Today's Message Index:
----------------------
1. 02:43 AM - Re: Stalls (Phil Brown)
2. 06:05 AM - stalls (ivo welch)
3. 09:21 AM - Re: stalls (Andy Karmy)
Message 1
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--> RV9-List message posted by: "Phil Brown" <philipbrown@onetel.net.uk>
cheers mate
----- Original Message -----
From: "Albert Gardner" <spudnut@worldnet.att.net>
Subject: RV9-List: Stalls
> --> RV9-List message posted by: "Albert Gardner"
<spudnut@worldnet.att.net>
>
> I find there is warning with only a little buffet but the recovery is
rapid
> with little altitude loss in straight ahead stalls. Accelerated stalls at
> low speed and gross weight but be a different matter.
> Albert Gardner
> RV-9A 872RV
> Yuma, AZ
>
> ----- Original Message -----
> From: "Phil Brown" <philipbrown@onetel.net.uk>
> To: <rv9-list@matronics.com>
> Subject: Re: RV9-List: The 180 hp -9
>
>
> > --> RV9-List message posted by: "Phil Brown" <philipbrown@onetel.net.uk>
> >
> > thanks for the info........while I'm at it ,in the U.K. a stall warning
> > device has been made mandatory to all vans aircraft due to there being
> > hardly any pre stall buffet warning.......surely the 9 has a different
> > airfoil section and should behave differently to the other marks(as
there
> is
> > not yet any 9,s flying over here the powers that be lump all RVs into
the
> > same basket) how much buffet do YOU get in your 9?
> > ----- Original Message -----
> > From: <DThomas773@aol.com>
> > To: <rv9-list@matronics.com>
> > Subject: Re: RV9-List: The 180 hp -9
> >
> >
> > > --> RV9-List message posted by: DThomas773@aol.com
> > >
> > > The RV-9 spars are roughly the same size in their external dimension(
> > width,
> > > length etc.), but the heavy aluminum bars riveted to the web, top and
> > bottom,
> > > are about 1/3 smaller. They are as heavy as they need to be to
> accomplish
> > the
> > > goals and mission of the airplane. They are not designed for an
> areobatic
> > > airplane or for an airplane with an engine greater than 180 HP.
> > >
> > > Dennis Thomas
> > >
> > >
> >
> >
>
>
Message 2
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--> RV9-List message posted by: ivo welch <ivo.welch@yale.edu>
I put a riteangle AoA system into my RV-9A. it was the biggest waste of
all my expenditures. The reason is not that the riteangle does not
work. It does and very nicely.
But the reason why it is a waste of money is that you practially have to
point the 9A at the moon before it stalls, which is not easy to do (it
takes a long while), there is a little buffeting, and the stall itself
is harmless (loss of a little attitude, not much). the 9A is one
amazingly docile and forgiving airplane. if it were certificated, it
would be the perfect airplane for students to learn in. it loves to
fly. it has "almost-glider" characteristics.
has anyone tried to spin? I am chicken, so I have not.
/iaw
Message 3
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--> RV9-List message posted by: "Andy Karmy" <andy@karmy.com>
During my test phase I have done spin entry both left and right by kicking some
rudder during the stall. I held it just enough to feel the break and entry/start
of rotation then recovered. Easy enough to feel the entry and know that things
are about to get interesting. You can hold it both left and right with rudder
in a deep continued stall easily.
Now for some real fun... At 6000ft I was playing with the dreaded base to final
holding top rudder turn and oposite aileron. That gives you cross controled aileron
& rudder, then pull it into a stall. First as Ivo indicated the stall is
so nose high that you can't help but tell something is wrong long before it
gets real bad. Then at the break with cross controls it takes about 2 seconds
and you are inverted! Yikes. Get's your attention that's for sure.
I asked Vans about spins in the 9 and they said only that they were not recomended
and that they had spin tested to FAR 23 standards for standard category aircraft.
Thus the most they would have to do is 1 turn of a spin and then recovery.
- Andy
>--> RV9-List message posted by: ivo welch <ivo.welch@yale.edu>
>has anyone tried to spin? I am chicken, so I have not.
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