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1. 10:16 AM - Re: Fin attach/rudder flutter (Boyd C. Braem)
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| Subject: | Re: Fin attach/rudder flutter |
--> Rocket-List message posted by: "Boyd C. Braem" <bcbraem@comcast.net>
Dave--
Did the "stick slap" up to 293 mph and then held a shallow dive to about
10% above that for Vd.
David.vonLinsowe wrote:
>--> Rocket-List message posted by: "David.vonLinsowe" <David.vonLinsowe@delphi.com>
>
>Boyd,
>
>Up to what airspeed did you try to induce flutter by stick bumping?
>
>Dave
>
>
>Time: 01:44:03 PM PST US
>From: "Boyd C. Braem" <bcbraem@comcast.net>
>Subject: Re: Rocket-List: Fin attach/rudder flutter
>
>--> Rocket-List message posted by: "Boyd C. Braem" <bcbraem@comcast.net>
>
>Well, the Super 6 has a unique airframe/engine combination and to
>develop a Vn plot for the aircraft you have to fly it.. It's called
>test flying. That's part of the process. If something would have
>happened, the pilot (me) would have been, let's say "busy", not
>necessarily "surprised", because your mindset has to be that you know
>something could happen (they do have things called parachutes, helmets
>with visors, steel toed boots, Nomex, etc.). But the 'plane was well
>designed, engineered and built and nothing did happen taking it to the
>edges of its envelope. But, yes, if you do get true flutter in a
>control surface, the assumption is that it will destruct, which is why I
>
>find it amusing that the aerodynamic guys call it flutter instead of
>disingetrating, or kabooming or simply falling apart--I mean, flutter is
>
>like a little gentle butterfly landing on your finger on a cool summer
>morning.
>
>do not archive
>
>
>
>
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