REFLECTOR: IVO Prop

Wed Mar 16 16:12:55 CST 2005

Not exactly true.  Each blade is held between the two
serrated surfaces AND two 1/2" bolts as well......Mike

--- Ron Brown <romott at adelphia.net> wrote:

> My hanger mate has an IVO adjustable pitch on his
> Lancair 320 with Subaru 
> turbocharged 200 HP engine.
> 
> The prop blades look substantial and well made - the
> hub is where the 
> concern is.  Basically the flat portion of the
> blades are held between two 
> crush plates with no other attachments than the
> serrated faces of these 
> crush plates.  So far no problems with the prop -
> just can't get his 
> Crossflow Subaru over 5000 rpm - still looking for
> 5800 before he makes his 
> first flight.
> 
> Ronnie
> 
> ----- Original Message ----- 
> From: "Christopher Barber"
> <CBarber at texasattorney.net>
> To: <amillin at sbcglobal.net>; "Velocity Aircraft
> Owners and Builders list" 
> <reflector at tvbf.org>
> Sent: Wednesday, March 16, 2005 1:29 PM
> Subject: RE: REFLECTOR: MT Prop
> 
> 
> > Andy,
> >
> > Even though I know of issues with IVO, are the
> ones you are talking about
> > the ones concerning the Lyc 360/5** and power
> pulses?  Even though we are
> > leaning away from it, Dave (my building mate) and
> I have not completely
> > ruled out the in-flight adjustable IVO for our
> rotary installation.  Seems
> > as if IVO has gotten a lot of bad press due to
> some noted incidences (that
> > may or may not have been due to fault at IVO) and
> one of the common 
> > threads
> > is that there is a noted problem with power pulses
> and IVO does not allow
> > use on the mentioned Lycs.  Do you have "the rest
> of the story"?.
> >
> > Thanks for any insight.
> >
> > All the best,
> >
> > Chris
> > started running control systems this week. Yea.
> >
> > -----Original Message-----
> > From: reflector-bounces at tvbf.org
> [mailto:reflector-bounces at tvbf.org]On
> > Behalf Of Andy Millin
> > Sent: Tuesday, March 15, 2005 10:35 AM
> > To: 'Velocity Aircraft Owners and Builders list'
> > Subject: REFLECTOR: MT Prop
> >
> >
> > Tom,
> >
> > I believe the factory has known about MT's
> shortcomings for a while.  As 
> > I'm
> > sure you know, there really haven't been a lot of
> viable options.
> >
> > The Catto prop is looking pretty good to me.  For
> the performance, the
> > service, and yes, the price.
> >
> > I know Scott Baker has been working with
> Aerocomposites and with Hartzell
> >
>
(http://www.velocityaircraft.com/Velocity%20Online/Velocityonline.html)
> 
> > You
> > are flying, so having props in development is cold
> comfort.  It is of some
> > comfort to know that the factory is looking out
> for us and is trying to 
> > find
> > more options.  Thanks Scott.
> >
> > I have spoken with Ivo.  Due to material and
> design considerations it is 
> > not
> > and never will be an option.
> >
> > At one time Whirlwind
> (http://www.whirlwindpropellers.com/index.shtml) did
> > produce a pusher prop suitable for the Velocity. 
> They no longer make the
> > pusher prop.  I believe there are one or two still
> pushing Velocities.
> >
> > I spoke with the people at Hoffmann propellers.
> > http://www.hoffmann-prop.com/  Another German
> company.  Props cost as much
> > as MT.  I'm not sure they make a pusher.  I didn't
> pursue it as I thought 
> > it
> > would be more of the same.
> >
> > If you want to go flying today with 260+ hp in
> your Velocity, the sad 
> > state
> > is that you don't really have many options.  MT
> and Catto.  If you want
> > constant speed, then only MT.
> >
> > I'm quite certain that MT knows this; Velocity
> does. But short of making
> > their own prop, what can they do?  They need to
> sell kits and they can't 
> > if
> > they don't have a usable fan pusher thingy.  They
> recommend MT.
> >
> > I wish you good luck and good hunting with MT. 
> Any improvement in service
> > or product you can get will benefit the whole
> community.
> >
> > Best,
> >
> > Andy
> >
> > -----Original Message-----
> > From: Tom Martino
> [mailto:reflector-bounces at tvbf.org] On Behalf Of Tom
> > Martino
> > Sent: Tuesday, March 15, 2005 11:09 AM
> > To: reflector at www.tvbf.org
> > Subject: I AM A JERK (for buying an MT prop)
> >
> >
> > Did I mention that they don't answer email
> regarding important updates and
> > service bulletins?  There are updated seals that
> do not leak grease, plus
> > some other key service bulletins.
> >
> > When you email them to ask if you serial number is
> affected (my prop was
> > delivered December 2003) . they do not have the
> courtesy to answer you.
> >
> > If you call them . they tell you to send it in .
> not for the update . just
> > so they can look at it. Hey do not have the
> decency to look something up
> > while your on the phone.
> >
> > Do they think we all have time to pull props and
> ship them for the hell of
> > it?
> >
> > I have a new mission:  To let people know about
> this company (and by the
> > way, I have means).
> >
> > I believe Velocity ought to reconsider their
> recommendations.
> >
> > Tom
> >
> >
> >
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> >
> >
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=== message truncated ===

*******************************************
Mike Deeter
N2011 Test Pilot
iguanamagic at yahoo.com
http://iguanamagic.siegesmund.org
*******************************************