Has anyone read the article in the latest Custom Planes on
flutter
starring our first design?
Chris
microcosman.com
Vance W Jaqua wrote:
Chris- I finally backed up to the Jan issue and read the report. I was
probably one of the people that he mentioned talking to, and I suggested
raising the frequancy with a stiffening bulkhead in the tail. His more
direct approach of cutting off some vert mass apparently did the job.
An intersting side to this that others on the site might find
interesting
is the fact that this is another demonstration that composite planes
appear to be one of the few configurations where you can fly home
to tell about your experience after flutter. Actually the Piper that
he mentioned seeing the video, also flew home. The flutter almost
instantly broke the spar in the horizontal, and this shifted the
frequency. The skins were still intact, and provided enough
structure for a gingerly return to field. Vance
Can somebody scan that article for me?
Or Xerox it? Are we talking torsional flutter of the entire tail?
How about a few layers of diagonal carbon uni inside the aft fuse?
Paul Lamar
Paul - here is the article, it is really rather light, but reminds one of
the devil waiting behind the tree - Vance
Thanks Vance here is the first page only as they are too big to
upload all at once.
I talked to Ron Caraway about putting a 13B in this and he laughed and said
he would never make it from Apple Valley to Copper State on the fuel it
could carry. Typical of the misinformation on the rotary out there.
We need to have more people fly longer distances to air shows to overcome
this prejudice. I don't fully understand this. Perhaps people are embarrassed
by what they don't understand and they hide their befuddlement by bad mouthing
the subject of their befuddlement. They tend to seize on a particular criticism
and repeat it over and over again as the gospel truth.
Paul Lamar
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