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ACRO E-mail Archive Thread: [Acro] Metal vs. Wood Again

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ACRO E-mail Archive Thread: [Acro] Metal vs. Wood Again


Thread: [Acro] Metal vs. Wood Again

Message: [Acro] Metal vs. Wood Again

Follow-Up To: ACRO Email list (for List Members only)

From: "Eric Minnis" <acroeric at>

Date: Thu, 14 Feb 2002 08:31:14 UTC


  	Several months ago I purchased a very nice Swick Clipped Wing
Taylorcraft. It is one of only a handful that are still certified (not
experimental). I have been flying aerobatics in it and pull a max of +5
and -2 g's. I am just learning aerobatics and it seems perfect for the
task.  It weighs 797 empty and has a little 0-200 that pulls it along
really well. I get great climb (1100 fpm) and decent cruise (105mph).
	My plane also has metal spars. I have read several posts before
about the pro's and con's of wood vs. metal and I wanted to ask again.
The spars in my plane are the piper extrusions like used in the super
cub. Back when it was converted, spruce was really hard to come by so
Mike Swick added the metal spar option to the STC. I have heard several
opinions but never an answer based on data or real engineering tests. I
feel that it is overbuilt considering the empty weight and light
aerobatic weight (1100 lbs.) Anyone with experience on this one?

Eric Minnis
N43740 Swick Tcraft
IAC 0605999

-----Original Message-----
From: Ian Scott [mailto:ian.scott at] 
Sent: Wednesday, February 13, 2002 3:49 AM
To: acro at
Subject: [Acro] Noise reduction

I may need to reduce the noise my Extra 230 makes. Changing the prop for
something with more blades is probably going to be necessary.

Just wondering if anyone has heard of a 230 getting a prop transplant
from a
2-blader to a 3-blader and how it effects noise, peformance and if any
major surgery is required to accomodate, what I assume will be a heavier
prop. Right now I have a 2 bladed MT prop (MTV2-B-C).

Thanks for any and all help and suggestions.




© Dr. Günther Eichhorn
Email Guenther Eichhorn