Filament wound airfoils. (again)

"Paul Saccani" wrote in message
...
On Wed, 15 Jun 2011 23:24:01 +1000, "Atheist Chaplain"
wrote:


"Paul Saccani" wrote in message
. ..
On Fri, 10 Jun 2011 23:15:24 +1000, "Atheist Chaplain"
wrote:


"Paul Saccani" wrote in message
m...
On Mon, 6 Jun 2011 19:24:46 +1000, "Atheist Chaplain"
wrote:

why use paper honeycomb, a foam form would be easier to shape
accurately
and
just as light, though filament winding would require a degree of
accuracy
that most homebuilders could not afford.

Indeed.

I did the sums, and it seems that paper honey comb would come out a
good deal lighter. That might be OK for fixed wing, but no good for
rotary, the original application.


interesting, but accuracy in the forms would be my greatest worry,
especially for a lifting surface,
how would they compare ??

It's not really my area, I should imagine it wouldn't be a great
industrial problem. For the homebuilder, I don't think either
technique should be used for making rotors.

considered metal and rivets but early on I came to the conclusion that I
can
put a dent in armour plate so working with thinner materials is a dodgy
prospect :-)

I suppose you are thinking of one of those foam cored canards?


KR2 with foam core wings seems to be a good prospect and having learnt
laying down of glass and resin at high school I do have some experience
with
it :-)

Ah well, have fun.

Fixed or retractable gear?


Probably fixed tricycle to start with.
There was a page on the net by Mark Langford detailing his modified KR2
build and he had some wonderful methods for laying down bubble free glass
skins as well as the use of Carbon fibre for leading edges etc. sadly upon
checking my bookmarks I find it has disappeared

Google is my friend :-)
http://www.n56ml.com/

VollyWobble or what?


not a fan of auto conversions, Jabiru make a couple of reasonably priced 4
and 6 cylinder engines designed for the job.

VH or RAA?

still RAA, not enough disposable income to cross over to VH just yet :-)
If
ever, I don't see a need just yet for carrying any more than one passenger
ATM and RAA registered AC that are for sale are still thick on the ground
at
reasonable prices if I decide to buy.

This is where we have it over the yankees. They have speed
restrictions on LSA, no retractable, fixed pitch airscrews - we've got
much more freedom than they have in this regard.





--
Cheers,
Paul Saccani
Perth, Western Australia.


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