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From: <cardmarc@charter.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: IAS and Vne! Whoa!
Date: Wed, 5 Jan 2005 14:17:46 +0000
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Stall speed approaches TAS at altitude. I think that is one reason why the big boys use Mach numbers and stick shakers. Now I said more than I know. Maybe the military and heavy iron guys can chime in.
Marc
> From: Jim Sower <canarder@frontiernet.net>
> Date: 2005/01/05 Wed AM 07:10:04 GMT
> To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
> Subject: [FlyRotary] Re: IAS and Vne! Whoa!
> 
> Actually, I'm talking about flutter.  VNE (for our homebuilt purposes) 
> seems to be that IAS at which the designer who almost certainly hasn't 
> gone into it too very deeply, begins to perceive that he is on the cusp 
> of being uncomfortably close to it.  Flutter that is.  It's on that page 
> in the POH that even SMELLS like it's been pulled out of someone's ass :o)
> I think I'll get some sleep ... Jim S.
> 
> Jim Sower wrote:
> 
> > Actually, I've been given to understand that *both* IAS and TAS are a 
> > factor.  I don't know exactly what the relationship is, just that they 
> > both come into play.
> > But now I've  told you more than I know ... Jim S.
> >
> > John Slade wrote:
> >
> >>  > Apparently Vne is NOT, it is a factor of True Airspeed!!  That's 
> >> contrary to what I've read with respect to canard pushers, Ed.
> >> As I understand it VNE for the Cozy, for example, is 220 mph IAS.
> >> It's all to do with how many air molecules are hitting the airplane.
> >> Someone tell me I'm wrong. ???
> >>  
> >> John
> >>  
> >>  
> >>  
> >
> >
> >
> >>>  Homepage:  http://www.flyrotary.com/
> >>>  Archive:   http://lancaironline.net/lists/flyrotary/List.html
> >>
> >
> >
> 
>