Hmm.....
Interesting .........
Not "Tricky Dicky" but "Tricky Eckey"! .....Good one Bernard.
It would seem that Roger Druce called it pretty well, in his post.
I seem to vaguely recall in one of the commercially produced NZ soaring videos
- was it "Gladiators in the Sky"(??) - (which I don't have to have to hand),
where an ASW 22's (??) wings were caught on camera doing something similar on
(a straight in ??) landing approach. Can anybody throw this footage up?
Gary
----- Original Message -----
From: ec...@internode.on.net
To: Discussion of issues relating to Soaring in Australia.
Sent: Thursday, May 05, 2011 12:04 AM
Subject: Re: [Aus-soaring] Re NZ ASH on youtube.
Hello Mike, hello all!
Sorry guys, I should have provided some background information to prevent a
lot of unnecessary
e-mail correspondence.
Terry was trying to impress air show crowd by demonstrating the strength and
flexibility of a modern
glider wing. He simply cycled the flap lever very rapidly several times and
in quick succession. By doing
so he deliberately induced a wing flex that is well within the capabilities
of the aircraft. In other words,
NO FLUTTER AT ALL!
Once again, please accept my appology for failing to explain this in the
first place.
Kind regards to all!
Bernard
----- Original Message -----
From:
"Discussion of issues relating to Soaring in Australia."
@lists.internode.on.net>
To:
"Discussion of issues relating to Soaring in Australia."
Cc:
Sent:
Wed, 04 May 2011 18:46:42 +1000
Subject:
Re: [Aus-soaring] Re NZ ASH on youtube.
At 05:50 PM 4/05/2011, you wrote:
>Well Aerodynamicists, is it really fluttering after the anhederal?
>Peter Heath -
It looks like he had landing flap deployed then went to negative. In
the Schleicher gliders the landing flap transfers the lift to the
inner part of the wing and the tips then hang down or at higher
speeds could even lift downwards, hence the anhedral.
Sure looks like flutter to me, initiated by the impulse of moving the
lift outboard suddenly. This probably isn't a test condition that the
designer envisaged.
Fortunately the flutter was damped and ceased after a few oscillations.
Mike
Borgelt Instruments - manufacturers of quality soaring instruments since
1978
phone Int'l + 61 746 355784
fax Int'l + 61 746 358796
cellphone Int'l + 61 428 355784
email: mborg...@borgeltinstruments.com
website: www.borgeltinstruments.com
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