

Eric