---------------------------------------------------------- Rocket-List Digest Archive --- Total Messages Posted Sun 06/01/03: 1 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 10:16 AM - Re: Fin attach/rudder flutter (Boyd C. Braem) ________________________________ Message 1 _____________________________________ Time: 10:16:22 AM PST US From: "Boyd C. Braem" Subject: Re: Rocket-List: Fin attach/rudder flutter --> Rocket-List message posted by: "Boyd C. Braem" 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" > >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" >Subject: Re: Rocket-List: Fin attach/rudder flutter > >--> Rocket-List message posted by: "Boyd C. Braem" > >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 > > > >