Catto prop was Re: REFLECTOR: Grand Rapids Engine Monitor

Scott Derrick scott at tnstaafl.net
Tue Sep 21 08:45:49 CDT 2004


I second Brett's message.

I haven't placed my order yet for the prop for my new TSIO520 but I'm sure 
this will help a lot.

There was a Morris in my area, "E", he had a Merry Maid business on the 
side, but I don't think his first name was Bob?  Lots of folks at Oakland.

Scott

At 05:30 AM 9/21/2004, you wrote:
>Dave - thanks for all of your work on this, my Catto prop is waiting on your
>test data as well, so I really appreciate your effort!
>
>Brett
>
>----- Original Message -----
>From: "Dave Dent" <davedent at comcast.net>
>To: "Velocity Aircraft Owners and Builders list" <reflector at tvbf.org>
>Sent: Monday, September 20, 2004 11:26 PM
>Subject: Re: Catto prop was Re: REFLECTOR: Grand Rapids Engine Monitor
>
>
> > Scott did you know a guy named Bob Morris while at Oakland Center? He is a
> > good friend of mine.
> > As soon as I can fly out of my restricted area I hope to try a higher
> > airport.  It may not be Tahoe or Bishop but some where high.
> > Catto is starting to build a new prop for me with more pitch but will not
> > put the pitch in till I get him more data.  I am sending him some tonight.
> > Tomorrow morning I will be getting more.  I record it while I fly with the
> > GRT EFIS.  He wants altitude and RPM, with true airspeed.  I'll put close
>to
> > two hours on it tomorrow.
> > Dave
> > ----- Original Message -----
> > From: "Scott Derrick" <scott at tnstaafl.net>
> > To: "Velocity Aircraft Owners and Builders list" <reflector at tvbf.org>
> > Sent: Monday, September 20, 2004 11:32 AM
> > Subject: Re: Catto prop was Re: REFLECTOR: Grand Rapids Engine Monitor
> >
> >
> > > Dave,
> > >
> > > If you see Chuck, tell him Scott Derrick says hi.  We were radar rats
> > > together at Oakland Center.
> > >
> > > Why "don't do" Tahoe.  I fly into TVL quite a lot in my Std RG?  I was
> > even
> > > foolish enough to give a 250 lb. guy a ride out of there(he was building
>a
> > > V), and I had 60 gallons of fuel and my travel tool kit on board!  And
>it
> > > was a pretty warm summer evening!  I think density was around 10,000.
>Man
> > > you talk about using up some runway!  That was a lesson I'll never
> > > forget.  I have no problem going into TVL with me and the wife(she's a
> > > light weight) and baggage.  Though I restrict our full fuel departures
>to
> > > early morning.
> > >
> > > MHV can give you some intermediate density's, but nothing like Bishop,
> > > Tahoe or my airfield GNT's.   I just thought you might want to see how
>she
> > > performs in the mountain west before twisting the prop anymore.
> > >
> > > Scott
> > >
> > >
> > > At 10:05 AM 9/20/2004, you wrote:
> > > >Scott
> > > >I do know Chuck. I haven't seen him for a few weeks but we have a good
> > > >community of pilots here at Livermore.  I have been on the field since
> > 1967
> > > >so I know most of them.  Not all by name but most by sight.
> > > >I go to the high desert now and then but I am not sure if I will before
>I
> > > >change out the prop.  But if I do I'll let you know.  I go to Scaled
> > > >Composites now and then and on a good hot day there you can get some
>good
> > > >numbers.  But going into Tahoe I don't do.  But I did do Minden just
>last
> > > >Saturday in the Cozy.  We had 40kt winds coming right down the run way.
> > No
> > > >fun but I got it on the ground.  Had to hide behind a hangar for a hour
> > > >before they subsided to get airborne again. Flying over to Columbia
>this
> > > >morning to do a condition inspection on a EZ.
> > > >But I'll keep you informed.
> > > >----- Original Message -----
> > > >From: "Scott Derrick" <scott at tnstaafl.net>
> > > >To: "Velocity Aircraft Owners and Builders list" <reflector at tvbf.org>
> > > >Sent: Monday, September 20, 2004 6:34 AM
> > > >Subject: Catto prop was Re: REFLECTOR: Grand Rapids Engine Monitor
> > > >
> > > >
> > > > > Dave,
> > > > >
> > > > > I would have expected a higher static considering your cruise speed
>at
> > > >2700
> > > > > rpm.
> > > > >
> > > > > I'm certainly no fixed pitch prop expert but I think the only way to
> > get
> > > > > more speed on the top end is to go a higher pitch, which will
> > sacrifice
> > > > > some of your take off performance.   It does seem you could add a
>few
> > > > > hundred feet to your take off without too much of a compromise in
>take
> > off
> > > > > ability.
> > > > >
> > > > > Do you have a high altitude airport you could try at gross weight to
> > see
> > > > > how this prop performs under worst case conditions before changing
>to
> > a
> > > > > higher pitch?  Like South Lake Tahoe on a warm day?
> > > > >
> > > > > BTW,    You know Chuck Wahl at LVK, he just finished restoring his
>T28
> > > >last
> > > > > year?
> > > > >
> > > > > Scott
> > > > >
> > > > > At 08:41 PM 9/19/2004, you wrote:
> > > > > >I have a XL/RG 1725 empty wt.  Aprox. 50gal. gas on take off.
> > > > > >IO-540 260HP
> > > > > >LVK is 400MSL
> > > > > >Climbing out at 2400 RPM
> > > > > >----- Original Message -----
> > > > > >From: "Scott Derrick" <scott at tnstaafl.net>
> > > > > >To: "Velocity Aircraft Owners and Builders list"
><reflector at tvbf.org>
> > > > > >Sent: Sunday, September 19, 2004 4:03 PM
> > > > > >Subject: Re: REFLECTOR: Grand Rapids Engine Monitor
> > > > > >
> > > > > >
> > > > > > > What airframe/engine combo are you flying?
> > > > > > >
> > > > > > > What's your static RPM as you start to roll?
> > > > > > >
> > > > > > > What altitude are you flying out of?
> > > > > > >
> > > > > > > Scott
> > > > > > >
> > > > > > > At 02:35 PM 9/19/2004, you wrote:
> > > > > > > >Got some food for thought.  I have been testing the new fixed
> > pitch
> > > >Catto
> > > > > > > >prop and using the GRT. EFIS is great for this.  In the demo
> > record
> > > >mode
> > > > > >I
> > > > > > > >can get all the data and study it.  It doesn't come out as a
> > > >printable
> > > > > > > >spread sheet data but as play-back where you can watch as you
> > flew
> > > >it.  I
> > > > > > > >can see right when I took off and the rate of climb and RPM's
>and
> > > >MAP's I
> > > > > > > >was putting out.
> > > > > > > >
> > > > > > > >As far as the prop goes it is doing a great job of take-off and
> > climb
> > > >but
> > > > > > > >hurting a little on the top end.  I am seeing right around
>172kts
> > > >true at
> > > > > > > >2700rpm.  Craig says we can work on this to improve.  It is
>very
> > > >smooth
> > > > > >and
> > > > > > > >quite.  I think some of the quietness comes from being two
>inches
> > > >further
> > > > > > > >back.  But right now it is a real pleasure to fly in front of.
> > > > > > > >
> > > > > > > >So related to using the GRT system it is great. Once you have a
> > > >handle on
> > > > > > > >how to pull up different minus.  I am still having problems
>with
> > the
> > > >HIS,
> > > > > > > >soon to master.
> > > > > > > >
> > > > > > > >----- Original Message -----
> > > > > > > >From: "Scott Derrick" <scott at tnstaafl.net>
> > > > > > > >To: <amillin at kal-soft.com>; "Velocity Aircraft Owners and
> > Builders
> > > >list"
> > > > > > > ><reflector at tvbf.org>
> > > > > > > >Sent: Sunday, September 19, 2004 9:36 AM
> > > > > > > >Subject: Re: REFLECTOR: Grand Rapids Engine Monitor
> > > > > > > >
> > > > > > > >
> > > > > > > > > Andy,
> > > > > > > > >
> > > > > > > > > thanks for presenting my situation to GRT.
> > > > > > > > >
> > > > > > > > > I'll give Todd a call.
> > > > > > > > >
> > > > > > > > > I'm also waiting on a promised reply from Dynon. Their new
> > Engine
> > > > > >Monitor
> > > > > > > > > is due to be released soon.  With a two DA10's you can have
>an
> > > >EFIS
> > > > > >and
> > > > > > > > > engine monitor.  And pick your display for pilot and
>co-pilot
> > > > > >position.
> > > > > > > > >
> > > > > > > > > Scott
> > > > > > > > >
> > > > > > > > > At 12:36 PM 9/16/2004, you wrote:
> > > > > > > > > >Scott,
> > > > > > > > > >
> > > > > > > > > >Greg and Todd from Grand Rapids came down to Kalamazoo and
> > > > > >demonstrated
> > > > > > > > > >their PFD and EFIS systems.
> > > > > > > > > >
> > > > > > > > > >I asked them about the configuration you want to put in.
>The
> > > >answer
> > > > > >was
> > > > > > > > > >"Yes"  They must not have understood what you were trying
>to
> > do.
> > > > > > > > > >
> > > > > > > > > >If you get the EIS with the Graphical display, you get 8
>aux
> > > >inputs.
> > > > > > > > > >
> > > > > > > > > >The fuel flow does not use an aux input.  The fuel level
>can
> > only
> > > >be
> > > > > > > > > >displayed on the graphical display.  You will be right at 8
> > with
> > > >the
> > > > > > > > > >configuration you wanted.
> > > > > > > > > >
> > > > > > > > > >Manifold Pressure (1 aux)
> > > > > > > > > >Fuel Pressure (1 aux)
> > > > > > > > > >Fuel Level (2 aux)
> > > > > > > > > >Ammeter (1 aux)
> > > > > > > > > >Vacuum (1 aux)
> > > > > > > > > >TIT (2 aux)
> > > > > > > > > >
> > > > > > > > > >This is with the Graphical display.  It will not work with
> > just
> > > >the
> > > > > >EIS.
> > > > > > > > > >
> > > > > > > > > >Give them a call and ask for Todd.
> > > > > > > > > >
> > > > > > > > > >Best,
> > > > > > > > > >
> > > > > > > > > >Andy
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > > >-----Original Message-----
> > > > > > > > > > >From: reflector-bounces at tvbf.org
> > > > > >[mailto:reflector-bounces at tvbf.org]On
> > > > > > > > > > >Behalf Of Scott Derrick
> > > > > > > > > > >Sent: Thursday, August 19, 2004 11:06 AM
> > > > > > > > > > >To: Velocity Aircraft Owners and Builders list;
> > > >reflector at tvbf.org
> > > > > > > > > > >Subject: REFLECTOR: Grand Rapids Engine Monitor
> > > > > > > > > > >
> > > > > > > > > > >
> > > > > > > > > > >I was seriously considering swapping my 4 cylinder Vision
> > for
> > > >GRT's
> > > > > >6
> > > > > > > > > > >cyl graphical Engine monitor.  I looked over the specs
>and
> > > >realized
> > > > > >the
> > > > > > > > > > >aux inputs were limited and the standard ones were wasted
> > and
> > > >not
> > > > > > > > > > >changeable items like Carb temp and OAT.
> > > > > > > > > > >
> > > > > > > > > > >I asked their tech support about how I could make it work
> > with
> > > >my
> > > > > > > > > > >instrumentation needs.  They replied that I would just
>have
> > to
> > > >do
> > > > > > > > > > >without TIT or some of the other items. Are they serious?
> > They
> > > > > > > > > > >considered them not really needed like fuel flow or
> > manifold
> > > > > > > > > > >pressure???  While I haven't completely crossed them off
>my
> > > >list of
> > > > > > > > > > >possible's I think their product is definitely oriented
> > towards
> > > >the
> > > > > > > > > > >ultralight  and wheenie simple engine market...
> > > > > > > > > > >
> > > > > > > > > > >Why would they force me to display Carb heat when most
>new
> > > >engines
> > > > > >are
> > > > > > > > > > >injected? OAT is nice but way down on my list for an
>engine
> > > > > >monitor.
> > > > > > > > > > >
> > > > > > > > > > >here was my request.
> > > > > > > > > > >
> > > > > > > > > > >  > I'm in the process of upgrading to a TSIO520 and will
> > need
> > > >to
> > > > > > > > > > > replace
> > > > > > > > > >the
> > > > > > > > > > >  > engine monitor I have now.
> > > > > > > > > > >  >
> > > > > > > > > > >  > I like the 6000 combined with the graphical display.
> > > > > > > > > > >  >
> > > > > > > > > > >  > However I can't see how I can display everything I
> > need.
> > > > > > > > > > >  >
> > > > > > > > > > >  > Here's your built in functions
> > > > > > > > > > >  > 6  Exhaust Gas Temperatures
> > > > > > > > > > >  > 6 Cylinder Head Temperatures
> > > > > > > > > > >  > Tachometer
> > > > > > > > > > >  > Oil Temperature
> > > > > > > > > > >  > Oil Pressure
> > > > > > > > > > >  > Outside Air Temperature( I have one of these already,
> > can
> > > >it be
> > > > > > > > > > > used
> > > > > > > > > >for
> > > > > > > > > > >something else?)
> > > > > > > > > > >  > Voltmeter
> > > > > > > > > > >  > Carburetor Temperature  ( I won't need this, can I
>use
> > it
> > > >for
> > > > > > > > > > >something
> > > > > > > > > > >  > else like TIT?)
> > > > > > > > > > >  >
> > > > > > > > > > >  >
> > > > > > > > > > >  > Heres what I need to add ( 8 items)
> > > > > > > > > > >  > Manifold Pressure ( I'm surprised this isn't in the
> > built
> > > >in
> > > > > > > >functions)
> > > > > > > > > > >  > Fuel Pressure(same with this one)
> > > > > > > > > > >  > Fuel Flow( and this one two)
> > > > > > > > > > >  > 2 Fuel Level  Gages(using capacitive sending units)
> > > > > > > > > > >  > Tubine Inlet Temp (TIT)
> > > > > > > > > > >  > Ammeter(this should be standard)
> > > > > > > > > > >  > Vacuum
> > > > > > > > > > >
> > > > > > > > > > >"Those who sacrifice freedom to get security, deserve
> > neither."
> > > > > > > > > > >- Benjamin Franklin
> > > > > > > > > > >
> > > > > > > > > > >
> > > > > > > > > > >_______________________________________________
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> > > > > > > > > >
> > > > > > > > > >"Those who sacrifice freedom to get security, deserve
> > neither."
> > > > > > > > > >- Benjamin Franklin
> > > > > > > > > >
> > > > > > > > > >_______________________________________________
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> > > > > > > > > >
> > > > > > > > > >_______________________________________________
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> > > > > > > > >
> > > > > > > > >
> > > > > > > > > "Those who sacrifice freedom to get security, deserve
> > neither."
> > > > > > > > > - Benjamin Franklin
> > > > > > > > >
> > > > > > > > > _______________________________________________
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> > > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > >_______________________________________________
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> > > > > > >
> > > > > > >
> > > > > > > "Those who sacrifice freedom to get security, deserve neither."
> > > > > > > - Benjamin Franklin
> > > > > > >
> > > > > > > _______________________________________________
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> > > > >
> > > > >
> > > > > "Those who sacrifice freedom to get security, deserve neither."
> > > > > - Benjamin Franklin
> > > > >
> > > > > _______________________________________________
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> > > >
> > > >_______________________________________________
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> > >
> > >
> > > "Those who sacrifice freedom to get security, deserve neither."
> > > - Benjamin Franklin
> > >
> > > _______________________________________________
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> > >
> >
> >
> >
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> >
>
>
>_______________________________________________
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"Those who sacrifice freedom to get security, deserve neither."
- Benjamin Franklin



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