REFLECTOR: Cruise speed "speed brake" & Glass O'cast

[Terry Miles]

I'm not flying yet, but I understand that (both rudders at once) feature
is not on later versions of the Velocity. 

New topic:  Rich, thanks for the pics of Oshkosh.
Terry

-----Original Message-----
From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
Behalf Of Kufalk
Sent: Monday, September 05, 2005 4:18 PM
To: Velocity Aircraft Owners and Builders list
Subject: Re: REFLECTOR: Cruise speed "speed brake"


Terry wrote...   "Another thought only, how about a split rudder like
the
B-727."


Don't all canard pushers already have split rudders?

If you want to slow down from cruise speed without reducing power, why
not just press both rudders at the same time?

Darrell



----- Original Message ----- 
From: "Terry Miles" <terrence_miles at hotmail.com>
To: "'Velocity Aircraft Owners and Builders list'" <reflector at tvbf.org>
Sent: Monday, September 05, 2005 6:32 AM
Subject: RE: REFLECTOR: Cruise speed "speed brake"


> Chuck,
>
> You can add me to the list of interested parties.  Here is all I have.
> In a brief and non-technical exchange w/ Scott Baker on this topic 
> back about 6 months ago, comments expressed at that time were that 
> there was a general safety concern about the panel coming off at 
> higher airloads and going into the prop.  So a conservative speed 
> limit was established and no testing was done above that speed.  And
further there was no
> interest in incremental deployment angles.   Another thought only, how
> about a split rudder like the B-727.  Only this one would split and 
> the low half both LH and RH would deflect into the slip stream.  The 
> problem solved is not it out of the prop track, but the problem 
> created is the deflection is way to far from centerline in the event 
> of assym deployment malfunctions.  Good luck with this.  Keep us 
> posted.
>
> Terry
> XL-RG with a SB
>
> -----Original Message-----
> From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org]
> On Behalf Of Chuck Harbert
> Sent: Monday, September 05, 2005 3:54 AM
> To: reflector at tvbf.org
> Subject: REFLECTOR: Cruise speed "speed brake"
>
>
> Scott, I too have wondered if there was a way to install a high speed
> speed brake like the one on the Mooney 201 that pops up on the upper 
> surface of
> the wing to kill the lift. It was great to get down in a hurry without
> puting the engine at idle. I wondered if you could install this
> electrically
> activated "fence" at the outboard edge of the strake in the wing bolt
> cavity, or inside the wing attached to the spar? They're not that
large
> as I
> recall. They fail safe in the down position and have a warning light
> when
> deployed, as I recall.
>
> I think that this might be a better way because it kills lift, rather
> than just dirtying up the plane, and possibly making it unstable. I 
> have the underbelly speed brake in my RG and it definetely works well 
> for landing,
> but I'd love to have a real speed brake. I'll try to get a look at the
> Mooney's speed brake and send everybody the info.
>
> Chuck H
>
>
> -------------------------
> Scott Derrick wrote:
>
> > I think the standard speed brake is limited to 120 knot extension
> > speed.  Which limits its uses to in the pattern.
> >
> > Has anybody experimented with beefing it up to allow higher speed
> > extensions?  Like 175 knots?  This would make it a true speed brake.
> >
> > I would like something I could deploy at cruise to enable a cruise
> > speed descent without shock cooling the engine.
> >
> > What would you think would be needed to do this?  bigger hinges?
> > bigger actuator?  carbon fiber door?
>
>
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