REFLECTOR: Catto Prop Pitch

[Ron Brown]

Hi Larry,

I started off with a 66" x 72" Catto on my 173 Elite RG with Lycoming IO 
360, 200 HP.  It was a bit too long legged, static RPM was less than 2200 
rpm and maximum with wide open throttle was 2550.  Take off and climb were 
anemic.  I sent the prop back to Craig and he repitched it to 70" and it 
felt like I was starting off in "2nd" gear versus "high" gear.  (With an 
M/T, you can start off in "1st" gear).

My static RPM is now 2400 rpm and WOT is something over 2700 rpm.  The 
interesting part is that the top speed is pretty much the same at 168 knots 
vs. 165 knots - just more rpms and HP.

By the way, some body on the reflector said you need to start off with more 
pitch than needed - then Craig can repitch lower - repitching to a higher 
pitch is more difficult.  Just collect data and Craig can repitch to meet 
your specific requirements.

Craig uses USPS (you ought to see the stares in the post office when you 
pick it up!!!) with coast to coast shipping costing less than $50 and since 
this goes Priority mail, only takes three days!  Total turn around was three 
weeks.

Ronnie

----- Original Message ----- 
From: "Larry Parham" <larry062851 at hotmail.com>
To: <reflector at tvbf.org>
Sent: Wednesday, March 16, 2005 6:30 PM
Subject: Re: REFLECTOR: RE: I AM A JERK (for buying an MT prop)


> Ronnie, the Velocity I bought has an Ivo Prop that I will be selling(the 
> prop).  I have just bought a Catto Prop and it is a 66X74 and I have the 
> Franklin 220 and it is a RGE.  Any input on that pitch?
>
> >From: "Ron Brown" <romott at adelphia.net>
>>Reply-To: Velocity Aircraft Owners and Builders list <reflector at tvbf.org>
>>To: "Velocity Aircraft Owners and Builders list" <reflector at tvbf.org>
>>Subject: Re: REFLECTOR: RE: I AM A JERK (for buying an MT prop)
>>Date: Tue, 15 Mar 2005 15:15:43 -0500
>>
>>I LOVE my Catto!!!!!!!
>>I too had considered the M/T but got over it after all of the problems 
>>folks have had.
>>I made the RIGHT decision!!!
>>
>>Ronnie
>>173 Elite RG
>>165 kts on a 66"dia x 70" pitch flying off of a 3000' runway 800' msl.
>>
>>
>>----- Original Message ----- From: "Randy Wharton" 
>><rwharton at buckeye-express.com>
>>To: "'Velocity Aircraft Owners and Builders list'" <reflector at tvbf.org>
>>Sent: Tuesday, March 15, 2005 1:21 PM
>>Subject: RE: REFLECTOR: RE: I AM A JERK (for buying an MT prop)
>>
>>
>>>I'm nowhere near ready to be ordering a prop yet, but I really am glad to
>>>hear about the problems that people have had with MT. It has certainly
>>>helped me make up MY mind. Sounds like a Catto will be in my future. And 
>>>as
>>>far as hard feelings go, I can sympathize! If I had gotten that kind 
>>>third
>>>class treatment after paying a first class price, I would be livid, too.
>>>
>>>Randy Wharton
>>>
>>>  _____