Wooden Notes

On 25 Jan 2006 03:08:10 -0800, wrote:



The Smilin' Jacks don't know what they're missing :-)

-R.S.Hoover


absolutely the case. I ran out of Queensland Hoop Pine that we use as
a substitute for spruce and was walking through bunnings warehouse
(the australian clone of home depot) , what did I spy but some
stunning alaskan yellow cedar. 8ft long with absolutely straight grain
and not more than one pin knot in the entire length and about 30 rings
per inch. I bought them all and sliced them up for the laminations
that form the turtledeck formers of my Turbulent. the sawdust pongs a
bit but they made superb lightweight laminated bows.

we also get a eucalyptus timber sold as "ash" or "oak" but is actually
eucalyptus deligatensis or something similar. I have seen lengths that
look absolutely perfect propeller wood. my guess is $aus70 retail for
a propeller's worth of wood.

half of this alternate wood selection is having the courage that it
will be ok in use, and that comes from an appreciation of the loads
and stresses that the components get subjected to in flight.

btw my hoop pine comes from a guy who uses it to make apiarists honey
bee boxes. he is evidently absolutely stoked that some of his bee box
wood will some day fly as an aircraft :-)

Stealth Pilot

.... now corky scott should build himself a little single seat wooden
aeroplane with a 1600cc vw engine conversion done by himself.
cheap as chips. he'd have a ball without breaking the bank.
(hey corkie send me an email and I'll reply with enough details to
work from)

Yes, there is no magic inherent in the wood coming form an "aircraft"
vendor. As long as you follow the AC 43-13 rules as to species, grain
and drying and some wood sense, your wood may be purchased anywhere.
There is no PMA issued to a forest!

"Stealth Pilot" wrote

the sawdust pongs a

Could you give a yank wood butcher an idea of what pong is in relation to
sawdust?

Thanks.
--
Jim in NC

On Wed, 25 Jan 2006 18:02:37 -0500, "Morgans"
wrote:


"Stealth Pilot" wrote

the sawdust pongs a

Could you give a yank wood butcher an idea of what pong is in relation to
sawdust?

Thanks.

I can honestly say that you probably wouldnt know ...since spruce
grows in your locale and neither it nor QHP have any aroma.

pong - an obnoxious smell, in this case the malodourous scents
emanating from the sawn alaskan yellow cedar.

It seems there would be a market for an australian-american
dictionary. ...we'd publish one if only you'd go metric :-)

Stealth Pilot

"Stealth Pilot" wrote

It seems there would be a market for an australian-american
dictionary. ...we'd publish one if only you'd go metric :-)

The *real* problem would be in making the first "smellobetic" dictionary, me
thinks. g

So it is kinda like how some of our red oak smells like "dog ****."
--
Jim in NC

That Alaskan yellow cedar is MARVELOUS WOOD !!! I bought some of it 30
yrs ago to build an air boat---had some left over to build pipe-organ
wind chests & still had some to use in my airplane-----Look at the specs!!
10% stronger ( and heavier) than Spruce --right straight across the
lines for ALL the strength specs. Can't hardly see the grain, beautiful
white stuff-(till you wet ot or varnish it--then a pale yellow) --I
bought it from a place that made wooden screen doors---(aluminum storm
doors= no more wood)

Stealth Pilot wrote:
On 25 Jan 2006 03:08:10 -0800, wrote:



The Smilin' Jacks don't know what they're missing :-)

-R.S.Hoover



absolutely the case. I ran out of Queensland Hoop Pine that we use as
a substitute for spruce and was walking through bunnings warehouse
(the australian clone of home depot) , what did I spy but some
stunning alaskan yellow cedar. 8ft long with absolutely straight grain
and not more than one pin knot in the entire length and about 30 rings
per inch. I bought them all and sliced them up for the laminations
that form the turtledeck formers of my Turbulent. the sawdust pongs a
bit but they made superb lightweight laminated bows.

we also get a eucalyptus timber sold as "ash" or "oak" but is actually
eucalyptus deligatensis or something similar. I have seen lengths that
look absolutely perfect propeller wood. my guess is $aus70 retail for
a propeller's worth of wood.

half of this alternate wood selection is having the courage that it
will be ok in use, and that comes from an appreciation of the loads
and stresses that the components get subjected to in flight.

btw my hoop pine comes from a guy who uses it to make apiarists honey
bee boxes. he is evidently absolutely stoked that some of his bee box
wood will some day fly as an aircraft :-)

Stealth Pilot

... now corky scott should build himself a little single seat wooden
aeroplane with a 1600cc vw engine conversion done by himself.
cheap as chips. he'd have a ball without breaking the bank.
(hey corkie send me an email and I'll reply with enough details to
work from)

Well, I wuss'd out and went with Sitka on my Wright machine, but only
b/c I didn't know anyone who would murder a West Virginia silver spruce
tree for me. ...that stuff's kinda hard to find, for obvious reasons.
One of the Wright recreators did use it, but then they also had a $7
million budget.

I've been entertaining the idea of building a Chanute-Herring glider
from alternate wood like doug fir or possibly yellow poplar. Anyone
got specs on yellow poplar? Didn't see it listed in AC43-13.

"wright1902glider" wrote in message
oups.com...
I've been entertaining the idea of building a Chanute-Herring glider
from alternate wood like doug fir or possibly yellow poplar. Anyone
got specs on yellow poplar? Didn't see it listed in AC43-13.

Harry...............

All I have is this table, copied from one of the old Emeraude newsletters:

Essence Spec. Grav. Tension (psi)
Yellow Poplar .44 8600
Alaska Cedar .46 9900
Douglas Fir .43 to .50 9000 to 10900
Fir .40 to .42 8400 to 9400
West. Hemlock .45 11000
East. White Pine .37 7600
West. Red Cedar .34 7100
Sitka Spruce .41 9400
Port Orford Cedar .43 10200
East. Cottonwood .43 7700

Rich S.

Rich S. wrote:
"wright1902glider" wrote in message
oups.com...

I've been entertaining the idea of building a Chanute-Herring glider
from alternate wood like doug fir or possibly yellow poplar. Anyone
got specs on yellow poplar? Didn't see it listed in AC43-13.


Harry...............

All I have is this table, copied from one of the old Emeraude newsletters:

Essence Spec. Grav. Tension (psi)
Yellow Poplar .44 8600
Alaska Cedar .46 9900
Douglas Fir .43 to .50 9000 to 10900
Fir .40 to .42 8400 to 9400
West. Hemlock .45 11000
East. White Pine .37 7600
West. Red Cedar .34 7100
Sitka Spruce .41 9400
Port Orford Cedar .43 10200
East. Cottonwood .43 7700

Rich S.


Try this--it's the whole ball o' wax---(Forest products Laboratory wood
handbook,

http://search.netscape.com/ns/boomfr...e.com%2Fsearch
Sorry 'bout the long url----just google the title..Jerry

jerry wass wrote:

Rich S. wrote:

"wright1902glider" wrote in message
oups.com...

I've been entertaining the idea of building a Chanute-Herring glider
from alternate wood like doug fir or possibly yellow poplar. Anyone
got specs on yellow poplar? Didn't see it listed in AC43-13.



Harry...............

All I have is this table, copied from one of the old Emeraude
newsletters:

Essence Spec. Grav. Tension (psi)
Yellow Poplar .44 8600
Alaska Cedar .46 9900
Douglas Fir .43 to .50 9000 to 10900
Fir .40 to .42 8400 to 9400
West. Hemlock .45 11000
East. White Pine .37 7600
West. Red Cedar .34 7100
Sitka Spruce .41 9400
Port Orford Cedar .43 10200
East. Cottonwood .43 7700

Rich S.

Try this--it's the whole ball o' wax---(Forest products Laboratory wood
handbook,

http://search.netscape.com/ns/boomfr...e.com%2Fsearch

Sorry 'bout the long url----just google the title..Jerry


Here it is ---shorter-----www.fpl.fs.fed.us/ - 29k - Jan 25, 2006


you want Ch. 4---mech. properties of wood